Ameren jobs - 45 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: wholesale energy, renewable energy power purchase agreements, electric transmission, electric capacity, ancillary service agreements, coal, coal transportation, rail surcharge, emissions allowances, emissions control commodities, natural gas, natural gas transportation & services, renewable energy credits, fuel oil, alternative fuels, uranium, and related nuclear fuel services (conversion, enrichment, fabrication). In addition, the candidate will coordinate the dispatch and fuel operations of the Ameren Missouri generation fleet. Key responsibilities include: ● 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 ● Coordinates coal delivery and transportation logistics ● Maintain effective communication with other commodity traders, gas supply, management, power dispatchers, energy centers, and complimentary departments. ● Work with Back Office to resolve discrepancies or disputes as required Qualifications Bachelor's Degree from an accredited college or university required. MBA preferred. One year of commodity industry experience required. Physical 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 dependent upon individual credentials and position market pay level. Compensation Range: $82,400.00 - $127,700.00 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: 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 As a Leadership and Organizational Effectiveness Consultant, this role will partner with leaders throughout the organization to strengthen our values-based culture, boost employee engagement, and enhance the change experience for all employees. This role will help lead Ameren's culture change initiative, integrating it seamlessly with our strategy, leadership development, and talent processes. Additionally, this position will support change management across key initiatives - including consulting on change strategy, assessing readiness and impact, and measuring overall effectiveness to enhance performance. This dual-focused position requires strategic thinking and practical expertise to navigate complex enterprise-level change while building a healthy, high-performing organizational culture. Key Responsibilities include: Develop and maintain enterprise-level culture change roadmap including implementation schedule, communication plan, and approach for tracking cultural health and program effectiveness. Design, implement and evaluate organization development (OD) interventions (e.g., workshops, experiences, tools, resources for leaders) that reinforce desired mindsets and behaviors. Align culture initiatives with talent processes (e.g., performance management, onboarding, leadership development, employee listening and engagement, recognition) and key company moments (e.g., events, meetings). Collaborate cross-functionally with the HR team, the business (e.g., Communications, Operations, Digital), Ameren's Senior leadership team, and with external consulting partners to ensure alignment on priorities and outcomes. Design and consult on enterprise change initiatives including identification of change impacts to people, process, policy, structure, and technology; develop change strategies focused on stakeholder management, communication, sustainability of change, and cultural alignment. Establish metrics and measurement frameworks to track change readiness, adoption rates, effectiveness, and business value realization. Serve as a trusted coach and advisor to leaders on change readiness, organizational health, and culture evolution. Manage stakeholder engagement and partner across the business (including Performance Management Office and Ameren Transformation Office) and with external consulting partners to support development of change resources and strategies. Develop and lead internal networks supporting culture and change across the organization. Design and deliver training and resources to build organizational and leadership change management capability and consistent utilization of change methodology and tools, including support of the Ameren Change Experts (ACE) community of practice. Monitor external trends and best practices in change management, culture, and organizational development, bringing innovative approaches to our work. Minimum Qualifications: Bachelor's degree required, preferably in HR, Organizational Development, Psychology, Business, or related field of study. 5 or more years of relevant professional level experience (e.g., change management, leadership development, program design and management, or high impact organizational effectiveness consulting experience) required. Prosci change management certification preferred. In addition to the above qualifications, the successful candidate will demonstrate: Ability to build relationships and work effectively with all levels of leadership. Strong communication (oral and written) and presentation skills. A solid understanding of business concepts with the ability to think strategically and translate into pragmatic plans to achieve results. Knowledge of change management practices and tools with the ability to influence significant change initiatives. Ability to prioritize and manage multiple projects. A proactive and continuous improvement mindset, including a focus on leveraging technology, automation, and analytics to facilitate strong operational performance. 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. Responsibilities may evolve based on business needs and individual strengths. #LI-Hybrid Compensation Range: $88,500.00 - $137,200.00 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: 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.

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.

About the Callaway Energy Center The Callaway Energy Center is a nuclear facility located in mid-Missouri. The Energy Center has more than 800 employees and contractors working at the facility, and it has established a strong record of safe operation throughout its 30-year operating history. The Energy Center is a highly efficient, low-cost, sustainable source of electricity for Ameren Missouri's 1.2 million customers. 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, Rad/Chem is responsible to supervise, direct, and coordinate either Chemistry or Radwaste activities at the Callaway Energy Center. Key responsibilities include: Review and submit for approval requisitions for purchase and issuance of all material, equipment, and spare parts associated with the department. Supervise assigned personnel, including scheduling work assignments, ensuring staff allocations are adequate to meet plant operating conditions; approving time records, and initiating disciplinary measures as appropriate. Review, revise and maintain department procedures. Assume Emergency Response Organization (ERO) duties in accordance with Callaway Energy Center Radiological Emergency Response Plan (RERP) including responding to assigned ERO facilities within the required RERP response time. Implement, direct, and coordinate the Primary, Secondary and Raw Water Chemistry Programs, to include overall operation of the Hot Lab, Cold Lab, and Water Treatment Plant. Supervise and Coordinate the activities associated with maintaining chemistry control, including technical specifications and surveillance programs related tasks for refueling and forced outages. Qualifications High School Diploma or equivalent required. Five or more years nuclear or relevant experience in Chemistry, Radwaste, Operations, or Radiation Protection activities required. In addition to the above qualifications, the successful candidate will demonstrate: Good leadership, decision-making, analytical, communication and human relations skills are required. 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. Security screening required for Callaway Energy Center access. Working Conditions The Radwaste / Chemistry Supervisor works a standard day shift in an office/plant environment. Additional hours, callouts and/or rotating shifts or Outage schedules may be required to support plant operations. 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: 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 Long Term Incentive Plan Option to enroll in Deferred Compensation 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 Director, Economic Development leads the planning and implementation of strategies designed to foster service area community and economic growth. The position directs a team of professionals who support public-private partnerships to address community growth and development capacity and leads business location, expansion and retention projects. The Director, Economic Development supports and leads local, regional and statewide organizations that support community and business growth and serves as the point of contact for new commercial and industrial businesses considering location within the Ameren service territory. Key responsibilities include: Plan and direct business development strategies to promote the retention, expansion and attraction of business and industry throughout the Ameren Missouri service territory to achieve strategic goals and targets. Promote positive working relationships between Ameren Missouri and service area communities, enhance local/regional development capacity and improve overall economic competitiveness for new business growth within service area. Manage two teams, staffed by business development executives who serve as the primary point of contact for prospective commercial and industrial customers, assist in preparation and negotiation of new business proposals, provide utility service details and conduct energy rate analyses. One team is focused on assisting large electric load customers, and one team is focused on assisting non-large electric load customers. Support the planning and implementation of multi-channel business to business marketing activities and communication strategies to generate qualified business development leads and support Ameren's positive brand identity in the community. Serve as Ameren Missouri's representative to statewide business and economic development organizations to address issues affecting the service area economy and communicate Ameren Missouri's positions and policies related to such issues. Oversee business incentive programs and contract management in accordance with Ameren Missouri's rules and regulations. Conduct all department administrative functions including, but not limited to, personnel evaluation, staff development, department performance metrics, administration of policies, budget preparation, staff coaching and co-worker engagement. Qualifications: Bachelor's degree from an accredited university required. Bachelor's degree in related field (business, finance, marketing, communications, or public administration) preferred. Advanced degree is preferred. Completion of accredited certification in the field of community development, economic development, development finance, or project management professional is preferred. Understanding of electric and natural gas service delivery, rates and regulations is preferred. 10 or more years of relevant experience in business, community/economic development, public administration, or business marketing is required. 5 or more years of supervisory or high-level team/project leadership experience required. In addition to the above qualifications, the successful candidate will demonstrate: Proven analytical skills in public policy, market analysis, real estate and construction planning, development finance and incentive programs. Excellent interpersonal skills and ability to work effectively with various internal and external stakeholders at all levels of the organization. Demonstrated ability to cultivate an engaging team environment that delivers business results. Strong business sense and demonstrated ability to use good judgment. Excellent communication skills required. Proficiency with Microsoft products including, Word, PowerPoint and Excel is 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: $138,900.00 - $215,300.00 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. Director and above positions also include a Long-Term Incentive Plan and the option to enroll in a Deferred Compensation Plan. If end date is listed, the posting will come down at 12:00 am on that date: Sunday January 04, 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 Position(s): Hourly Rate Range: $43.43 - 52.65 Revision Date: 10/21/2022 Hours: - PM rotating 4-10's First week Monday-Thursday 3:30pm till 2:00am, next week Tuesday-Friday 3:30pm- 2:00am thus having a 4 day weekend every other weekend. - Owl shift comes in Tuesday- Friday 9pm-7:30am. Shift starts at 9pm Monday night and their last day is Friday morning at 7:30 am and wont report back till Monday at 9PM. DUTIES: Under direct but not constant supervision, to do a general range of repair and maintenance work on automotive equipment, construction equipment and power take-off driven equipment; to repair garage equipment as required; to direct the work of another Automotive Mechanic or Fleet Services employee of lesser grade; and do similar and less skilled work as required. In this connection to perform details of work, such as: Overhaul motors, transmissions, and differentials. Analyze motors. Overhaul and adjust brake systems. Repair, overhaul and align vehicle front end and steering systems. Repack, adjust, or replace bearings. Repair and overhaul fuel systems. Repair and overhaul cooling systems. Install, repair and overhaul electrical systems. Do welding. Make minor fender and body repairs. Paint or touch up. Make modifications on equipment as required. Install crew cab glass. Repair or replace suspension systems. Repair or replace tires. Balance wheels. Replace or repair components of construction equipment and power take-off driven equipment. Maintain small powered equipment. Attend garage gasoline service station, as required. Make service calls. SPECIAL RESPONSIBILITIES: For proper care and use of tools, materials, and shop equipment. For responding to calls quickly, and restoring equipment to service in a minimum of time. For working with precision when making close adjustments. For close careful inspection and adjustment of equipment for the protection of operators and equipment. For following safe working practices. CONTACTS: Frequently with Stores Department employees and distributors in picking up parts and materials. With those having work done on equipment in the field or in the shop. WORKING CONDITIONS: Exposed to outside weather conditions; must dress for inside and outside work; subject to irritations from gas, oil, solvents, fumes; and to damp and drafty conditions. HAZARDS: Subject to skin abrasions; to eye injury from foreign particles, to the hazards of carbon monoxide gas; to the hazard of working under and around equipment; to street and highway traffic. OTHER: Candidates who cannot perform some or all of these duties because of disabilities will nevertheless receive full consideration for the job based on their ability to perform the essential functions. QUALIFICATIONS: Graduation from high school or successful completion of a recognized high school equivalency examination. Successful completion of an approved educational program in automotive maintenance or its equivalent preferred and shall have satisfactorily performed for two years in an automotive maintenance facility in a repair technician classification or its equivalent. An additional five years of satisfactory performance in an automotive maintenance facility in a repair technician classification will be considered in lieu of completion of an approved educational program. Must be able to meet and deal with people, be willing to work alone for considerable periods, be active and able-bodied and have average physical strength and endurance. Must be a competent operator of equipment and be able to qualify for chauffeur's license. Must successfully complete all testing requirements related to this classification. Must obtain and maintain a valid class (A) C.D.L. license with HAZMAT endorsement. Additional Additional Job Description Hourly Pay: Grade Step IA 150 Step 1 of 5 - 43.43 USDGrade Step IA 150 Step 2 of 5 - 45.29 USDGrade Step IA 150 Step 3 of 5 - 47.90 USDGrade Step IA 150 Step 4 of 5 - 49.53 USDGrade Step IA 150 Step 5 of 5 (Top Step) - 52.65 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. Job Description Position(s): 1 Hourly Rate Range: $32.55 - $40.67 Area/Div: 0117 Revision Date: 4/6/15 DUTIES: Under indirect and intermittent supervision, to do all levels of drafting work on which the general design has been established, on construction and rehabilitation projects on transmission substations, service buildings and other Company transmission properties; and to do related work as required. In the connection to perform details of work, such as: Prepare finished drawings from preliminary designs, diagrams, layouts, sketches, notes, specifications, or verbal instructions. Make study drawings or assist with the drawings of equipment arrangements and details, foundation, structures or other civil/structural drawings in the development of a construction project. Make simple calculations or use tables or determine clearances, volumes, conduit sizes, etc. Prepare schedules, bills of materials, etc. Occasionally, check drawings of other Civil/Structural Designer I or CAD Technicians. Assist in department training program as a mentor, trainer or other assigned by supervision. Occasionally, obtain detailed information in the field, usually accompanied by a Supervisor, Civil/Structural Designer II or others. Maintain and update information in the electronic drawing management system. SPECIAL RESPONSIBILITIES: Quality and accuracy in updating and maintaining CAD drawings and to standards of the work he/she checks. For care to prevent errors in field measurements taken by him/her. Responsible for safe, prudent, efficient and effective use of Company resources. Conduct self in efficient and effective manner. CONTACTS: Supervisors, engineers, construction personnel, other Company departments in connection with work performed, outside companies (if requested) in acquiring information for the maintenance of Ameren drawings. WORKING CONDITIONS: Primarily in an office environment, however when on field trips or assigned to a special on-site project they may be subject to the usual conditions existing in switchyards, substations or other buildings, and subject to outdoor weather conditions. When in the field the employee must wear personal protective equipment as required. HAZARDS: Subject to those hazards incidental to visiting construction projects, switchyards, substations and other buildings. QUALIFICATIONS: Graduation from high school or the equivalent. Possess and maintain a valid driver's license. Successfully pass the Company's EEI Technical Aptitude test. If an aptitude test is failed on the employee's initial effort, it may be retaken after a one-month waiting period, but not to be taken more than once per job posting. Only two retakes will be permitted. Two years as a CAD Technician or three years outside the Company in CAD related work. Satisfactory completion of an Associate's Degree in in design drafting, computer aided drafting or other drafting technology at an accredited university, college or junior college. Satisfactory completion of at least 9 credit hours in the field of structural/civil design, civil/ structural engineering or other study of civil/structural technology at an accredited university, college or junior college. Successfully complete the department Civil/Structural Designer I training program and score at least an 80% on the department Civil/Structural Designer I evaluation. If employee is hired from outside of Ameren, the Designer I evaluation will be completed within the first 6 months of being hired into department. Employees who do not score at least an 80% on the Designer I evaluation will be disqualified from the position. OTHER: Candidates must be able to perform the essential functions of the job with or without reasonable accommodation. The Company will provide reasonable accommodation in appropriate circumstances when consistent with applicable law. Hourly Pay: Grade Step JB 020 Step 1 of 9 - 32.55 USDGrade Step JB 020 Step 2 of 9 - 33.27 USDGrade Step JB 020 Step 3 of 9 - 33.88 USDGrade Step JB 020 Step 4 of 9 - 34.99 USDGrade Step JB 020 Step 5 of 9 - 36.21 USDGrade Step JB 020 Step 6 of 9 - 37.12 USDGrade Step JB 020 Step 7 of 9 - 38.44 USDGrade Step JB 020 Step 8 of 9 - 39.67 USDGrade Step JB 020 Step 9 of 9 (Top Step) - 40.67 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: Wednesday December 31, 2025 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.

About the Callaway Energy Center The Callaway Energy Center is a nuclear facility located in mid-Missouri. The Energy Center has more than 800 employees and contractors working at the facility, and it has established a strong record of safe operation throughout its 30-year operating history. The Energy Center is a highly efficient, low-cost, sustainable source of electricity for Ameren Missouri's 1.2 million customers. 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 Nuclear Operations Instructor develops, administers and maintains training programs to support the overall Qualification Programs established at Callaway Energy Center (CEC) and maintains full accreditation for the CEC for their specific discipline, ensuring that the CEC is in full compliance with the requirements for accredited programs under the National Academy for Nuclear Training. Instructors maximize student learning by providing quality training to maintain and improve worker knowledge and skills and improve plant performance. Key responsibilities include: Administer formal classroom training to include: Classroom, Laboratory/Simulator instruction, Preparation, administration, and grading of examinations, Evaluation of trainee performance, and Scheduling and coordinating training course presentations with appropriate department personnel Support implementation of an effective and efficient Systematic Approach to Training (SAT) that meets or exceeds industry standards and is institutionalized into plant procedures and processes. Support subject matter experts and vendors providing on-site and off-site training within the appropriate discipline area. Monitor Condition Reports and industry trends for potential areas of weakness for Operating Experience applicability into lesson plans. Ensure accurate and timely documentation of all training conducted in accordance with applicable procedures and criteria. Actively participate in training programs to maintain individual qualifications. Participate in in-plant activities and field time to maintain required licenses, certifications, and technical proficiency. Provide refueling outage support for preparations, in-processing training, and/or filling assigned outage position. Assume Emergency Response Organization (ERO) duties in accordance with Callaway Energy Center Radiological Emergency Response Plan (RERP) including responding to assigned ERO facilities within the required RERP response time. Technical Level Knowledge - Under guidance, develops fundamental understanding of the overall training program. Possesses working knowledge of subject matter in technical area. Learning training program standards. Job Complexity - Intermediate skill level for administering training with significant technical area knowledge. Supervision - Receives general guidance and supervision on work assignments with more detailed instruction on new assignments. Leadership - Provides peer reviews and feedback. Qualifications: Nuclear Operations Instructor: Bachelor's Degree or Associate's Degree from an accredited college or university is required. Two (2) or more years of relevant experience (training/adult education, heavy industrial or power plant, instructional design or curriculum development, etc.) is required. High school diploma and 4 years of relevant experience (as listed above) may be considered in lieu of Bachelor's/Associate's degree. Previous training instructor experience in a NANT accredited program preferred. Current/previous SRO NRC license or certification for CEC or a similar unit from an accredited institution is preferred. Senior Nuclear Operations Instructor: Current/previous RO or SRO NRC license or certification for CEC or a similar unit is required. Bachelor's Degree preferred. Five (5) or more years of relevant professional or journey level nuclear operations or nuclear operations training experience is required. Previous training instructor experience in a National Academy for Nuclear Training accredited program preferred. In addition to the above qualifications, the successful candidate will demonstrate: Excellent verbal and written communications skills, ability to supervise and motivate personnel, dependability and good human relations characteristics required. Proficiency with Microsoft Office software preferred. Basic understanding of Computer Based Training preferred. Basic knowledge of Learning Management Systems preferred. Qualified candidates are required to establish and maintain their permanent residence within sixty highway miles of the Callaway Energy Center. Security screening required for Callaway Energy Center access. Working Conditions The Nuclear Instructor works a standard day shift in an office/plant environment. Callouts and working rotating or Outage schedules may be required to support plant operations. Additional Information Candidates without current/previous RO or SRO NRC license or certification will be required to pursue SRO certification. This position Ameren's selection process includes a series of interviews and may include an assessment process. Specific details will be provided to qualified candidates. Compensation Range: $82,400.00 - $158,900.00 * 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.

About the Callaway Energy Center The Callaway Energy Center is a nuclear facility located in mid-Missouri. The Energy Center has more than 800 employees and contractors working at the facility, and it has established a strong record of safe operation throughout its 30-year operating history. The Energy Center is a highly efficient, low-cost, sustainable source of electricity for Ameren Missouri's 1.2 million customers. 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 Systems Engineer provides technical leadership for the site through optimization and reliability of systems and equipment, proactive identification and resolution of plant issues, and technical assistance to other departments. Key responsibilities include: * Maintain the health and reliability of systems/components and identify and respond to threats to reliability specific to individual systems and cross-cutting threats to reliability that impact multiple systems. * Evaluate systems/component types through proactive performance monitoring and trending of the performance of assigned systems/components. * Identify adverse trends and proactively initiate actions to prevent system performance degradation or component failures. * Identify system or component conditions or deficiencies that can impact system operation and notify Operations or management as appropriate. * Perform causal analysis of equipment and system/area deficiencies and failures and determine corrective actions to resolve * Prioritize / establish action plans to address deficiencies on assigned systems/areas via the corrective action and work management processes. * Provide technical support in the preparation and execution of complex work packages on assigned systems/components, as required. * Support Maintenance and Operations in system troubleshooting and provide system /component/discipline expertise for troubleshooting significant events or complex plant problems. * Maintain thorough knowledge of programs, codes, standards and operating experience and how they relate to the plant. * Perform safety evaluation screening, disposition of nonconformance reports, disposition Requests for Resolution (RFRs) to include Engineering Evaluations, Setpoint Changes, Minor Modifications, and Material Equivalencies for equipment within assigned system/area/component groups. * Perform engineering evaluations and reviews of applicable NRC and INPO documents and review, use, and share Operating Experience. * Interface with other departments for cost effective maintenance strategies on assigned systems/area. * Support changes in configuration/design and design basis. * Provide technical support in the preparation of procedure revisions or temporary changes to procedures. * Assume Emergency Response Organization (ERO) duties in accordance with Callaway Energy Center Radiological Emergency Response Plan (RERP) including responding to assigned ERO facilities within the required RERP response time. Qualifications Bachelor of Science Degree in Engineering from an ABET accredited institution required. Fundamentals of Engineering (FE) or Professional Engineer (PE) Registration/Licensure preferred. Previous nuclear utility and/or related experience preferred. * Technical career path level depends upon applicant's credentials. In addition to the above qualifications, the successful candidate will demonstrate: Good leadership, decision making, communication and human relations skills required. Security screening required for Callaway Energy Center access. Working Conditions The Systems Engineer works a standard day shift in an office/plant environment. Additional hours and/or rotating shifts may be required during refueling outages and emergent plant activities as the needs arise. 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 - $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: 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. 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. 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 - 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 - $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: 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 Engineering/Project Management Spring and Fall Co-Op openings across the states of Illinois and Missouri. The options for collegiate employment are: Jan - Aug May - Dec 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 Project Management or Engineering Management from an accredited college or university required with a 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: 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.

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 Location: Labadie, MO (Franklin County) - near Washington and Gray Summit Facility: Labadie Energy Center About the Facility This role is based at Labadie Energy Center, one of Missouri's largest power generation facilities-producing approximately 2,390 MW of electricity across four high-capacity steam turbine units. Inside, you'll find expansive turbine halls with soaring ceilings, advanced steam systems, and dedicated maintenance shops designed for heavy industrial equipment, along with secure control centers-creating a dynamic environment for repair and technical work. Summary You will perform precision welding and heavy mechanical repair work across power plant 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) - 52.97 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. 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 Program Supervisor, Energy Efficiency is an internal consultant leading advancements of Ameren Missouri's Energy Efficiency implementation contractors and programs. Key responsibilities include: Oversees the most critical, complex or largest energy efficiency programs. Leads report outs on program performance and key insights with regulators, business leaders, and other external stakeholders. Create and implement continuous improvement with emphasis on improving the customer experience Identify declining and emerging technologies and delivery channel opportunities and lead the incorporation of those insights into portfolio plans. Lead the development of program and portfolio plans as well as contribute to Commission approval; which may include expert witness testimony. Acts as an informal leader and consultant within the group as well as provide mentoring for less experienced team members. Uses exceptional knowledge of Missouri Energy Efficiency Investment Act, energy efficiency regulatory rules, approved energy efficiency regulatory filings and associated tariffs to develop and execute strategic insights. Qualifications Bachelor's Degree from an accredited college or university required. Engineering, Business, Marketing, or similar background preferred. Advanced degree preferred. A minimum of seven years of experience in managing energy efficiency programs is required. Project Management Professional is required or achieved within 12 months. Experience leading at least three different energy efficiency programs through the program life cycle of design, launch, operations, and closure is required. In addition to the above qualifications, the successful candidate will demonstrate: Experience in contract development and execution preferred. Experience leading external stakeholder interactions on complex topics Strong decision-making, problem solving, analytical, and computational skills also required. Ability to work in a fast-paced environment with critical time deadlines required. Strong interpersonal and communication skills (public speaking and written) required. Strong relationship building skills required. Strong working knowledge of PowerPoint, Excel, and Word is 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: $111,100.00 - $172,200.00 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 02, 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.

About the Callaway Energy Center The Callaway Energy Center is a nuclear facility located in mid-Missouri. The Energy Center has more than 800 employees and contractors working at the facility, and it has established a strong record of safe operation throughout its 30-year operating history. The Energy Center is a highly efficient, low-cost, sustainable source of electricity for Ameren Missouri's 1.2 million customers. 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 Systems Engineer provides technical leadership for the site through optimization and reliability of systems and equipment, proactive identification and resolution of plant issues, and technical assistance to other departments. Key responsibilities include: Maintain the health and reliability of systems/components and identify and respond to threats to reliability specific to individual systems and cross-cutting threats to reliability that impact multiple systems. Evaluate systems/component types through proactive performance monitoring and trending of the performance of assigned systems/components. Identify adverse trends and proactively initiate actions to prevent system performance degradation or component failures. Identify system or component conditions or deficiencies that can impact system operation and notify Operations or management as appropriate. Perform causal analysis of equipment and system/area deficiencies and failures and determine corrective actions to resolve Prioritize / establish action plans to address deficiencies on assigned systems/areas via the corrective action and work management processes. Provide technical support in the preparation and execution of complex work packages on assigned systems/components, as required. Support Maintenance and Operations in system troubleshooting and provide system /component/discipline expertise for troubleshooting significant events or complex plant problems. Maintain thorough knowledge of programs, codes, standards and operating experience and how they relate to the plant. Perform safety evaluation screening, disposition of nonconformance reports, disposition Requests for Resolution (RFRs) to include Engineering Evaluations, Setpoint Changes, Minor Modifications, and Material Equivalencies for equipment within assigned system/area/component groups. Perform engineering evaluations and reviews of applicable NRC and INPO documents and review, use, and share Operating Experience. Interface with other departments for cost effective maintenance strategies on assigned systems/area. Support changes in configuration/design and design basis. Provide technical support in the preparation of procedure revisions or temporary changes to procedures. Assume Emergency Response Organization (ERO) duties in accordance with Callaway Energy Center Radiological Emergency Response Plan (RERP) including responding to assigned ERO facilities within the required RERP response time. Qualifications Bachelor of Science Degree in Engineering from an ABET accredited institution required. Fundamentals of Engineering (FE) or Professional Engineer (PE) Registration/Licensure preferred. Previous nuclear utility and/or related experience preferred. Previous I&C experience preferred. In addition to the above qualifications, the successful candidate will demonstrate: Good leadership, decision making, communication and human relations skills required. Security screening required for Callaway Energy Center access. Working Conditions The Systems Engineer works a standard day shift in an office/plant environment. Additional hours and/or rotating shifts may be required during refueling outages and emergent plant activities as the needs arise. 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. *Technical career path level depends upon applicant's credentials Compensation Range: $69,300.00 - $210,000.00 * 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. About The Position The Operating Supervisor supervises the operation of Callaway Energy Center to ensure the safe, legal and efficient operation of the nuclear power generating unit. Key responsibilities include: Manage and direct a team of approximately 10 employees. Direct Reactor Operators in the control room performing procedures to maneuver and operate the plant. Supervise Operations Technicians in the field performing local system operations and testing. Administer the Workman's Protection Assurance Program. Train and develop crew members. Interface with all nuclear departments, internal company personnel, and external personnel as required to support work on plant equipment and systems. Maintain and promote positive behaviors in the areas of commitment to excellence, teamwork, respect, integrity, accountability, and stewardship. Support performance improvement initiatives such as assessments, benchmarks, and the corrective action program. Actively participate in training to develop and broaden the skills of the Callaway Energy Center workforce. May be assigned to rotational positions in work control or as a training instructor. Assume Emergency Response Organization (ERO) duties in accordance with Callaway Energy Center Radiological Emergency Response Plan (RERP) including responding to assigned ERO facilities within the required RERP response time. Qualifications High School Diploma or equivalent is required. Must meet one of the following requirements: 1) Currently a Licensed Reactor Operator or Licensed Senior Reactor Operator with one or more years of experience in the position; 2) Previously a Licensed Reactor Operator or Licensed Senior Reactor Operator at a commercial reactor with at least 1.5 years of experience in the position; 3) Qualified Reactor Operator (RO), Engineering Watch Supervisor (EWS), Propulsion Plant Watch Supervisor (PPWS), or Engineering Officer of the Watch (EOOW) on a military reactor for a minimum of 2 years; 4) Bachelor of Science degree in Engineering or related sciences with a minimum of 1.5 years of nuclear power plant experience; 5) Previously Certified Senior Reactor Operator at another site or currently Certified Senior Reactor Operator at Callaway with at least 2 years of experience in the position. In addition to the above qualifications, the successful candidate will demonstrate: Good leadership, decision-making, communication and human relations skills are required. 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. Qualified candidates are required to establish and maintain their permanent residence within sixty highway miles of the Callaway Energy Center. Security screening required for Callaway Energy Center access. Working Conditions The Operating Supervisor works a rotating shift in an office/plant environment. Additional hours and/or callouts may be required during refueling outages and emergent plant activities as the needs arise. 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. $102,500.00 - $158,900.00If 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.