Ameren jobs in Collinsville, IL - 39 jobs

Missouri Ameren Missouri has been providing electric and gas service for more than 100 years, and our electric rates are among the lowest in the nation. Ameren Missouri's mission is to power the quality of life for our 1.2 million electric and 132,000 natural gas customers in central and eastern Missouri. Our service area covers 64 counties and more than 500 communities including the greater St. Louis area. Our benefits include: Medical coverage on date of hire 100% employer paid cash balance pension plan 401(k) with company match fully vested on date of hire Minimum of 15 days paid vacation and 12 paid holidays Paid parental leave and family caregiver leave Visit our Benefits & Perks Page for more information on benefits provided to regular full-time employees. About The Position The *Commodity Trader I is responsible for implementing short-term hedging strategies and providing asset optimization & energy portfolio management for generation assets. Ameren Missouri's commodity traders hedge positions for the following commodities: uranium, and related nuclear fuel services (conversion, enrichment, fabrication), coal, coal transportation, rail surcharge, emissions allowances, emissions control commodities, natural gas, natural gas transportation & services, renewable energy credits, fuel oil, alternative fuels, wholesale energy, renewable energy power purchase agreements, electric transmission, electric capacity and ancillary service agreements, . In addition, the candidate will coordinate the dispatch and fuel operations of the Ameren Missouri generation fleet. Key responsibilities include: Maintain effective communication with other commodity traders, gas supply, management, power dispatchers, energy centers, complimentary departments and external stakeholders. Timely and accurately report data associated with fuel related contracts and work with Back Office to resolve discrepancies or disputes as required Support the Nuclear Fuel Manager with SURFN fuel modeling, costs analysis and contract administrative activities Coordinate fuel delivery and transportation logistics Verify and maintain records of fuel related transactions in accordance with Sarbanes Oxley and financial reporting requirements Execute interchange sales, purchases and operational duties (scheduling, tagging, and related functions) Establish credible and effective relationships with trading counterparties/market participants to recognize and develop opportunities. Act in accordance with Credit guidelines and the Ameren Missouri Risk policy, while recommending policy changes that improve Ameren Missouri's flexibility in the marketplace. Schedule natural gas and heating oil purchases, implement hedging instruments and real time purchases to achieve a balanced portfolio Coordinate fuel delivery and transportation logistics Qualifications Bachelor's Degree from an accredited college or university required. MBA preferred. One year of commodity industry experience required. Physical nuclear fuel, power, coal, or natural gas industry experience preferred. Experience with electric system operations, scheduling, tagging, power flows and generation technologies preferred. Experience in and/or knowledge of PJM and MISO market rules strongly preferred. Multi-commodity experience preferred. Significant experience in related fields may be considered in lieu of commodity exposure. In addition to the above qualifications, the successful candidate will demonstrate: Strong interpersonal and communication skills are required. Proven leadership, team building, organizational skills and administrative aptitude preferred. Excellent decision-making, analytical and computational skills are highly desired, as well as a grasp of marginal economic reasoning. Candidates must have ability to work in a fast-paced environment with critical time deadlines. Work hours will be flexible and the individual will be on-call at various times during non-working hours. This position requires employee background check according to NERC guidelines. Additional Information Ameren's selection process includes a series of interviews and may include candidate testing and/or an individual aptitude or skill-based assessment. Specific details will be provided to qualified candidates. * Salary and Title dependent upon individual credentials and position market pay level. Note: Key responsibilities reflect the essence of the position. Additional tasks or projects may be assigned to or removed from this role based on business needs or incumbent skills and abilities. Compensation Range: $84,400.00 - $204,400.00 * This pay range encompasses multiple levels of the role. Career level and compensation depends upon applicant's credentials. At Ameren, base salary is one component of a competitive compensation package for employees. Our pay ranges are broad to allow for movement within our organization and to accommodate different skill sets and levels of expertise. We take into consideration a variety of factors including, but not limited to, skills, abilities, experience, education, credentials, and internal equity when determining the base salary offered. Roles are eligible for additional rewards including annual incentive payments based on individual and company performance. If end date is listed, the posting will come down at 12:00 am on that date: Friday January 23, 2026 All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, ethnicity, age, disability, genetic information, military service or status, pregnancy, marital status, sexual orientation, gender identity or expression, or any other class, trait, or status protected by law.

Missouri Ameren Missouri has been providing electric and gas service for more than 100 years, and our electric rates are among the lowest in the nation. Ameren Missouri's mission is to power the quality of life for our 1.2 million electric and 132,000 natural gas customers in central and eastern Missouri. Our service area covers 64 counties and more than 500 communities including the greater St. Louis area. Our benefits include: Medical coverage on date of hire 100% employer paid cash balance pension plan 401(k) with company match fully vested on date of hire Minimum of 15 days paid vacation and 12 paid holidays Paid parental leave and family caregiver leave Visit our Benefits & Perks Page for more information on benefits provided to regular full-time employees. About The Position The Strategic Account Executive is primarily responsible for establishing and nurturing the relationships with Ameren Missouri's large load customers with executed Electric Service Agreements (ESAs). This role serves as a liaison between Ameren and these strategic customers, ensuring exceptional service delivery, contract compliance, and data-driven insights that enhance both customer satisfaction and operational performance. This role requires a clear understanding of customer goals and the ability to support and advance those objectives. Key responsibilities include: Serve as a key point of contact for all large-load customers with executed ESAs. Execute on protocols, standard operating procedures (SOP), customer-facing documents (e.g. converting tariff language, ESA, Clean energy programs, etc.) Execute on the contract management process for long-term ESA & CEA compliance for internal/external tracking and requirements. Ensure success of monthly billing and assist with communication internally and to customers in a timely manner. Work to engage all relevant internal stakeholders on a regular cadence for updates. Deliver results and execute on necessary changes. Utilize dashboards for visual management of customer data. ·Strengthen trust-based relationships and align goals with strategic customers across multiple industries. Develop a comprehensive understanding of customers' business activities, financial health and overall direction to implement strategic business objectives. Serve as a personal consultant for each strategic account, building trust across the customer's organization through regular communication and feedback. Provide insights that enable customers to operate efficiently and in manner that supports grid reliability and stability. Maintain contract compliance and billing oversight for each customer Monitor usage, demand and billing timeliness. Ensure Ameren and customer remain compliant with all ESA terms and regulatory requirements. Bring awareness to any/all billing discrepancies and contractual issues. Data Analysis & Optimization Compile and analyze large load customer data to identify trends, risks, and opportunities. Collaborate with internal stakeholders to implement usage optimization strategies. Continually monitor and adjust to enhance the customer's satisfaction with our service. Serve as a conduit for information from the customers to Ameren: Utilize Ameren initiatives including regulatory or legislative affairs, policies/procedures and products/services. Contribute data to strategic planning efforts related to large load customer engagement. Assist leadership with strategic developments and, at times, take ownership. Maintain customer contact information and log ongoing activities, opportunities and data points in Salesforce. Provide competitive intelligence, trend analysis and customer feedback on a timely basis. Attend industry workshops, conferences, and customer meetings as needed. Qualifications Bachelor's Degree in Engineering, Energy Management, Business, or a related field from an accredited college or university required. Master's degree is preferred. Five or more years of experience working in customer service, account management, energy services, or utility operations is required. Strong analytical skills with experience in data interpretation and reporting. Excellent communication, negotiation, and interpersonal skills. As well as, knowledge of utility billing systems, energy contracts, and regulatory frameworks is a plus. Three or more years supervisory or team/project leadership experience is also preferred. Senior Strategic Account Executive Demonstrates a high level of understanding and execution of all Strategic Account Executive responsibilities and can train/coach others on them Serve as a key point of contact for all large-load customers with executed ESAs. Execute on the contract management process to ensure Ameren and customers remain compliant with long-term ESA & CEA terms for internal/external tracking and regulatory requirements. Ensure success of monthly billing process and bring awareness to any/all billing discrepancies and contractual issues. Work to engage all relevant internal stakeholders on a regular cadence for updates. Deliver results and execute on necessary changes. Utilize dashboards to monitor usage, demand and other metrics for visual management of customer data. Work with internal stakeholders to document protocols, standard operating procedures (SOP) and customer-facing documents (e.g. converting tariff language, ESA, Clean energy programs, etc.) for large-load customers. Strengthen trust-based relationships and align goals with strategic customers across multiple industries. Develop a comprehensive understanding of customers' business activities, financial health and overall direction to implement strategic business objectives. Serve as a personal consultant for each strategic account, building trust across the customer's organization through regular communication and feedback. Provide insights that enable customers to operate efficiently and in a manner that supports grid reliability and stability. Data Analysis & Optimization Compile and analyze large load customer data to identify trends, risks, and opportunities. Collaborate with internal stakeholders to implement usage optimization strategies. Continually monitor and adjust to enhance the customer's satisfaction with our service. Serve as a conduit for information from the customers to Ameren: Utilize Ameren initiatives including regulatory or legislative affairs, policies/procedures and products/services. Contribute data to strategic planning efforts related to large load customer engagement. Assist leadership with strategic developments and, at times, take ownership. Maintain customer contact information and log ongoing activities, opportunities and data points in Salesforce. Provide competitive intelligence, trend analysis and customer feedback on a timely basis. Understand and take initiative to onboard, coach and mentor SAEs to increase their strategic value/contributions: Act as an informal leader and consultant Lead team Meetings and join other internal/external meetings when needed Can coach others on the team through large, more complex, projects Attend industry workshops, conferences, and customer meetings as needed. Qualifications Bachelor's Degree in Engineering, Energy Management, Business, or a related field from an accredited college or university required. Master's degree is preferred. Seven or more years of experience working in customer service, account management, energy services, or utility operations is required. Strong analytical skills with experience in data interpretation and reporting. Excellent communication, negotiation, and interpersonal skills. As well as, knowledge of utility billing systems, energy contracts, and regulatory frameworks is a plus. Three or more years supervisory or team/project leadership experience is also preferred. In addition to the above qualifications, the successful candidate will demonstrate: Proven ability to perform financial analysis, lead others and convey excellent business acumen. Experience and knowledge of the power generation and transmission business preferred. Ability to communicate effectively through public speaking and written documents. Willingness to aggressively pitch positive stories, place public speakers and employ proactive communications strategies and tactics. Understanding of local, state and national issues facing Ameren and its operation companies is required. Strong decision-making, problem solving, analytical, and computational skills. Ability to build relationships and interact with internal resources and external customers. Expert knowledge of PowerPoint, Excel, Access, and Word. Additional Information Ameren's selection process includes a series of interviews and may include a leadership assessment process. Specific details will be provided to qualified candidates. Compensation Range: $88,500.00 - $172,200.00 * This pay range encompasses multiple levels of the role. Career level and compensation depends upon applicant's credentials. At Ameren, base salary is one component of a competitive compensation package for employees. Our pay ranges are broad to allow for movement within our organization and to accommodate different skill sets and levels of expertise. We take into consideration a variety of factors including, but not limited to, skills, abilities, experience, education, credentials, and internal equity when determining the base salary offered. Roles are eligible for additional rewards including annual incentive payments based on individual and company performance. If end date is listed, the posting will come down at 12:00 am on that date: Friday January 16, 2026 All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, ethnicity, age, disability, genetic information, military service or status, pregnancy, marital status, sexual orientation, gender identity or expression, or any other class, trait, or status protected by law.

Illinois Ameren Illinois provides electric transmission and distribution service and natural gas distribution service. Every day, we deliver electricity to 1.2 million electric and 816,000 natural gas customers in central and southern Illinois. We deliver safe, reliable energy to more than 1,200 communities. Duties: Under direct but not constant supervision, to do a full range of overhead line construction and maintenance work on the electrical transmission, sub-transmission, distribution, or service systems; to do such work on lines either dead or energized and at all voltages; and to perform similar and less skilled work as required. Qualifications: For consideration to this position, candidates MUST have successfully completed A.L.B.A.T. (American Line Builders Apprentice Training) or an equivalent lineman training program. Possess a High School diploma or equivalent Possess or have the ability to obtain a valid Class A Commercial Driver's License. As a condition of acceptance on this job, candidates who are otherwise qualified will be required to take and pass the appropriate State/Federal driver's licensing requirements, medical testing and drug screening and the Construction and Skilled Trades (CAST) test [Note: See "Employment Testing" section on ************** under the "Careers" section]. This position is covered by the IBEW bargaining agreement. This position requires a 25 mile residency requirement We offer excellent compensation and competitive benefits including: Medical Insurance (company supplemented) Vision Dental Life Insurance STD Pension Plan 401K Flexible Spending Account (FSA) Employee Assistance Program (EAP) Holiday Pay Vacation Pay Sick Pay Educational Assistance Program Stock Purchase Program *Some Benefits may vary based on Union Contracts or departments. We're focused on providing safe, reliable electricity and natural gas today, while developing even better ways to do that in the future. That's our focus - now, and for life. Hourly Pay: Grade Step BD 029 Step 1 of 1 (Top Step) - 53.02 USD Position is eligible for annual incentive payments based on company performance and subject to sole management discretion. Visit our Benefits & Perks Page for more information on benefits provided to regular full-time employees. If end date is listed, the posting will come down at 12:00 am on that date: All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, ethnicity, age, disability, genetic information, military service or status, pregnancy, marital status, sexual orientation, gender identity or expression, or any other class, trait, or status protected by law.

Missouri Ameren Missouri has been providing electric and gas service for more than 100 years, and our electric rates are among the lowest in the nation. Ameren Missouri's mission is to power the quality of life for our 1.2 million electric and 132,000 natural gas customers in central and eastern Missouri. Our service area covers 64 counties and more than 500 communities including the greater St. Louis area DUTIES: Under indirect and intermittent supervision, working mostly on a rotating shift, but at times on a regular day-shift assignment, and regularly working alone, to patrol, repair and restore service or report the nature of trouble found on overhead, or, as required, on underground circuits; to inspect and operate automatic substation equipment; incidental thereto to drive a Company automobile equipped with tools and materials; to make residential, commercial or industrial trouble calls, and handle customer service repairs and adjustments as found necessary to restore service; and to perform similar and less skilled work as required. In this connection to perform details of work, such as: Clear and put up fallen wires. Respond to “light out” and “power off” customer calls. Locate trouble and restore service or inform Distribution or District Dispatcher as to needs. Test circuits and equipment for open, ground, or short circuit, and clear if possible. Inspect, repair, re-install or string services, clear tree limbs, or replace brackets. Replace blown line, transformer, or substations fuses. Patrol and repair street lighting, alley circuits, or feeders. Inspect, report, and clear emergency substation trouble. Check substation operation, read meters and change ammeter or volt-meter charts. Check operation of relays and breakers in substations and reset relays. Perform routine or emergency switching on overhead or underground circuits of all voltages, or clear circuits, as directed by Distribution or District Dispatcher. Phase out and established phase rotation on overhead and underground circuits. Respond to fire alarms, clearing Company wires or customers' circuits. Install and remove grounds and protective equipment on poles or in substations. Investigate and extinguish fires on poles or in manholes. Investigate and report in detail, Company accidents involving personal injury or property damage. Investigate current thefts and answer jury summonses on cases relating thereto. Changed burned out transformers in special cases with the aid of other Troublemen. Make load tests on transformers. Install or read watt-hour and maximum demand meters. Wind, set or change time clocks, and read check meters on poles. Write requisitions and reports on all work done. In some geographical groups perform blocking and releasing of regulators, and switching operations in Company distribution and transmission substations, turn off or turn on gas service. Operate inhalator in accident cases. SPECIAL RESPONSIBILITIES: For quick response to customers' calls and for locating trouble and restoring service as quickly as possible. For careful use and custody of trouble car, stock of tools, materials. For properly accounting for small amounts of money collected on non-pay orders. For observing safety rules and traffic laws to insure public safety while on streets, highways, and customer premises. For making prompt decisions on own initiative. For exercising care in clearing or guarding fallen high voltage wires, to insure public safety. For holding as confidential information concerning accident investigations, current diversions, or non-pay orders. CONTACTS: With customers, in connection with carrying out assignments. With Overhead and Underground Foremen while performing switching operations to clear circuits. WORKING CONDITIONS: Exposed to outside weather conditions. Must dress to work in or outside. Regularly scheduled or frequently called upon to work at night under inadequate artificial light, and at times in rain, sleet or snow. Subject to work in emergency during any period of the twenty-four hour cycle. Subject to cramped or crowded work positions, and at times slippery or uneven footing. Must work alone. HAZARDS: Subject to hazard of falls or shocks, flashes, or burns while working alone on poles. Subject to the hazards of street and highway traffic, dog bites and falls on customers' premises. QUALIFICATIONS: Graduation from high school or the equivalent. One year of experience as a Lineman or successful completion of the Apprentice Line Troubleman Training program. Thorough knowledge of overhead line construction and standard practices. Ability to obtain and maintain a CDL. Be adept in artificial respiration. Be alert, neat in appearance, resourceful, agile, quick-acting, able-bodied Hourly Pay: Grade Step IA 229 Step 1 of 1 (Top Step) - 57.11 USD Position is eligible for annual incentive payments based on company performance and subject to sole management discretion. Visit our Benefits & Perks Page for more information on benefits provided to regular full-time employees. If end date is listed, the posting will come down at 12:00 am on that date: All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, ethnicity, age, disability, genetic information, military service or status, pregnancy, marital status, sexual orientation, gender identity or expression, or any other class, trait, or status protected by law.

Ameren is a leader in the energy industry, and our transformation toward more clean, renewable energy is also transforming other industries and infrastructure in our communities. As a regional company serving local customers, we not only serve our communities, we're a part of them. This isn't just a job. At Ameren, we invest in you, so you can power the quality of life you want. Visit our Benefits & Perks Page for more information on benefits provided to regular, full-time employees. About The Position Ameren Services provides administrative support and services to Ameren Corporation and its operating companies, subsidiaries and affiliates. Nearly 1,400 employees serve the company with business planning, communications, inclusion, financial support, human resources, information technology, legal counsel, safety and supply services. The candidate will work on-site at Ameren HQ and interface with external stakeholders and co-workers onsite, over TEAMS virtually, and possible in off-site meetings. May - December 2026 Fall Co-Op Key responsibilities include: Supports the daily operations of Ameren's Sustainability, Community and Inclusion team, which have recently merged under the "SCI" umbrella under the leadership of Ameren's Chief Sustainability Officer. Responsibilities for the candidate will be divided by approximately 1/3 time invested with each department, either per week or on a rotational basis (TBD). Activities may include Environmental, Social, Governance (ESG) benchmarking/research, ESG voluntary reporting support, and/or support with Energy Affordability initiatives; Upgrade and maintenance of the inclusive engagement team webpage and SharePoint site, assistance with implementing inclusive engagement employee and community outreach efforts, and collaborating on equity projects; Collecting and distilling post-grant and post-sponsorship data, and collating information to inform graphs, editorial, and stronger nonprofit partner relationships, and supporting corporate campaigns like United Way or other co-worker-involved fundraising activities. Qualifications Education: Must be a current student pursuing a Bachelors or Masters from an accredited college or university required. Human Resources, Digital Communications, Marketing, or Design major is preferred. A cumulative GPA of 2.5 is required. Experience: Aptitude for collecting data points and reasoning to find commonalities and outliers. Strong presence and project management skills, with ability to balance multiple deliverables simultaneously. Experience writing for digital channels such as a blog, professional social media accounts, website or other digital channels preferred. Web or Graphic Design background is preferred. Experience designing and managing a blog or website using a content management system (ex: WordPress, SharePoint, etc.) is preferred Other: Good analytical, communication, and human relations skills. Adaptable and flexible. Ability to work effectively as part of a team. Strong Microsoft Office skills preferred, especially in MS Excel (data, chart creation, etc.). Previous internship or co-op experience is preferred Additional Information Ameren's selection process includes a series of interviews and may include candidate testing and/or an individual aptitude or skill-based assessment. Specific details will be provided to qualified candidates. Compensation: We take into consideration a variety of factors including, but not limited to, skills, abilities, experience, education, credentials, and internal equity when determining the salary offered. $19.00 - $29.00If end date is listed, the posting will come down at 12:00 am on that date:Monday April 20, 2026 All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, ethnicity, age, disability, genetic information, military service or status, pregnancy, marital status, sexual orientation, gender identity or expression, or any other class, trait, or status protected by law.

Services (B&CS) Ameren Services provides administrative support and services to Ameren Corporation and its operating companies, subsidiaries and affiliates. Ameren Services includes a wide range of skill sets and roles, from finance and legal experts to digital and cyber specialists, plus those charged with ensuring environmental compliance and operational safety. Together, we help execute a strategy that enables Ameren to deliver superior long-term value to customers, shareholders and the environment. Our benefits include: Medical coverage on date of hire 100% employer paid cash balance pension plan 401(k) with company match fully vested on date of hire Minimum of 15 days paid vacation and 12 paid holidays Paid parental leave and family caregiver leave Visit our Benefits & Perks Page for more information on benefits provided to regular full-time employees. The Auditor II works closely with all levels of management to perform audits of the Company's operations and projects, focusing on those that support strategic initiatives and business plans. The Auditor assesses the effectiveness of business processes and internal controls associated with the company's key business programs, corporate governance, risk management, and business planning. Key responsibilities include: Conduct financial and operational reviews to evaluate compliance with policies, processes, and controls prescribed by management and applicable regulations (e.g., Sarbanes-Oxley). Execute reviews according to audit plan scope, objectives, timing, and deliverables. Collaborate with management and process owners to identify and evaluate current business, cybersecurity, and operational risks and priorities against the related processes and controls. Communicate the audit status and findings to key stakeholders and assist management in developing action plans to address the root cause and improve operations. Assist audit teams on evaluating processes and controls supporting business initiatives, process redesign, or other special projects. Support Senior and Lead Auditors in risk assessment activities, including evaluating project, operational, regulatory, and cyber risks, identifying emerging risks, and developing the audit program objectives. Represent the department in various process owner meetings and serve as a subject matter expert in audit execution activities. Collaborate with the external auditing firm on the timing and scope of work. Apply critical judgment, strong analytic skills, and sound independent decision-making. Display strong presentation, verbal, and written communication skills. Qualifications - Auditor II Bachelor's Degree (preferably in Accounting, Finance, Business Administration, Computer Science or business-related field) from an accredited college or university required. Advanced college degree preferred. One or more years of relevant experience in external or internal auditing required. Experience with Sarbanes-Oxley compliance and/or business risk assessment in a regulated environment preferred. Experience with data analytics and/or automation preferred. Public accounting or audit experience preferred. Qualifications - Senior Auditor Bachelor's Degree (preferably in Accounting, Finance, Business Administration, Computer Science or business related field) from an accredited college or university required. Advanced college degree preferred. Three or more years of relevant experience in external or internal auditing required. Experience with Sarbanes-Oxley compliance and/or business risk assessment in a regulated environment preferred. Public accounting or audit experience preferred. Qualifications - Lead Auditor Bachelor's Degree from an accredited college or university required, preferably in Accounting, Finance, Business Administration, Information Systems, Computer Science, Engineering, or business related field. Advanced college degree preferred. Five or more years of relevant experience in external or internal auditing, IT related field, project management (e.g., scheduling or controls), or engineering required. Experience with Sarbanes-Oxley compliance and/or business risk assessment preferred. In addition to the above qualifications, the successful candidate will demonstrate: Auditor II - Professional certification such as CPA, CIA, CISA, CFE, PMP, or similar certification OR the ability to meet the certification requirement within twenty-four (24) months is required. Proficiency in internal auditing professional standards preferred. Senior Auditor & Lead Auditor - Professional certification such as CPA, CIA, CISA, CFE, or similar certification required. Proficiency in internal auditing professional standards required. Additional Information Ameren's selection process includes a series of interviews and may include a leadership assessment process. Specific details will be provided to qualified candidates. #LI-Hybrid Compensation Range: $71,100.00 - $144,500.00 * This pay range encompasses multiple levels of the role. Career level and compensation depends upon applicant's credentials. At Ameren, base salary is one component of a competitive compensation package for employees. Our pay ranges are broad to allow for movement within our organization and to accommodate different skill sets and levels of expertise. We take into consideration a variety of factors including, but not limited to, skills, abilities, experience, education, credentials, and internal equity when determining the base salary offered. Roles are eligible for additional rewards including annual incentive payments based on individual and company performance. If end date is listed, the posting will come down at 12:00 am on that date: All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, ethnicity, age, disability, genetic information, military service or status, pregnancy, marital status, sexual orientation, gender identity or expression, or any other class, trait, or status protected by law.

Missouri Ameren Missouri has been providing electric and gas service for more than 100 years, and our electric rates are among the lowest in the nation. Ameren Missouri's mission is to power the quality of life for our 1.2 million electric and 132,000 natural gas customers in central and eastern Missouri. Our service area covers 64 counties and more than 500 communities including the greater St. Louis area. Our benefits include: Medical coverage on date of hire 100% employer paid cash balance pension plan 401(k) with company match fully vested on date of hire Minimum of 15 days paid vacation and 12 paid holidays Paid parental leave and family caregiver leave Visit our Benefits & Perks Page for more information on benefits provided to regular full-time employees. About The Position The Supervisor, Laboratory supports the operations of the Ameren Missouri laboratory in the role of a supervisor and chemist. Key responsibilities include: ●Report and interpret analytical results, analyze facility problems, provide recommendations, and approve data and technical reports. ●Investigate and solve problems with analytical instruments (including ICP, IC, ICPMS, IR, GC, and HPLC) and methodology. ●Develop analytical methods, procedures, and business processes for the laboratory to ensure accuracy of testing results, efficient and cost-effective utilization of resources, and customer satisfaction. ●Supervise chemistry technicians at the central laboratory and across the other laboratories in Ameren Missouri Power Operations. ●Review and develop training material for training laboratory technicians and others as necessary. ●Train chemistry technicians on central laboratory and plant chemistry procedures. Train chemistry technicians on power plant chemistry principals and water treating equipment operation. ●Consult with customers, including energy centers, on chemistry-related processes. ●Specify and select laboratory equipment and supplies. Qualifications Bachelor's Degree in Chemistry from an accredited college or university required. Master's Degree in Chemistry from an accredited college or university preferred. Five or more years of relevant experience in analytical chemistry required. Supervisory or team leadership experience preferred. Experience in the electric utility industry also preferred. In addition to the above qualifications, the successful candidate will demonstrate: Must be proficient in the use of PC-based applications, including spreadsheets, graphics, word processing, and database software preferred. Good analytical, communication, human relations, and customer service skills required. Must be able to wear a respirator. Must be able to operate a motor vehicle and have a valid driver's license. After preliminary review, selected applicants must take the First Line Supervisor Test and obtain a recommended status in order to be eligible for additional selection procedures (e.g., interview) designated for this position. Additional Information Ameren's selection process includes a series of interviews and may include candidate testing and/or an individual aptitude or skill-based assessment. Specific details will be provided to qualified candidates. Compensation Range: $105,100.00 - $162,900.00 At Ameren, base salary is one component of a competitive compensation package for employees. Our pay ranges are broad to allow for movement within our organization and to accommodate different skill sets and levels of expertise. We take into consideration a variety of factors including, but not limited to, skills, abilities, experience, education, credentials, and internal equity when determining the base salary offered. Roles are eligible for additional rewards including annual incentive payments based on individual and company performance. If end date is listed, the posting will come down at 12:00 am on that date: Saturday January 31, 2026 All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, ethnicity, age, disability, genetic information, military service or status, pregnancy, marital status, sexual orientation, gender identity or expression, or any other class, trait, or status protected by law.

Ameren is a leader in the energy industry, and our transformation toward more clean, renewable energy is also transforming other industries and infrastructure in our communities. As a regional company serving local customers, we not only serve our communities, we're a part of them. This isn't just a job. At Ameren, we invest in you, so you can power the quality of life you want. Visit our Benefits & Perks Page for more information on benefits provided to regular, full-time employees. About The Position Ameren Services provides administrative support and services to Ameren Corporation and its operating companies, subsidiaries and affiliates. Nearly 1,400 employees serve the company with business planning, communications, inclusion, financial support, human resources, information technology, legal counsel, safety and supply services. The candidate will work on-site at Ameren HQ and interface with external stakeholders and co-workers onsite, over TEAMS virtually, and possible in off-site meetings. May - December 2026 Fall Co-Op Key responsibilities include: * Supports the daily operations of Ameren's Sustainability, Community and Inclusion team, which have recently merged under the "SCI" umbrella under the leadership of Ameren's Chief Sustainability Officer. * Responsibilities for the candidate will be divided by approximately 1/3 time invested with each department, either per week or on a rotational basis (TBD). * Activities may include Environmental, Social, Governance (ESG) benchmarking/research, ESG voluntary reporting support, and/or support with Energy Affordability initiatives; Upgrade and maintenance of the inclusive engagement team webpage and SharePoint site, assistance with implementing inclusive engagement employee and community outreach efforts, and collaborating on equity projects; Collecting and distilling post-grant and post-sponsorship data, and collating information to inform graphs, editorial, and stronger nonprofit partner relationships, and supporting corporate campaigns like United Way or other co-worker-involved fundraising activities. Qualifications Education: Must be a current student pursuing a Bachelors or Masters from an accredited college or university required. Human Resources, Digital Communications, Marketing, or Design major is preferred. A cumulative GPA of 2.5 is required. Experience: Aptitude for collecting data points and reasoning to find commonalities and outliers. Strong presence and project management skills, with ability to balance multiple deliverables simultaneously. Experience writing for digital channels such as a blog, professional social media accounts, website or other digital channels preferred. Web or Graphic Design background is preferred. Experience designing and managing a blog or website using a content management system (ex: WordPress, SharePoint, etc.) is preferred Other: Good analytical, communication, and human relations skills. Adaptable and flexible. Ability to work effectively as part of a team. Strong Microsoft Office skills preferred, especially in MS Excel (data, chart creation, etc.). Previous internship or co-op experience is preferred Additional Information Ameren's selection process includes a series of interviews and may include candidate testing and/or an individual aptitude or skill-based assessment. Specific details will be provided to qualified candidates. Compensation: We take into consideration a variety of factors including, but not limited to, skills, abilities, experience, education, credentials, and internal equity when determining the salary offered. $19.00 - $29.00 If end date is listed, the posting will come down at 12:00 am on that date: Monday April 20, 2026 All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, ethnicity, age, disability, genetic information, military service or status, pregnancy, marital status, sexual orientation, gender identity or expression, or any other class, trait, or status protected by law.

Ameren is a leader in the energy industry, and our transformation toward more clean, renewable energy is also transforming other industries and infrastructure in our communities. As a regional company serving local customers, we not only serve our communities, we're a part of them. This isn't just a job. At Ameren, we invest in you, so you can power the quality of life you want. Visit our Benefits & Perks Page for more information on benefits provided to regular, full-time employees. Job Description Planning, Quality Management, Procurement Projects, Inventory, Supplier Diversity, Contracting and other Supply Chain related functions. Coaching and feedback are a key part of your intern experience and an assigned mentor that will guide you through your internship. You will have the opportunity to work and gain hands-on experience on Ameren's Supply Chain team! This is a full-time position during the summer from May to Aug 2026 Interns will be working primarily with a member of the Supply Chain group and will support sourcing processes, transformation initiatives, category management and other supply chain activities. As an intern you will assist in various Supply Chain initiatives which could include developing should-cost financial and economic models, supplier and market intelligence, assisting in request for proposal development and analysis, gathering data for demand planning and process improvements or assisting in inventory/material processes. Measurable Objectives: Interns will be measured against completion of the assigned tasks, including the timing, quality, and character of work performed. Expected Major Contributions: Interns will be given a key project deliverable to execute and present to Executives at the end of the summer internship program. In addition, interns will assist in Supply Chain Group meetings, expected project delivery, and service goals. Expected Benefits to Intern: The intern's analytical and negotiation skills will be exercised in real business situations. Intern will experience the roles and responsibilities by participating in Ameren Supply Chain activities. Qualifications Student status (graduate or undergraduate) in a business or technical program from an accredited college or university with a minimum GPA of 2.5 on a 4 point scale is required. Course work or concentration in Economics, Finance, Computer Science, Supply Chain Management, Engineering, Math, or Data Analytics preferred. Completed course work through the junior level with a GPA of 3.0 or higher preferred. In addition to the above qualifications, the successful candidate will have: Basic understanding of analytical and statistical approaches to problem solving and financial accounting experience. Good understanding of Access, Excel, PowerPoint, and Word. Candidates must be able to demonstrate strong analytical, communication, and teamwork skills in additional to a high level of initiative. Previous experience in the supply chain area is a plus. Location Ameren Supply Chain is located in St. Louis, Missouri. This opportunity is a hybrid work model. If you are selected for an intern position, please note that Ameren does offer a housing stipend to interns and co-ops who are temporarily relocating, if minimum housing stipend requirements (living & attending school 50+ miles away from your working location) are met. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, ethnicity, age, disability, genetic information, military service or status, pregnancy, marital status, sexual orientation, gender identity or expression, or any other class, trait, or status protected by law. Compensation: We take into consideration a variety of factors including, but not limited to, skills, abilities, experience, education, credentials, and internal equity when determining the salary offered. $19.00 - $29.00If end date is listed, the posting will come down at 12:00 am on that date:Monday February 23, 2026 All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, ethnicity, age, disability, genetic information, military service or status, pregnancy, marital status, sexual orientation, gender identity or expression, or any other class, trait, or status protected by law.

Missouri Ameren Missouri has been providing electric and gas service for more than 100 years, and our electric rates are among the lowest in the nation. Ameren Missouri's mission is to power the quality of life for our 1.2 million electric and 132,000 natural gas customers in central and eastern Missouri. Our service area covers 64 counties and more than 500 communities including the greater St. Louis area. Our benefits include: Medical coverage on date of hire 100% employer paid cash balance pension plan 401(k) with company match fully vested on date of hire Minimum of 15 days paid vacation and 12 paid holidays Paid parental leave and family caregiver leave Visit our Benefits & Perks Page for more information on benefits provided to regular full-time employees. About The Position The Instrumentation and Controls (I&C) Engineer is responsible for overall I&C Engineering related to the execution of projects for new natural gas combined cycle (NGCC) and new simple cycle gas turbine (SC) energy centers, along with existing fossil, gas turbine, hydroelectric, and renewable energy centers for Ameren Missouri. This role includes providing technical expertise in I&C Engineering to help lead project development in association with Ameren Power Operations and Company-wide design and project management requirements. The I&C Engineer will report to the Manager, New Gas Generation. Key responsibilities include: Contribute to the team of professional / technical staff in all phases of one or more new gas generation projects by providing technical support on a variety of topics related to the I&C fields of expertise. Plan, schedule, prioritize and coordinate activities to assure that assignments are completed in a high quality and timely manner, as directed by the Manager. Provide sound engineering recommendations and solutions for assignments taking into consideration safety, customer affordability, conservative operations, Ameren Missouri Power OPS design standards, internal Ameren stakeholders, and outside engineering expertise. Interface with outside engineers, vendors, contractors, suppliers, governmental and regulatory agencies, as well as other groups with the Company in performance of tasks as needed. Provide guidance, review, and QA / QC of outside engineer, contractor, and vendor I&C work. Lead by example by following and setting expectations for high quality work on critical design elements from external stakeholders. Provide on-site support as directed during all phases of Energy Center project design, construction, start-up, and testing. Participate on and interface with Ameren teams, as required. Keep abreast of state-of-the-art developments and improvements for gas turbine-generator and auxiliaries I&C technology. I&C engineering specific responsibilities will include but are not limited to: DCS control systems, PLC control systems, logic / programming, networking / Operational Technology interfacing, NERC CIP / Cybersecurity, RTU's, remote operations, communications, process measurement elements (flow, pressure, etc.), UPS, and PID tuning. Qualifications Bachelor of Science Degree in Electrical or Computer Engineering from an ABET accredited college or university is required. A Bachelor of Science Degree in Mechanical Engineering with relevant Generation I&C design experience may also be considered. Five or more years I&C design engineering experience for Power Generation facilities in the applicable areas listed under "Key Responsibilities" is preferred. Experience with combined and simple cycle plants, gas turbines, turbomachinery, steam generators or other energy center mechanical or environmental systems preferred. Experience with large project execution preferred. A Missouri Professional Engineer (PE) license is preferred but not required. Essential Functions Time spent on site during construction and start-up will be required. This will include exposure to heat and cold temperatures, vicinity to high energy equipment (electrical, controlled combustion, etc), dust, safe use of electrical / other PPE, and climbing of ladders and steps. Employing safe work practices at all times is a must. Travel to and from outside engineer, vendor, and contractor offices will be required (including overnight and international travel at times) for design reviews, factory acceptance test witnessing, and engineering quality inspections. In addition to the above qualifications, the successful candidate will demonstrate: Must have demonstrated excellent engineering design, analytical, communications, flexibility, and human relations skills. Additional Information Ameren's selection process includes a series of interviews and may include candidate testing and/or an individual aptitude or skill-based assessment. Specific details will be provided to qualified candidates. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, ethnicity, age, disability, genetic information, military service or status, pregnancy, marital status, sexual orientation, gender identity or expression, or any other class, trait, or status protected by law. *Salary depends upon individual credentials, experience, and/or engineer technical path and position market pay level Compensation Range: $71,100.00 - $172,200.00 * This pay range encompasses multiple levels of the role. Career level and compensation depends upon applicant's credentials. At Ameren, base salary is one component of a competitive compensation package for employees. Our pay ranges are broad to allow for movement within our organization and to accommodate different skill sets and levels of expertise. We take into consideration a variety of factors including, but not limited to, skills, abilities, experience, education, credentials, and internal equity when determining the base salary offered. Roles are eligible for additional rewards including annual incentive payments based on individual and company performance. If end date is listed, the posting will come down at 12:00 am on that date: Monday January 26, 2026 All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, ethnicity, age, disability, genetic information, military service or status, pregnancy, marital status, sexual orientation, gender identity or expression, or any other class, trait, or status protected by law.

Missouri Ameren Missouri has been providing electric and gas service for more than 100 years, and our electric rates are among the lowest in the nation. Ameren Missouri's mission is to power the quality of life for our 1.2 million electric and 132,000 natural gas customers in central and eastern Missouri. Our service area covers 64 counties and more than 500 communities including the greater St. Louis area TITLE: REPAIRMAN ORGANIZATION UNIT: Power Operations, Power Plants APPLICABLE TO: Fossil Fuel Plants DUTIES: Under direct, indirect, or intermittent supervision, and working on a rotating shift schedule or day schedule as required, to do a general range of electric arc and gas welding and cutting, brazing, pipefitting and insulation installation and/or removal on all varieties of power plant equipment. Immediate responsibility at times for the working direction of an apprentice. Work includes a general range of electric and gas welding on power plant equipment including structural steel erection and piping where certification is not required. In addition, to perform other maintenance work on heavy mechanical equipment, such as replacement of liner plates in fans, coal chutes and hoppers; welding repairs to castings and equipment; fitting and welding of all sizes of piping and valves, including items such as measuring, laying out, cutting, threading, bending, fitting and installation of pipe and tubing, replacement of flange, valve, and heater gaskets; valve repacking, repair and overhaul; cleaning and replacement of condenser and heat exchanger tubes; where applicable, repair of traveling water screens. Refractory and insulation work includes items such as but not limited to furnace wall insulation and protective covering; insulation coverings on furnace wall fire side linings, slag tanks and hoppers; gas and hot air ducts and breeching; precipitator casings, main, reheat, and extraction steam lines; boiler feed piping; steam and condensate drains; feedwater heaters and storage tanks; turbine casings, steam chests and valves. In connection with this work: Take welder qualification tests as required. Work from drawings and sketches. Check (including Workman's Protection Assurance where appropriate) to insure that equipment to be worked on has been properly isolated and protected. Obtain required materials from storeroom. Set up rigging and operate lifting equipment. Erect and work from scaffolds. Operate and/or use mobile equipment, shop equipment, portable power tools, other portable tools, hand tools and test equipment as required to accomplish assigned jobs. Prepare reports of work done accompanied by sketches, if necessary; complete such forms as may be required. Repairman (continued) 3252 - Repairman 8/11/85 3352 - PPM Repairman Page 2 of 3 3354 - Plant / PPM Repairman Apprentice Work alone or in combination with other Repairman (Certified) or Repairman classifications when assigned. Do similar and less skilled work as required. SPECIAL RESPONSIBILITIES: For carrying out prescribed safety precautions and safeguards for the protection of himself and others. When necessary, check for explosive gases before operating torches. For observing and insuring that those temporarily under his direction observe safety instructions issued or applicable. For performing work without disturbing other equipment. For executing orders quickly and properly. For accuracy of work within required tolerances or specifications. For special care and watchfulness to avoid errors in the repair and assembly of equipment. For proper use and care of a wide variety of tools, material, and equipment. For disposition of surplus and scrap materials after each job and keeping areas where work is performed clean and orderly to maintain an atmosphere conducive to good work practices and safety. CONTACTS: With Plant Operations, Maintenance, and Storeroom supervision and personnel. WORKING CONDITIONS: Full range of temperatures from very hot to sub-freezing. Sometimes sudden changes from one extreme to the other. Subject to noise, dusts, dirt, fumes, odors, drafts, and inclement weather. Work at times in cramped and artificial light is frequently necessary. HAZARDS: Subject to hazards existing from possible failure of nearby equipment; to danger from falling while working at elevations above grade, to burns from hot metal, piping or slag; to eye injury from arc flashes; or from any relaxation of the constant care to observe all required safety rules; and to the usual hazards encountered in mechanical construction and maintenance work. Occasionally exposed to noxious fumes in confined places. Repairman (continued) 3251 - Certified Repairman 8/11/85 3351 - PPM Certified Repairman Page 3 of 3 3353 - Plant / PPM Certified Repairman Apprentice QUALIFICATIONS: Qualification standards as established in the Apprenticeship Program. In event no graduating apprentice is available: Must satisfy requirements as prescribed in the Supplementary Agreement on Uniform Practices Regarding Promotion to Repairman Jobs. Must be accurate, steady and calm in emergencies; possess normal physical strength and endurance; and have no color deficiency in vision. Hourly Pay: Grade Step OA 048 Step 1 of 1 (Top Step) - 52.42 USD Position is eligible for annual incentive payments based on company performance and subject to sole management discretion. Visit our Benefits & Perks Page for more information on benefits provided to regular full-time employees. If end date is listed, the posting will come down at 12:00 am on that date: All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, ethnicity, age, disability, genetic information, military service or status, pregnancy, marital status, sexual orientation, gender identity or expression, or any other class, trait, or status protected by law.

Services (B&CS) Ameren Services provides administrative support and services to Ameren Corporation and its operating companies, subsidiaries and affiliates. Ameren Services includes a wide range of skill sets and roles, from finance and legal experts to digital and cyber specialists, plus those charged with ensuring environmental compliance and operational safety. Together, we help execute a strategy that enables Ameren to deliver superior long-term value to customers, shareholders and the environment. Our benefits include: Medical coverage on date of hire 100% employer paid cash balance pension plan 401(k) with company match fully vested on date of hire Minimum of 15 days paid vacation and 12 paid holidays Paid parental leave and family caregiver leave Visit our Benefits & Perks Page for more information on benefits provided to regular full-time employees. About the Team: The Electric Project Management Team procures and manages contractor support for electric transmission projects and larger scale electric distribution projects in the acquisition of easements and other rights and in general support of these projects from start to finish. This candidate may participate in public open houses and provide testimony for state certification or eminent domain proceedings with support and guidance from others. About The Position The Real Estate Agent negotiates and successfully closes non-complex purchases and sales of real estate in fee, and negotiates and acquires routine easements, contracts, leases, rentals, permits, licenses, and agreements in their assigned portfolio supporting a specific area of the Real Estate business model. Key responsibilities include: Research property rights through a variety of internal and external sources. Obtain legal or deed descriptions, and real estate market data from public records. Review appraisals and/or prepare opinions and recommendations of Fair Market Value of property for the purposes of the purchase and sale of fee property interests, and in acquiring and granting easements, leases, licenses, permits and construction-related damages. Gather title work materials to determine or cause to be determined appropriate ownership information for individually assigned projects or in support of higher-level projects as assigned. Examine and comprehend title policies, certificates or commitments, and abstracts of title. Investigate and review quantitative site and route selection analysis for land purchases, partial acquisitions, and/or leasing opportunities and to make recommendations regarding same. Successfully negotiate and prepare legal instruments using Real Estate's standard form documents (templates) only, for the disposal of fee property interests, easements, leases, licenses, permits, agreements, and property damages. Interpret and assess the regulations of municipal, county, state and federal jurisdictions and commissions to negotiate with elected and appointed officials in determining corporate compliance requirements. Read and comprehend engineering drawings and plans. Learning organizational processes, tools and functional roles while further developing technical expertise in both Project Management and Functional areas. Begin making innovative yet practical suggestions for improving work processes across all functional areas in the organization. Will assist with testing and verifying new, innovative, or improved processes or systems. Testify and assist in the preparation of testimony before courts of law, municipal bodies, jurisdictional authorities and commissions. Assist in the acquisition and sale of real estate. Qualifications: Bachelor's degree from an accredited college or university required, preferably in Business, Economics, Engineering, Management, or Real Estate. Three years of relevant real estate experience required. Non-residential real estate experience strongly preferred. May consider four years relevant experience in lieu of Bachelor's Degree, in addition to the three years of required relevant real estate experience. Sr. Real Estate Agent Key responsibilities include: Create or request proper legal or deed descriptions and obtain real estate market data from public records. Read, comprehend, and suggest revisions, where appropriate, to engineering drawings and plans. Read, understand and communicate property valuation information to landowners, as contained in formal real estate appraisals prepared by professional certified appraisers for the purposes of the purchase and sale of fee property interests, and in acquiring and granting easements, leases, licenses, permits and construction-related damages. Gather title work materials to determine or cause to be determined appropriate ownership information for individually assigned projects or in support of higher-level projects as assigned. Examine and comprehend title policies, certificates or commitments, and abstracts of title. Investigate and review quantitative site and route selection analysis for land purchases, partial acquisitions and/or leasing opportunities and to make directionally correct decisions regarding same. Successfully negotiate and prepare legal instruments for the acquisition or disposal of fee property interests, easements, leases, licenses, permits, agreements, and property damages. Role may require working directly with Ameren Legal Department or other stakeholder groups on document revisions and language changes to the standard form document. · Interpret and assess the regulations of municipal, county, state and federal jurisdictions and commissions to assign the correct Ameren Real Estate resource to negotiate with elected and appointed officials (or their staff) in determining permitting and zoning compliance requirements. Occasionally provide testimony on behalf of the company in eminent domain proceedings and other legal matters, when required. Understands organizational processes, tools, and functional roles along with in-depth technical expertise in assigned job function. Recommend innovative yet practical solutions for improving work processes across all functional areas in the organization and champions learning while driving results. Collaborate in preparing required real estate documents and/or evidence in support of ICC, PSC, FERC, or other regulatory body governing company projects. Provide scope definition, cost management, schedule development, change management, stakeholder engagement, risk identification and risk management for assigned projects. Direct and manage project budget, review and approve invoices, develop project cash flows, revise project budget and forecasts as needed. Lead and manage contractor personnel and business lines engaged in real estate activities. Qualifications: Bachelor's degree from an accredited college or university required, preferably in Business, Economics, Engineering, Management, or Real Estate. Five years of relevant real estate experience required. Non-residential real estate experience strongly preferred. May consider four years relevant experience in lieu of Bachelor's Degree, in addition to the five years of required relevant real estate experience. In addition to the above qualifications, the successful candidate will demonstrate: Proficiency with Microsoft Word, Excel, Project and PowerPoint required. Good understanding of law, engineering, surveying, appraisals and contracts also required. Additional Information Ameren's selection process includes a series of interviews and may include a leadership assessment process. Specific details will be provided to qualified candidates. Compensation Range: $71,100.00 - $137,200.00 * This pay range encompasses multiple levels of the role. Career level and compensation depends upon applicant's credentials. At Ameren, base salary is one component of a competitive compensation package for employees. Our pay ranges are broad to allow for movement within our organization and to accommodate different skill sets and levels of expertise. We take into consideration a variety of factors including, but not limited to, skills, abilities, experience, education, credentials, and internal equity when determining the base salary offered. Roles are eligible for additional rewards including annual incentive payments based on individual and company performance. If end date is listed, the posting will come down at 12:00 am on that date: Friday January 09, 2026 All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, ethnicity, age, disability, genetic information, military service or status, pregnancy, marital status, sexual orientation, gender identity or expression, or any other class, trait, or status protected by law.

Services (B&CS) Ameren Services provides administrative support and services to Ameren Corporation and its operating companies, subsidiaries and affiliates. Ameren Services includes a wide range of skill sets and roles, from finance and legal experts to digital and cyber specialists, plus those charged with ensuring environmental compliance and operational safety. Together, we help execute a strategy that enables Ameren to deliver superior long-term value to customers, shareholders and the environment. Our benefits include: Medical coverage on date of hire 100% employer paid cash balance pension plan 401(k) with company match fully vested on date of hire Minimum of 15 days paid vacation and 12 paid holidays Paid parental leave and family caregiver leave Visit our Benefits & Perks Page for more information on benefits provided to regular full-time employees. About The Position The Legal Assistant performs complex, legal, secretarial, and other administrative activities, which may be highly confidential and sensitive, accomplishing work using standard procedures with moderate guidance. Serves as liaison between attorneys and office staff, in-house Ameren clients and outside Legal Counsel. Coordinates administrative support activities. This position will provide support to specific legal practice groups/teams within the Ameren Legal Services Department. Key responsibilities include: Providing assistance to legal department directors, team attorneys and related personnel (paralegals, claims representatives, etc.) for highly confidential company matters. Participation in rotating schedule as on-site legal assistant, handling on-site departmental needs including opening/delivering and logging incoming legal department mail items, as well as coordinating departmental collaboration events or catering. Organization and maintenance of electronic and hard copy documents and files, assistance with records review and retention projects, including service as a records custodian. Creating and maintaining matters in the legal matter management system (CounselLink) and processing legal department invoices through e-billing program (CounselLink), including first-line review of invoices in accordance with agreed upon billing guidelines. Processing invoices and/or other check requests outside of CounselLink, through Oracle, submitting requests for setup of new suppliers in accounting system prior to payment requests, and monitoring status of supplier setup and payments. Preparing and processing expense reports for travel/mileage or other business expenses incurred on company credit card, through Oracle. Tracking and coordinating attorneys' calendars, including scheduling meetings and activities, coordinating travel arrangements, and docketing/monitoring deadlines, as well as other activities between in-house counsel, internal clients and outside counsel. Assisting with preparing, revising and proofreading legal documents, agreements, contracts, correspondence or court filings for correct grammar, spelling, punctuation, format, syntax, and content before sending outside of the department/company or filing. Providing support for administrative matters and internal reports (weekly reports, quarterly KPIs, etc.), Assisting with CLEs, licensing requirements and annual membership renewals for team attorneys. Qualifications Associate degree or higher with three (3) or more years of legal secretary experience required, in lieu of a degree, a High school diploma or equivalent with five (5) or more years of relevant clerical experience required. In addition to the above qualifications, the successful candidate will demonstrate: Knowledge of filing systems, legal terminology and syntax, content, organization, office technologies, and format of legal documents and correspondence. Ability to compose correspondence and reports, select and apply references such as dictionaries, English usage manuals, legal references and procedures manuals required. Skilled typing ability and knowledge of personal computers, software (includes complete "Office Suite" i.e. Office 365, Power Point, Excel, SharePoint), and related applications and systems preferred. Ability to follow complex instructions, apply instructions and/or guidelines as appropriate in the performance of support activities, maintain composure during stressful situations occurring as a result of workloads and/or deadlines required. Ability to perform mathematical calculations, transcribe documents from written, oral, or computer-generated formats, interpret instructions and guidelines in order to make decisions and take necessary actions, and determine work priorities also required. Financial acumen to assist in budgeting and invoicing activities. Experience with Westlaw or LexisNexis preferred. Additional Information Ameren's selection process includes a series of interviews and may include candidate testing and/or an individual aptitude or skill-based assessment. Specific details will be provided to qualified candidates Compensation Range: $53,500.00 - $77,600.00 At Ameren, base salary is one component of a competitive compensation package for employees. Our pay ranges are broad to allow for movement within our organization and to accommodate different skill sets and levels of expertise. We take into consideration a variety of factors including, but not limited to, skills, abilities, experience, education, credentials, and internal equity when determining the base salary offered. Roles are eligible for additional rewards including annual incentive payments based on individual and company performance. If end date is listed, the posting will come down at 12:00 am on that date: Friday January 16, 2026 All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, ethnicity, age, disability, genetic information, military service or status, pregnancy, marital status, sexual orientation, gender identity or expression, or any other class, trait, or status protected by law.

Ameren is a leader in the energy industry, and our transformation toward more clean, renewable energy is also transforming other industries and infrastructure in our communities. As a regional company serving local customers, we not only serve our communities, we're a part of them. This isn't just a job. At Ameren, we invest in you, so you can power the quality of life you want. Visit our Benefits & Perks Page for more information on benefits provided to regular, full-time employees. About The Position The Safety Intern (Ameren Safety) is responsible for providing support to Ameren business segments to assist in the reduction of injuries and illnesses with a focus on soft-tissue and ergonomic risk reduction. The intern will employ a variety of scientific techniques and problem solving skills to ensure that the design of systems, tasks, equipment and facilities provide the best level of health and safety for co-workers. Available Opportunities: May-August 2026 Internship Key responsibilities include: Analysis of soft tissue injury records to identify trends for targeted analysis and interventions. Analysis of the interaction between co-workers and machinery/equipment. Assessing the effect of work environments on co-workers. Identifying possible improvements and assisting with implementation. Offer information, advice and recommendations to Ameren Safety department. Compiling and presenting professional information in reports and verbally Liaising with other professionals in Ameren Safety, health specialists and designers. Assisting in the investigation of soft tissue injuries and illnesses. Qualifications Pursuing a Bachelor's degree in safety, industrial hygiene or ergonomics in an accredited program required with a GPA of 2.5 or above.. The Safety Intern works a standard work week in an office and field environment. This position may require occasional overtime (evenings, weekends) that may involve overnight travel. This position may also be expected to provide support during outages, storms, or other emergencies as required which may require working extended hours, weekends and holidays. A valid driver's license and vehicle is also required. It is preferred the selected candidate reside in the St. Louis Metropolitan area or Missouri, Illinois and Iowa and be willing to travel. In addition to the above qualifications, the successful candidate will demonstrate: Proficiency with MS Office preferred. Strong analytical, problem-solving, communication, and interpersonal skills also required. Work with direct supervision and participate in a geographically dispersed team environment often requiring virtual meetings. Working knowledge of OSHA and other regulatory agency standards required. Additional Information Ameren's selection process includes a series of interviews and may include a leadership assessment process. Specific details will be provided to qualified candidates. Compensation: We take into consideration a variety of factors including, but not limited to, skills, abilities, experience, education, credentials, and internal equity when determining the salary offered. $19.00 - $29.00If end date is listed, the posting will come down at 12:00 am on that date:Monday March 30, 2026 All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, ethnicity, age, disability, genetic information, military service or status, pregnancy, marital status, sexual orientation, gender identity or expression, or any other class, trait, or status protected by law.

Missouri Ameren Missouri has been providing electric and gas service for more than 100 years, and our electric rates are among the lowest in the nation. Ameren Missouri's mission is to power the quality of life for our 1.2 million electric and 132,000 natural gas customers in central and eastern Missouri. Our service area covers 64 counties and more than 500 communities including the greater St. Louis area. Our benefits include: Medical coverage on date of hire 100% employer paid cash balance pension plan 401(k) with company match fully vested on date of hire Minimum of 15 days paid vacation and 12 paid holidays Paid parental leave and family caregiver leave Visit our Benefits & Perks Page for more information on benefits provided to regular full-time employees. About The Position The Power Supply Coordinator is responsible for oversight and dispatch of all Ameren Missouri generation assets, and maintains continuous real-time operations interface with Ameren Missouri generation assets and the Midcontinent Independent System Operator (MISO) Generation Balancing Authority Operator. The Power Supply Coordinator is also responsible for remote operation of Ameren Missouri's combustion turbine generator (CTG) fleet in accordance with the Remote Operations Procedure, and in accordance with Ameren's standards for asset preservation and conservative operations Key responsibilities include: ● Dispatch generation assets in accordance with MISO setpoint instructions and wholesale market price signals, and ensure that generators are following MISO setpoint instructions. ● Manage generator performance and know the maximum/minimum generation capabilities, ramp rates, equipment limitations, unit reliability issues, and other general status information for all Ameren Missouri generation assets. ● Maintain and update real-time offer parameters to MISO based on changes in unit or equipment capabilities. Obtain and manage overrides of unit offer parameters as needed for real-time operating conditions. ● Maintain communication paths to plant control rooms, and coordinate changes in operational capabilities with unit operators. Communicate with and inform the Transmission Operations Supervisor of all significant generation events. ● Be fully aware of market conditions at all Ameren Missouri generation nodes, and coordinate all activities for real-time dispatch of Ameren Missouri generation assets. ● Operate Ameren Missouri's CTG fleet within specified operating parameters and other instructions issued by the CTG Group. ● Start and stop CTG units in accordance with MISO awards and commitments, and in coordination with real time market decisions from the Real Time Trader and Power Supply Supervisor. ● Operate units to maintain the Voltage Schedule published by Ameren Transmission Operations, and monitor generator output to ensure operation stays within the generator capability curve. ● Continuously monitor the CTG Alarm Application, take appropriate and required actions to preserve the generation assets, and make timely notifications to appropriate entities. Qualifications Bachelor's degree in engineering, business, science, technology or other relevant disciplines from an accredited college or university is required. Significant experience in power plant operations, power plant maintenance, generation dispatching, MISO Market operations, or transmission system operations in lieu of a degree will be considered. Five or more years of experience in power plant operations, generation dispatching, MISO market operations, analysis, trading, and/or settlements is required. Detailed knowledge of the MISO markets is preferred. In addition to the above qualifications, the successful candidate will demonstrate: The Power Supply Coordinator position is staffed around the clock, and the successful candidate must be able to work a 12 hour rotating shift schedule. Strong verbal and written communication skills, as well as analytical, computer, and problem solving skills are required. Must be highly detail oriented, able to multi- task, and able to manage high pressure situations. Proficiency with Microsoft Excel and Word required. Proficiency with PI ProcessBook is preferred. This position requires completion of an employee background check per North American Electric Reliability Council (NERC) guidelines, and the successful candidate must obtain NERC System Operator Certification within six (6) months of start date. Additional Information Ameren's selection process includes a series of interviews and may include a leadership assessment process. Specific details will be provided to qualified candidates. Compensation Range: $105,100.00 - $162,900.00 At Ameren, base salary is one component of a competitive compensation package for employees. Our pay ranges are broad to allow for movement within our organization and to accommodate different skill sets and levels of expertise. We take into consideration a variety of factors including, but not limited to, skills, abilities, experience, education, credentials, and internal equity when determining the base salary offered. Roles are eligible for additional rewards including annual incentive payments based on individual and company performance. If end date is listed, the posting will come down at 12:00 am on that date: Saturday January 31, 2026 All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, ethnicity, age, disability, genetic information, military service or status, pregnancy, marital status, sexual orientation, gender identity or expression, or any other class, trait, or status protected by law.

Services (B&CS) Ameren Services provides administrative support and services to Ameren Corporation and its operating companies, subsidiaries and affiliates. Ameren Services includes a wide range of skill sets and roles, from finance and legal experts to digital and cyber specialists, plus those charged with ensuring environmental compliance and operational safety. Together, we help execute a strategy that enables Ameren to deliver superior long-term value to customers, shareholders and the environment. Our benefits include: Medical coverage on date of hire 100% employer paid cash balance pension plan 401(k) with company match fully vested on date of hire Minimum of 15 days paid vacation and 12 paid holidays Paid parental leave and family caregiver leave Visit our Benefits & Perks Page for more information on benefits provided to regular full-time employees. About The Position The Senior Commodity Settlement Specialist is a member of the Ameren Services Finance organization. The commodity settlements team ensures the accurate and timely settlement of over $3 billion in gross annual centralized market (Independent System Operator) transactions as well as physical and financial commodity transactions. As a member of the Settlements team, the Specialist works in a high-performing, team-based environment pursuing the goal of being the ‘center of excellence' for commodity settlements and analysis. Team members work under the direct supervision of the Supervisor, Commodity Settlements and frequently collaborate with other departments throughout the organization, including accounting, regulatory, trading, and business line leadership. Key responsibilities include: Drive continuous improvement through automating the team's manual processes. Be a subject matter expert for commodity settlements and Back Office operations. Prepare monthly operational analysis in support of trade strategies. Deliver timely and accurate commodity settlements and analysis in support of our business line partners. Understand the business drivers of profitability to resolve discrepancies discovered in the settlement process and propose agreeable solutions. Provide value-add financial and market analysis to internal customers and stakeholders. Interpret complex contracts and tariffs in order to understand and ensure accuracy of financial implications. Proactively refine data analytical tools and settlement processes to ensure they are consistent with industry best practices. Advise leadership of financial results and opportunities for continuous improvement. Advise the business lines of changing market practices and considerations for long-term opportunities. Define and adhere to Sarbanes-Oxley control standards and procedures. Collaborate with Internal and External Audit in fulfilling regulatory requirements and other control standards. Qualifications - Senior Commodity Settlement Specialist Bachelor's Degree in Business or other technical discipline from an accredited college or university required. Five or more years experience in general business, accounting, or finance required. An advanced degree or certification (e.g. MBA or CPA) is preferred and will be considered towards years of experience. Advanced IT systems experience and/or data analysis preferred. Utility and/or commodity trading experience preferred.. Experience with Sarbanes-Oxley compliance standards required. Qualifications - Lead Commodity Settlement Specialist Bachelor's Degree in Business or other technical discipline from an accredited college or university required. Seven or more years' experience in general business, accounting, or finance, with experience in financial statistical analysis and handling large datasets from various data sources is required. An advanced degree or certification (e.g. MBA or CPA) is preferred and will be considered towards years' of experience. Utility and/or commodity trading experience required. Experience with Sarbanes-Oxley compliance standards required. In addition to the above qualifications, the successful candidate will demonstrate: Excellent communication skills, including presentation, written and verbal. Ability to prioritize tasks, multi-task, and manage changing assignments in a collaborative team environment to meet critical deadlines. Problem solving and the ability to form reasoned conclusions based upon supporting data. Effectively interact with all levels of the organization and be able to make reasonable decisions with the data provided. Attention to detail and the ability to independently prioritize and manage responsibilities and monitor risks May be responsible for peer review of disbursement requests prepared by other settlement specialists before being presented for sign-off deliver presentations to the team or department. Additional Information Ameren's selection process includes a series of interviews and may include candidate testing and/or an individual aptitude or skill-based assessment. Specific details will be provided to qualified candidates. Compensation Range: $88,500.00 - $144,500.00 * This pay range encompasses multiple levels of the role. Career level and compensation depends upon applicant's credentials. At Ameren, base salary is one component of a competitive compensation package for employees. Our pay ranges are broad to allow for movement within our organization and to accommodate different skill sets and levels of expertise. We take into consideration a variety of factors including, but not limited to, skills, abilities, experience, education, credentials, and internal equity when determining the base salary offered. Roles are eligible for additional rewards including annual incentive payments based on individual and company performance. If end date is listed, the posting will come down at 12:00 am on that date: All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, ethnicity, age, disability, genetic information, military service or status, pregnancy, marital status, sexual orientation, gender identity or expression, or any other class, trait, or status protected by law.

Ameren is a leader in the energy industry, and our transformation toward more clean, renewable energy is also transforming other industries and infrastructure in our communities. As a regional company serving local customers, we not only serve our communities, we're a part of them. This isn't just a job. At Ameren, we invest in you, so you can power the quality of life you want. Visit our Benefits & Perks Page for more information on benefits provided to regular, full-time employees. Job Description It's an exciting time to be a part of the evolving energy industry! Ameren's collegiate internship and co-op program is all about providing real work experience, networking opportunities, and professional growth. Ameren Corporation is a Fortune 500 company that trades on the New York Stock Exchange under the symbol AEE. It is the parent company of Ameren Illinois, based in Collinsville, Ill., and Ameren Missouri in St. Louis. Ameren Transmission Company, also based in St. Louis, designs and builds regional transmission projects. Employing more than 9,000 personnel, Ameren powers the quality of life for 2.4 million electric customers and more than 900,000 natural gas customers across a 64,000-square-mile area. Ameren Missouri ranks as the largest electric power provider in Missouri, and Ameren Illinois ranks as Illinois' third largest natural gas distribution operation in total number of customers. This general posting will be used to collect applications for our 2026 Civil Engineer Fall Co-Op openings across the states of Illinois and Missouri. The options for collegiate employment are: May - December Co-Op Growth Potential Ameren responds to our changing industry by providing new solutions for tomorrow's energy needs. All collegiate coworkers directly impact Ameren's mission to Power the Quality of Life. Locations Ameren is located throughout Missouri and Illinois. Location decisions will be made as soon as possible during the hiring process. If you are selected for an intern or co-op position, please note that Ameren does offer a housing stipend to interns and co-ops who are temporarily relocating, if minimum housing stipend requirements (living & attending school 50+ miles away from your working location) are met. Qualifications Must be a current student pursuing a Bachelors or Masters in Civil Engineering from an accredited college or university required with a cumulative GPA of 2.5 or above. We will provide more information about each opportunity at time of interview. Compensation: We take into consideration a variety of factors including, but not limited to, skills, abilities, experience, education, credentials, and internal equity when determining the salary offered. $19.00 - $29.00If end date is listed, the posting will come down at 12:00 am on that date:Friday April 17, 2026 All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, ethnicity, age, disability, genetic information, military service or status, pregnancy, marital status, sexual orientation, gender identity or expression, or any other class, trait, or status protected by law.

Missouri Ameren Missouri has been providing electric and gas service for more than 100 years, and our electric rates are among the lowest in the nation. Ameren Missouri's mission is to power the quality of life for our 1.2 million electric and 132,000 natural gas customers in central and eastern Missouri. Our service area covers 64 counties and more than 500 communities including the greater St. Louis area TITLE: MACHINIST REPAIRMAN ORGANIZATION UNIT: Power Operations, Power Plants APPLICABLE TO: Fossil Fuel Plants DUTIES: Under direct, indirect, or intermittent supervision, and working a rotating shift schedule or day schedule as required, to do a general range of plant mechanical equipment installation, repair and overhaul, including ability to perform skilled machinist work requiring tolerances as low as +.0005". Immediate responsibility at times for working directions of an apprentice. Mechanical equipment includes items such as turbines, pumps, compressors, conveyors, pulverizers, coal samplers, feeders, pulleys, overhead cranes, soot blowers, safety valves, blowers, power transmission equipment. In connection with this work: Work from drawings and sketches. Check (including Workman's Protection Assurance where appropriate) to insure that equipment to be worked on has been properly isolated and protected. Obtain required materials from storeroom. Set up rigging and operate lifting equipment. Erect and work from scaffolds. Operate and/or use mobile equipment, shop equipment, portable power tools, other portable tools, hand tools and test equipment as required to accomplish assigned jobs. Operate acetylene or other cutting/heating torches. When necessary, check for explosive gases before operating torches. Prepare reports of work done accompanied by sketches, if necessary; complete such forms as may be required. Work alone or in combination with other Machinist Repairman or Repairman classifications when assigned. Do similar and less skilled work as required. 3259 - Machinist Repairman 8/11/85 3359 - PPM Machinist Repairman Page 2 of 3 3361 - Machinist Repairman / Turbine Crew SPECIAL RESPONSIBILITIES: For carrying out prescribed safety precautions and safeguards for the protection of himself and others. For observing and insuring that those temporarily under his direction observe safety instructions issued or applicable. For performing work without disturbing other equipment. For executing orders quickly and properly. For accuracy of work within required tolerances or specifications. For special care and watchfulness to avoid errors in the repair and assembly of equipment. For proper use and care of a wide variety of tools, material, and equipment. For disposition of surplus and scrap materials after each job and keeping areas where work is performed clean and orderly to maintain an atmosphere conducive to good work practices and safety. CONTACTS: With Plant Operations, Maintenance, and Storeroom supervision and personnel. WORKING CONDITIONS: Full range of temperatures from very hot to sub-freezing. Sometimes sudden changes from one extreme to the other. Subject to noise, dusts, dirt, fumes, odors, drafts, and inclement weather. Work at times in cramped and artificial light is frequently necessary. HAZARDS: Subject to hazards existing from possible failure of nearby equipment; to danger from falling while working at elevations above grade, or from any relaxation of the constant care to observe all required safety rules; and to the usual hazards encountered in mechanical construction and maintenance work. Occasionally exposed to noxious fumes in confined places. 3259 - Machinist Repairman 8/11/85 3359 - PPM Machinist Repairman Page 3 of 3 3361 - Machinist Repairman / Turbine Crew QUALIFICATIONS: Qualification standards as established in the Apprenticeship Program. In event no graduating apprentice is available: Must satisfy requirements as prescribed in the Supplementary Agreement on Uniform Practices Regarding Promotion to Machinist Repairman Jobs. Must be accurate, steady and calm in emergencies; possess normal physical strength and endurance; and have no color deficiency in vision. Hourly Pay: Grade Step OA 048 Step 1 of 1 (Top Step) - 52.42 USD Position is eligible for annual incentive payments based on company performance and subject to sole management discretion. Visit our Benefits & Perks Page for more information on benefits provided to regular full-time employees. If end date is listed, the posting will come down at 12:00 am on that date: All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, ethnicity, age, disability, genetic information, military service or status, pregnancy, marital status, sexual orientation, gender identity or expression, or any other class, trait, or status protected by law.

Missouri Ameren Missouri has been providing electric and gas service for more than 100 years, and our electric rates are among the lowest in the nation. Ameren Missouri's mission is to power the quality of life for our 1.2 million electric and 132,000 natural gas customers in central and eastern Missouri. Our service area covers 64 counties and more than 500 communities including the greater St. Louis area Job Description Location: Traveler, based out of Maryland Heights, MO assigned to support Energy Center in the region to include Labadie MO, and West Alton, MO Facility: Labadie Energy Center or Sioux Energy Center Summary You will perform precision welding and heavy mechanical repair work across both power plant and the equipment to support safe and efficient plant operations. Key Responsibilities * Troubleshoot and perform highly skilled electric arc and gas welding, cutting, brazing, pipefitting, and insulation installation/removal on power plant equipment. * Perform certified welding on boiler pressure parts, pressure vessels, and piping in accordance with ASME codes, subject to insurance underwriters' inspection/certification. * Execute a broad range of mechanical maintenance, including: * Repair/replacement of boiler tubes * Structural steel erection * Replacement of liner plates in fans, coal chutes, and hoppers * Welding repairs to castings and equipment * Piping/valve work (measuring, layout, cutting, threading, bending, fitting, installation) * Replacement of flange, valve, and heater gaskets; valve repacking, repair, overhaul * Cleaning/replacement of condenser and heat exchanger tubes * Where applicable, repair of traveling water screens Working Conditions & Hazards * Full range of temperatures from very hot to sub-freezing; sudden changes may occur. * Exposure to noise, dust, dirt, fumes, odors, drafts, inclement weather, heights, and confined spaces. * Hazards typical of welding and heavy industrial maintenance work, including burns, flashes, and risks related to elevated work and energized equipment areas. Qualifications * High School Diploma or GED AND either: * Completion of a two-year technical college program and 5 years working as a Certified Welder Repairman, OR * Completion of a certified apprentice program and 5 years working as a Certified Welder Repairman, OR * Ten (10) years working as a Certified Welder Repairman. * Must be able to climb ramps, ladders, and stairs, work at heights and in confined spaces. Department This position is within our Energy Center Shop Maintenance Department. Additional Information Ameren's selection process includes a series of interviews and may include candidate testing and/or an individual aptitude or skill-based assessment. Specific details will be provided to qualified candidates. Hourly Pay: Grade Step OA 059 Step 1 of 1 (Top Step) - 54.56 USD Position is eligible for annual incentive payments based on company performance and subject to sole management discretion. Visit our Benefits & Perks Page for more information on benefits provided to regular full-time employees. If end date is listed, the posting will come down at 12:00 am on that date: All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, ethnicity, age, disability, genetic information, military service or status, pregnancy, marital status, sexual orientation, gender identity or expression, or any other class, trait, or status protected by law.