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Senior Software Engineer-Test & Verification
Boeing 4.6
Principal software engineer job in Saint Louis, MO
At Boeing, we innovate and collaborate to make the world a better place. We're committed to fostering an environment for every teammate that's welcoming, respectful and inclusive, with great opportunity for professional growth. Find your future with us.
The Boeing Company is currently seeking a Senior SoftwareEngineer-Test & Verification to support our Boeing Global Services (BGS) Government Vehicle Health Management Systems (GVHMS) teamlocated in Hazelwood, Missouri.
At The Boeing Company, we innovate and collaborate to make the world a better place. From the seabed to outer space, you can contribute to work that matters with a company built on shared values. We're committed to fostering an environment for every teammate that's welcoming, respectful and inclusive, with great opportunity for professional growth. Find your future with us.
Our amazing team of engineers develops, fields, and supports platform health management systems for the F/A-18, MQ-25, F-15, T-38, T-7, and proprietary platforms. Our software acquires and manages platform health and usage data, performs health, and usage assessment and recommends maintenance actions. We are tasked with the creation, design, development, modification, proof of concept, verification, testing, and demonstration of products and solutions to maximize platform mission readiness and effectiveness, reduce lifecycle costs, and keep our customers safe.
This position will focus on supporting the Boeing Commercial Airplanes (BCA) & Boeing Global Services (BGS) SoftwareEngineering organization. The GVHMS team develops, fields and supports health management systems for defense platforms. The Central Maintenance Computing System (CMCS) is an on-board system that acquires, stores, analyzes and reports the health of the vehicle. The team is looking for a highly motivated software test and verification engineer to test software, derive test cases from requirements, and develop automated test cases throughout phases of the software development life cycle (requirements, design, implementation and verification). The software test and verification engineer will document, design, plan, and design CMCS software test functionality.
Position Responsibilities:
Develop and maintain robust Python script
Utilize Cucumber / Gherkin for behavior-driven development to create clear and concise test scenarios
Experience with tools like Git, Jira, or an equivalent for version control and project tracking
Experience with test frameworks to design, implement, and execute comprehensive testing solutions
Create, plan, and execute a test cycle
Analyze program requirements to develop new, effective test cases that ensure comprehensive coverage of functionalities
Document software bugs with appropriate information for analysis (environment information, data logs, etc.)
Communicate with multifunctional skill teams including softwareengineers, systems engineers, and hardware engineers
This position is expected to be 100% onsite. The selected candidate will be required to work onsite at one of the listed location options.
Basic Qualifications (Required Skills/ Experience):
Ability to Obtain U.S. Secret security clearance
8+years of experience in writing Software Test Plans (STP), Software Test Descriptions (STD), and Software Test Reports (STR)
5+ years of experiencecreating scripts in Python
3+ years of experiencewith Quality Automation Tools (ex. Selenium, Cucumber, LoadRunner)
Experience with Ethernet Network Data Buses
Preferred Qualifications (Desired Skills/Experience):
Bachelor of Science degree from an accredited course of study in engineering, engineering technology (includes manufacturing engineering technology), chemistry, physics, mathematics, data science, or computer science.
1+ years of experience with MIL-STD-1553 and/or MIL-STD-1760 communication protocols
Active Secret Clearance
Familiarization with hardware and network architecture including server and client environments
Familiarization with military aircraft flightline operations
C# experience or familiarity with Ranorex for automated testing
Travel:
5% or less
Drug Free Workplace:
Boeing is a Drug Free Workplace (DFW) where post offer applicants and employees are subject to testing for marijuana, cocaine, opioids, amphetamines, PCP, and alcohol when criteria is met as outlined in our policies.
CodeVue Coding Challenge:
To be considered for this position you will be required to complete a technical assessment as part of the selection process. Failure to complete the assessment will remove you from consideration.
Pay & Benefits:
At Boeing, we strive to deliver a Total Rewards package that will attract, engage and retain the top talent. Elements of the Total Rewards package include competitive base pay and variable compensation opportunities.
The Boeing Company also provides eligible employees with an opportunity to enroll in a variety of benefit programs, generally including health insurance, flexible spending accounts, health savings accounts, retirement savings plans, life and disability insurance programs, and a number of programs that provide for both paid and unpaid time away from work.
The specific programs and options available to any given employee may vary depending on eligibility factors such as geographic location, date of hire, and the applicability of collective bargaining agreements.
Pay is based upon candidate experience and qualifications, as well as market and business considerations.
Summary pay range for Senior Level$122,400 - $165,600
Applications for this position will be accepted until Jan. 19, 2026
Export Control Requirements:
This is not an Export Control position.
Relocation
This position offers relocation based on candidate eligibility.
Security Clearance
This position requires the ability to obtain a U.S. Security Clearance for which the U.S. Government requires U.S. Citizenship. An interim and/or final U.S. Secret Clearance Post-Start is required.
Visa Sponsorship
Employer will not sponsor applicants for employment visa status.
Shift
This position is for 1st shift
Equal Opportunity Employer:
Boeing is an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, national origin, gender, sexual orientation, gender identity, age, physical or mental disability, genetic factors, military/veteran status or other characteristics protected by law.
$122.4k-165.6k yearly 2d ago
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AWS Cloud Engineer/Architect
Slalom 4.6
Principal software engineer job in Saint Louis, MO
Who You'll Work With As a modern technology company, our Slalom Technologists are disrupting the market and bringing to life the art of the possible for our clients. We have a passion for building strategies, solutions, and creative products to help our clients solve their most complex and interesting business problems. We surround our technologists with interesting challenges, innovative minds, and emerging technologies.
We are looking for skilled AWS Cloud Engineers and Architects with expertise in workload migrations and operational experience to join our team. The ideal candidate will be responsible for designing, deploying, and managing scalable cloud infrastructure, ensuring high availability, security, and efficiency. You will play a key role in automating cloud deployments, optimizing performance, and troubleshooting infrastructure-related issues.
At Slalom, we invest heavily in our partnership with AWS and at AWS re:Invent 2025, we were honored with four AWS Partner of the Year awards. These included Industry Partner of the Year for both Retail & Consumer Packaged Goods and Travel & Hospitality (Consulting - Global), as well as State or Local Government Consulting Partner of the Year and Non-Profit Organization (NPO) Consulting Partner of the Year.
What You'll Do
* Infrastructure as Code (IaC): Design, implement, and maintain AWS infrastructure using Terraform.
* Cloud Operations: Monitor, troubleshoot, and optimize cloud environments for performance, security, and cost efficiency.
* Automation & CI/CD: Develop automation scripts and pipelines using tools like Terraform, Ansible, AWS CDK, or GitHub Actions.
* Security & Compliance: Capable of implementing best practices for security, identity management, and compliance (IAM, VPC, encryption, logging).
* Observability & Monitoring: Set up and maintain monitoring, logging, and alerting solutions (CloudWatch, Prometheus, Grafana).
* Incident Management: Respond to and resolve production incidents, ensuring minimal downtime and fast recovery.
* Collaboration: Work closely with developers, DevOps teams, and security teams to support cloud-based applications.
* Documentation: Maintain clear and up-to-date documentation for cloud infrastructure and automation processes.
What You'll Bring
* 5+ years of hands-on experience with AWS services (EC2, S3, Lambda, RDS, VPC, CloudWatch, SSM, SSO, etc.).
* Strong experience with Terraform for infrastructure automation.
* Experience with cloud operations, monitoring, and incident response.
* Familiarity with Linux systems administration and scripting (Bash, Python, or PowerShell).
* Strong knowledge of networking concepts (VPC, VPN, DNS, Load Balancing, Security Groups).
* Experience with CI/CD pipelines and automation tools.
* Strong problem-solving skills and ability to work in a fast-paced environment.
* Good communication skills and ability to collaborate with cross-functional teams.
Nice to have
* Experience with one of the following: Python, PowerShell, Bash, Go, Rust.
* Experience with AWS MGN, DRS, Migration Factory.
* AWS certifications (AWS Certified Solutions Architect, AWS Certified DevOps Engineer, etc.).
* Experience with Kubernetes (EKS), Docker, or other container orchestration tools.
* Experience with RDS, Managed MSSQL, PostgreSQL.
About Us
Slalom is a fiercely human business and technology consulting company that leads with outcomes to bring more value, in all ways, always. From strategy through delivery, our agile teams across 52 offices in 12 countries collaborate with clients to bring powerful customer experiences, innovative ways of working, and new products and services to life. We are trusted by leaders across the Global 1000, many successful enterprise and mid-market companies, and 500+ public sector organizations to improve operations, drive growth, and create value. At Slalom, we believe that together, we can move faster, dream bigger, and build better tomorrows for all.
Compensation and Benefits
Slalom prides itself on helping team members thrive in their work and life. As a result, Slalom is proud to invest in benefits that include meaningful time off and paid holidays, parental leave, 401(k) with a match, a range of choices for highly subsidized health, dental, & vision coverage, adoption and fertility assistance, and short/long-term disability. We also offer yearly $350 reimbursement account for any well-being-related expenses, as well as discounted home, auto, and pet insurance.
Slalom is committed to fair and equitable compensation practices. For this position, the target base salary pay range in the following locations: Boston, Houston, Los Angeles, Orange County, Seattle, San Diego, Washington DC, New York, New Jersey, for Consultant level is $119,000-$147,500 and for Senior Consultant level it is $136,500-$169,500 and for Principal level it is $151,000-$187,500.
In all other markets, the target base salary pay range for Consultant level is $109,000-$135,500 and for Senior Consultant level it is $125,000-$155,500 and for Principal level it is $138,500-$172,000.
In addition, individuals may be eligible for an annual discretionary bonus. Actual compensation will depend upon an individual's skills, experience, qualifications, location, and other relevant factors. The salary pay range is subject to change and may be modified at any time.
We will accept applications until 3/31/2026 or until the positions are filled.
We are committed to pay transparency and compliance with applicable laws. If you have questions or concerns about the pay range or other compensation information in this posting, please contact us at: ********************.
EEO and Accommodations
Slalom is an equal opportunity employer and is committed to attracting, developing and retaining highly qualified talent who empower our innovative teams through unique perspectives and experiences. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veterans' status, or any other characteristic protected by federal, state, or local laws. Slalom will also consider qualified applications with criminal histories, consistent with legal requirements. Slalom welcomes and encourages applications from individuals with disabilities. Reasonable accommodations are available for candidates during all aspects of the selection process. Please advise the talent acquisition team or contact ****************************** if you require accommodations during the interview process.
$151k-187.5k yearly Easy Apply 4d ago
Software Engineer
Reinventing Geospatial
Principal software engineer job in Saint Louis, MO
Reinventing Geospatial (RGi) is a leading expert in geospatial solutions for Defense, Intelligence, and Federal clients. We enhance situational awareness for soldiers and analysts by integrating software development with geospatial intelligence. Our projects range from data collection to advanced deep learning, leveraging tools like Python, Java, and ArcGIS.
We don't just fill roles we build teams of high performers and leaders who make an immediate impact. At our core, we're driven by innovation and powered by people who work at the intersection of passion and performance. Here, you'll collaborate with bold thinkers, leverage cutting edge technology, and tackle meaningful challenges from day one.
Our culture is defined and anchored by three pillars:
Energy: We bring passion, purpose, and urgency to our work.
Edge: We take initiative, embrace growth, and step outside our comfort zone.
Execution: We get things done smartly, decisively, and with real results.
If you're the kind of person who leads with initiative, thrives in a fast-paced environment, and is eager to create real impact, we want you on our team.
Clearance:
Active Top Secret clearance with an ability to obtain SCI access and willingness to obtain CI Polygraph
US Citizenship Required
* This job posting is for a potential upcoming opening, and we encourage interested candidates to apply for future consideration.
As a SoftwareEngineer, you will...
* Contribute to the design, development, testing and integration of new capabilities from an idea to production across a complex system
* Integrate capabilities from different systems across the enterprise while the needs of users and stakeholders are met
* Participate in daily standups, sprint and release planning activities, and coordinate with other team members (systems engineer, systems administrator, tester, etc.) to accomplish the tasks outlined in user stories
* Write or contribute to documentation and end-user instructions/manuals, as necessary
SoftwareEngineer Qualifications...
* Associate's or Bachelor's Degree in Computer Science or related field
* 5+ years of experience in software development with experience in all phases of the software development lifecycle (analysis, design, development, testing, deployment, maintenance)
* Demonstrated experience developing with modern languages such as: Python, Ruby, Clojure, Java, JavaScript, etc.
* Experience designing, developing, documenting, testing, and debugging software that contains logical and mathematical solutions to problems
* Demonstrated experience using rapid prototyping and Agile based software development methodologies
* GEOINT/SIGINT/IMINT domain knowledge
Additional Skills We'd Like to See:
* Understanding of machine learning concepts
* Experience with development in microservice based architectures
* Understanding of web application development concepts and experience using web frameworks
* Experience with container technologies and orchestration such as Docker, Docker Compose, Kubernetes, etc.
* Experience with continuous integration and software CM processes / tools (Git, GitLab, GitLab CI, Jenkins, JIRA, Confluence)
* AWS experience and/or AWS certification (Developer, DevOps and/or, Architect, etc.)
* Security+ Certification
* Highly preferred to have Python programming language experience
$115,000 - $170,000 a year
Salary Range: $115,000 - $170,000
Salary is commensurate with experience.
Who we are:
Reinventing Geospatial, Inc. (RGi) is a fast-paced small business that has the environment and culture of a start-up, with the stability and benefits of a well-established firm. We solve complex problems within geospatial software development and national defense to make an Immediate Impact for our nation's soldiers and analysts.
We pride ourselves on giving employees an exceptional life experience, where creativity thrives, and challenges are simply part of the fun. We provide truly excellent benefits, including:
* 100% paid employee healthcare & dental insurance
* Paid parental leave
* 401k with matching
* Escalating vacation time
* Referral bonuses
* Tuition reimbursement
* Professional development training
* Free beverages and snacks
* Weekly catered lunches and breakfast on Fridays
Grow to be our next leader:
At RGi, fostering a strong and organic corporate culture is paramount and serves as a compass on the decisions we make and how we operate the company. We believe our culture of camaraderie, innovation, and collaboration reflects the caliber of our employees and their dedication to the mission of providing quality software to our customers. As such, we want our employees to feel empowered to seek growth and leadership opportunities within the company and position us to maintain our culture as we grow. RGi provides opportunities, resources, training, and mentorship to all our employees to let them take control of their careers and become a leader or a crucial member of our company. If this is what you are looking for in a company, then you are what we are looking for in an employee.
Reinventing Geospatial, Inc. is an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, sex, national origin, age, veteran status, disability, or any other protected class. U.S. Citizenship is required for all positions.
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.
$115k-170k yearly 60d+ ago
Software Engineer
Reinventing Geospatial, Inc. (RGi
Principal software engineer job in Saint Louis, MO
Job DescriptionReinventing Geospatial (RGi) is a leading expert in geospatial solutions for Defense, Intelligence, and Federal clients. We enhance situational awareness for soldiers and analysts by integrating software development with geospatial intelligence. Our projects range from data collection to advanced deep learning, leveraging tools like Python, Java, and ArcGIS.
We don't just fill roles we build teams of high performers and leaders who make an immediate impact. At our core, we're driven by innovation and powered by people who work at the intersection of passion and performance. Here, you'll collaborate with bold thinkers, leverage cutting edge technology, and tackle meaningful challenges from day one.
Our culture is defined and anchored by three pillars:
Energy: We bring passion, purpose, and urgency to our work.Edge: We take initiative, embrace growth, and step outside our comfort zone.Execution: We get things done smartly, decisively, and with real results.
If you're the kind of person who leads with initiative, thrives in a fast-paced environment, and is eager to create real impact, we want you on our team.
Clearance:Active Top Secret clearance with an ability to obtain SCI access and willingness to obtain CI PolygraphUS Citizenship Required
*This job posting is for a potential upcoming opening, and we encourage interested candidates to apply for future consideration.As a SoftwareEngineer, you will...
Contribute to the design, development, testing and integration of new capabilities from an idea to production across a complex system
Integrate capabilities from different systems across the enterprise while the needs of users and stakeholders are met
Participate in daily standups, sprint and release planning activities, and coordinate with other team members (systems engineer, systems administrator, tester, etc.) to accomplish the tasks outlined in user stories
Write or contribute to documentation and end-user instructions/manuals, as necessary
SoftwareEngineer Qualifications...
Associate's or Bachelor's Degree in Computer Science or related field
5+ years of experience in software development with experience in all phases of the software development lifecycle (analysis, design, development, testing, deployment, maintenance)
Demonstrated experience developing with modern languages such as: Python, Ruby, Clojure, Java, JavaScript, etc.
Experience designing, developing, documenting, testing, and debugging software that contains logical and mathematical solutions to problems
Demonstrated experience using rapid prototyping and Agile based software development methodologies
GEOINT/SIGINT/IMINT domain knowledge
Additional Skills We'd Like to See:
Understanding of machine learning concepts
Experience with development in microservice based architectures
Understanding of web application development concepts and experience using web frameworks
Experience with container technologies and orchestration such as Docker, Docker Compose, Kubernetes, etc.
Experience with continuous integration and software CM processes / tools (Git, GitLab, GitLab CI, Jenkins, JIRA, Confluence)
AWS experience and/or AWS certification (Developer, DevOps and/or, Architect, etc.)
Security+ Certification
Highly preferred to have Python programming language experience
Salary Range: $115,000 - $170,000Salary is commensurate with experience.Who we are:Reinventing Geospatial, Inc. (RGi) is a fast-paced small business that has the environment and culture of a start-up, with the stability and benefits of a well-established firm. We solve complex problems within geospatial software development and national defense to make an Immediate Impact for our nation's soldiers and analysts.
We pride ourselves on giving employees an exceptional life experience, where creativity thrives, and challenges are simply part of the fun. We provide truly excellent benefits, including:
· 100% paid employee healthcare & dental insurance· Paid parental leave· 401k with matching· Escalating vacation time· Referral bonuses· Tuition reimbursement· Professional development training· Free beverages and snacks· Weekly catered lunches and breakfast on Fridays Grow to be our next leader:At RGi, fostering a strong and organic corporate culture is paramount and serves as a compass on the decisions we make and how we operate the company. We believe our culture of camaraderie, innovation, and collaboration reflects the caliber of our employees and their dedication to the mission of providing quality software to our customers. As such, we want our employees to feel empowered to seek growth and leadership opportunities within the company and position us to maintain our culture as we grow. RGi provides opportunities, resources, training, and mentorship to all our employees to let them take control of their careers and become a leader or a crucial member of our company. If this is what you are looking for in a company, then you are what we are looking for in an employee.
Reinventing Geospatial, Inc. is an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, sex, national origin, age, veteran status, disability, or any other protected class. U.S. Citizenship is required for all positions.
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.
$115k-170k yearly 6d ago
Software Engineer
London Stock Exchange Group
Principal software engineer job in Saint Louis, MO
LSEG offers essential platforms, financial data services and trading venues for various clients such as businesses, governments, and investors around the globe. The real-time market data, indices, analytics, and news services LSEG supplies allows traders and investors understand market conditions and trends. We deliver the infrastructure, data, and analytics that market participants rely on to make confident, informed investment decisions.
LSEG is dedicated to empowering economies and enabling sustainable growth by incorporating environmental, social, and governance (ESG) factors into its operations and offerings.
Within LSEG's Data and Analytics division, the Real-Time Distribution Development team plays a vital role in supporting LSEG's financial data distribution and fanout components.
We have responsibility for the design, implementation and continuous improvements of complex, low latency, high throughput software that makes the LSEG financial data distribution reliable, scalable and geographically resilient. Whether you are passionate about our consistently modernized on-prem enterprise solutions or tackling the challenges on our cloud applications in AWS and Azure, we have a place for you!
Our team thrives on inclusion, innovation, and high performance. Join us, and help shape the future of LSEG's platforms and services!
Job description :
* Design of software modules; implementation in C++, unit testing, integration testing, performance testing along with software packaging and configuration management.
* Participates in code/design reviews.
* Contributes toward product and internal documentation - technical specifications, software documentation and unit test plans.
* Assists in resolution of field problems as needed
* Partners with Quality Assurance to ensure high quality software, write Robot framework test cases using Python based key words
Qualifications :
* 3+ years of computer software development experience
* Experience developing in C++ and/or other Object Oriented programming languages, in a multi-threaded environment and real-time streaming type applications.
* strong working experience and troubleshooting skills in Linux.
* Familiarity with network programming and strong knowledge of networking concepts and protocols(TCP/IP, UDP, multicast).
* Strong written & verbal communication skills
* Experience with Cloud technology (AWS/AZURE) is a plus.
Compensation/Benefits Information:
LSEG is committed to offering competitive Compensation and Benefits. The anticipated base salary for this position is $95,700 - $159,700.
Please be aware base salary ranges may vary by geographic location, city and state. In addition to our offered base salary, this role is eligible for our Annual Incentive Plan (AIP/"bonus plan"). Target AIP rates will be commensurate with role level and posted career stage. Individual salary will be reflective of job related knowledge, skills and equivalent experience. LSEG roles (excluding internships and part-time roles of less than 20 hours per week) are typically eligible for inclusion in our LSEG Benefits program, which includes offerings of: Annual Wellness Allowance, Paid time-off, Medical, Dental, Vision, Flex Spending & Health Savings Options, Prescription Drug plan, 401(K) Savings Plan and Company match. LSEG's Benefits plan also includes basic life insurance, disability benefits, emergency backup dependent care, adoption assistance commuter assistance etc.
LSEG is a leading global financial markets infrastructure and data provider. Our purpose is driving financial stability, empowering economies and enabling customers to create sustainable growth.
Our purpose is the foundation on which our culture is built. Our values of Integrity, Partnership, Excellence and Change underpin our purpose and set the standard for everything we do, every day. They go to the heart of who we are and guide our decision making and everyday actions.
Working with us means that you will be part of a dynamic organisation of 25,000 people across 65 countries. However, we will value your individuality and enable you to bring your true self to work so you can help enrich our diverse workforce. You will be part of a collaborative and creative culture where we encourage new ideas and are committed to sustainability across our global business. You will experience the critical role we have in helping to re-engineer the financial ecosystem to support and drive sustainable economic growth. Together, we are aiming to achieve this growth by accelerating the just transition to net zero, enabling growth of the green economy and creating inclusive economic opportunity.
LSEG offers a range of tailored benefits and support, including healthcare, retirement planning, paid volunteering days and wellbeing initiatives.
We are proud to be an equal opportunities employer. This means that we do not discriminate on the basis of anyone's race, religion, colour, national origin, gender, sexual orientation, gender identity, gender expression, age, marital status, veteran status, pregnancy or disability, or any other basis protected under applicable law. Conforming with applicable law, we can reasonably accommodate applicants' and employees' religious practices and beliefs, as well as mental health or physical disability needs.
Please take a moment to read this privacy notice carefully, as it describes what personal information London Stock Exchange Group (LSEG) (we) may hold about you, what it's used for, and how it's obtained, your rights and how to contact us as a data subject.
If you are submitting as a Recruitment Agency Partner, it is essential and your responsibility to ensure that candidates applying to LSEG are aware of this privacy notice.
$95.7k-159.7k yearly Auto-Apply 60d+ ago
Internship (Summer 2026) - Software Engineering
Intramotev
Principal software engineer job in Saint Louis, MO
About Us:
At Intramotev, we are dedicated to revolutionizing the freight industry by liberating tons of freight from congested highways, reducing carbon emissions, and enhancing transportation efficiency. We are deploying self-propelled battery-electric railcars and vehicles to transform freight logistics and bring innovation to our rail network. Based in St. Louis, MO, we are committed to promoting industrial revitalization, saving lives, and minimizing the environmental impact of trucking/transportation. We actively foster a work environment for every teammate that's welcoming, respectful and inclusive, with great opportunities for professional growth. Find your future with us.
Role Overview:
We are seeking a SoftwareEngineering Intern to join the software development team to meet growing demands in the development of self-propelled rail vehicles. This role has a strong software focus, supporting innovative self-propelled capabilities in areas such as embedded software, user experience/user interfaces, back-end servers, computer vision, and control systems.
Schedule:
This is an internship for summer 2026. It is an hourly role, up to 40 hours/week, in-office position, based in St. Louis, MO.
Position Responsibilities:
Analyze and translate requirements into system architecture, hardware and software designs, and interface specifications.
Test and validate to ensure system designs meet operational and functional requirements.
Solve problems concerning and provide other support of fielded hardware and software over the entire product lifecycle.
Assist in system development and integration, debugging, and testing on target hardware.
Team Dynamics:
Work within dynamic teams on diverse projects, typically ranging from small (1-2) to medium (3-10) members.
Foster excellent interpersonal and communication skills to thrive in a collaborative environment.
Adapt to evolving project objectives and requirements, as the work often involves a research nature and prioritized capability enhancements.
Why Join Us
Career Growth: Develop your career with a forward-thinking company dedicated to transforming rail technology.
Innovative Environment: Contribute to groundbreaking projects that bridge the past and future of rail transport.
Impactful Work: Be a key player in creating solutions that promote a more sustainable and efficient rail/mobility network.
About You:
Basic Qualifications (Required Skills/Experience):
Working towards a Bachelor's Degree in Computer Science, Computer Engineering, or a related field (open to students after completing sophomore or junior years of school, as well as graduate students).
1+ years of previous internship, university research, or extra-curricular experience with software development.
Experience with C, C++, C#, or another object oriented programming language.
Experience with the software development life-cycle, including debugging and testing.
Must be legally authorized to work in the U.S. CPT/OPT is supported.
Fluent in both written and verbal English.
Preferred Qualifications (Desired Skills/Experience):
Experience with software version control tools such as git.
Coursework related to embedded systems, industrial controls, human/machine interface, or computer vision.
Demonstrated experience working on project teams.
Experience delivering product(s) to customer(s).
Typical Education and Experience:
Education/experience typically acquired through advanced technical education (e.g. Bachelor) and typically 1 or more years' related work (internship/cooperative work) or university research project experience.
Relocation:
This position does not offer relocation.
Equal Opportunity Employer
Intramotev is an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, national origin, gender, sexual orientation, gender identity, age, physical or mental disability, genetic factors, military/veteran status or other characteristics protected by law.
Communication:
Emails about this position will come from Breezy with from intramotev-autonomous-rail.breezy-mail.com domain. Please confirm that emails from that domain are being received successfully.
If you're passionate about softwareengineering and eager to contribute to autonomous rail technology, we'd love to hear from you!
$30k-51k yearly est. Auto-Apply 37d ago
Software Engineer II
Mastercard 4.7
Principal software engineer job in OFallon, MO
Our Purpose
Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential.
Title and Summary
SoftwareEngineer IIOverview:
Mastercard's Decision Management Platform team is seeking a Software Developer II to design, develop, and deliver scalable, secure, and high-quality software solutions. In this role, you will contribute to the full software development lifecycle, from analysis and design to implementation and ongoing support, while collaborating with cross-functional teams to meet evolving business needs.
You will play a vital role in a rapidly growing organization, working closely with experienced and driven engineers to solve complex challenges.
Engineers work in small, flexible teams, with every member contributing to the design, development, and testing of features. We follow an Agile approach to software development and practice continuous integration and delivery.
This is a hybrid position based in O'Fallon, MO requiring three days per week onsite.
Role:
• Design, develop, test, implement, and maintain software applications that align with Mastercard engineering standards and best practices.
• Deliver secure, reliable, and scalable software solutions within defined timelines and budgets.
• Research and evaluate alternative technical approaches to meet current and future business needs.
• Conduct feasibility studies, system flowcharting, and logic design to support solution development.
• Collaborate with team members and stakeholders to meet project goals, identify issues early, and recommend practical solutions.
• Independently manage assigned tasks and participate in production incident management and on-call rotations.
• Create and maintain comprehensive technical documentation in line with Mastercard's quality and governance standards.
• Assist senior engineers in updating documentation and templates to align with evolving project and technology needs.
• Contribute to process improvement initiatives and promote best practices in software development and delivery.
• Support the collection, analysis, and reporting of software and project performance metrics.
All About You:
• Proven experience in softwareengineering, architecture, or development.
• Strong hands-on experience in Java (Java 17 preferred) for developing scalable and high-performance applications.
• Familiarity with CI/CD tools such as Jenkins and Git.
• Working knowledge of cloud platforms (AWS preferred).
• Hands-on experience with containerization technologies (e.g., Docker).
• Experience developing with web technologies such as HTML, JavaScript, and frameworks like Angular or React.
• Solid understanding of database technologies, including both SQL and NoSQL systems.
• Experience developing and integrating RESTful APIs and working within microservices architectures.
• Strong grasp of object-oriented programming, software design patterns, and system performance optimization.
• Proficient in algorithms, data structures, and distributed systems concepts.
• Experience in Agile environments (e.g., Scrum or Kanban) with continuous integration and iterative delivery models.
• Passionate about solving complex, real-world challenges through technology.
• Self-motivated and proactive, with the ability to take ownership and deliver results in fast-paced, collaborative settings.
• Excellent verbal and written communication skills, capable of explaining complex technical concepts to diverse audiences.
• Bachelor degree in Computer Science, SoftwareEngineering, Information Technology, Mathematics, or a related field. Equivalent practical experience may also be considered.
This role is not eligible for Mastercard's work authorization sponsorship. As such, candidates must be eligible to work in the United States, now as well as in the future, without employer sponsorship.
#LI-NF1
#AI3Mastercard is a merit-based, inclusive, equal opportunity employer that considers applicants without regard to gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law. We hire the most qualified candidate for the role. In the US or Canada, if you require accommodations or assistance to complete the online application process or during the recruitment process, please contact reasonable_accommodation@mastercard.com and identify the type of accommodation or assistance you are requesting. Do not include any medical or health information in this email. The Reasonable Accommodations team will respond to your email promptly.
Corporate Security Responsibility
All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:
Abide by Mastercard's security policies and practices;
Ensure the confidentiality and integrity of the information being accessed;
Report any suspected information security violation or breach, and
Complete all periodic mandatory security trainings in accordance with Mastercard's guidelines.
In line with Mastercard's total compensation philosophy and assuming that the job will be performed in the US, the successful candidate will be offered a competitive base salary and may be eligible for an annual bonus or commissions depending on the role. The base salary offered may vary depending on multiple factors, including but not limited to location, job-related knowledge, skills, and experience. Mastercard benefits for full time (and certain part time) employees generally include: insurance (including medical, prescription drug, dental, vision, disability, life insurance); flexible spending account and health savings account; paid leaves (including 16 weeks of new parent leave and up to 20 days of bereavement leave); 80 hours of Paid Sick and Safe Time, 25 days of vacation time and 5 personal days, pro-rated based on date of hire; 10 annual paid U.S. observed holidays; 401k with a best-in-class company match; deferred compensation for eligible roles; fitness reimbursement or on-site fitness facilities; eligibility for tuition reimbursement; and many more. Mastercard benefits for interns generally include: 56 hours of Paid Sick and Safe Time; jury duty leave; and on-site fitness facilities in some locations.
Pay Ranges
O'Fallon, Missouri: $92,000 - $147,000 USD
$92k-147k yearly Auto-Apply 44d ago
Associate Software Developer
Blitt and Gaines PC 3.6
Principal software engineer job in Saint Louis, MO
Job Title: Associate Software Developer
As an associate software developer, you will be working with Blitt and Gaines, P.C.'s product development team, building and testing automation applications utilizing SQL, C#, Python and Power BI. This role will also continually review the historical and on-going accuracy and integrity of the data and reports generated from our systems.
This is an experienced level position with opportunity for potential advancement into further development roles within the firm. You will report to the Director of Development and work to build a variety of types of applications for our firm.
Key Responsibilities:
· Assist in the design and development of stored procedures and database queries to generate data for reports and dashboards.
· Support the development of automation tools and backend processes using C# or Python.
· Help build and maintain web services and APIs for internal and external applications.
· Collaborate with senior developers and analysts to understand business needs and deliver effective technical solutions.
· Participate in source control workflows using Git and project tracking through Azure DevOps.
· Contribute to the maintenance and evolution of CI/CD pipelines, including testing, builds, and deployment steps.
· Perform basic debugging and troubleshooting under the guidance of senior team members.
· Participate in code reviews, team meetings, and agile ceremonies.
Minimum Requirements:
· 1-2 years of experience with C# or Python in a professional or internship setting.
· Basic experience writing and maintaining SQL queries or stored procedures.
· Familiarity with REST APIs and how to interact with them.
· Exposure to Azure DevOps, Git, or similar tools for version control and project management.
· Basic understanding of CI/CD pipelines and software development best practices.
· Strong willingness to learn, take feedback, and grow technical skills.
· Good communication and teamwork skills.
Preferred Qualifications:
· Coursework or hands-on experience with web service development or automation scripting.
· Exposure to Azure cloud services or other cloud platforms (AWS, GCP).
· Familiarity with reporting or BI tools such as Power BI or SSRS.
· Understanding of agile development and software delivery practices.
Nice to Haves:
· Familiarity with Collection Master software
· Experience in the litigation or collections industry
· Experience with generating AI prompts and implementing AI solutions
· React or other front-end web languages
Benefits:
Blitt and Gaines, P.C. offers PTO, Paid Holidays, Medical Benefits, Competitive Salary and 401k and profit sharing plans! Medical Benefits include - Medical, Dental, Vision, Life Insurance and Short Term Disability.
$67k-86k yearly est. 40d ago
Software Engineer - (.NET/UI)
Helioz Solutions
Principal software engineer job in Chesterfield, MO
Helioz Solutions (HS) is a global software services firm that helps clients with IT development, management, and staffing needs. We provide cutting-edge application development, quality assurance and testing, systems integration, project and program management, and enterprise level softwareengineering and infrastructure management services.
We work closely with our clients to develop, from conception to final deployment, effective and scalable solutions for data analytics, cloud based services, cyber security, business continuity, risk mitigation, and emerging technologies. At HS, we take great pride in tailoring solutions to best fit our clients' needs.
Job Description
Role: SoftwareEngineer - (.NET/UI)
Location: St. Louis, MO
Duration: 6+ Months
Top Skills:
ASP.NET, RESTful web services, MVC, HTML5 , JavaScript, JQuery, Sql Server ,Bootstrap and API .
Role and Responsibility:
• The candidate must have proven experience as a senior softwareengineer with a focus on user interface implementations
• Must be able to own and lead a new module or enhancement to ensure project work is reviewed, tested and delivered on time
• Participate in all phases of the Agile software development lifecycle while working with cross-functional team members in a highly collaborative development environment
• Responsible for developing the presentation layer based on ASP.NET and client-side web technologies
• Responsible for consuming RESTful web-services in a Service-Oriented Architecture
• Work directly with partners on the integration of outside solutions into Lumeris' application frameworks
• Evangelize newly developed best practices, software development techniques, and frameworks with other teams within the organization
• Identify and implement best practices and company standards for software development
• Continually build the skills of colleagues through peer collaboration, mentoring and training
Qualifications
Experience, Qualifications and Education:
• Bachelor's Degree in Computer Science or related field or equivalent job-related experience
• Requires at least 5 years development experience in an enterprise development environment
• Requires at least 3 years HTML5/Responsive user experience development experience
• Requires in-depth knowledge of software development lifecycles and their utilization in software projects
• Requires mastery of web MVC frameworks; greatly beneficial to have experience with MVC 5
• Requires mastery of responsive web design; greatly beneficial to have experience with frameworks like Bootstrap
• Requires mastery of programming techniques and methodologies in JavaScript and JQuery
• Requires mastery of RESTful web services that meet industry standard maturity models; greatly beneficial to have experience with ASP.NET Web API 2
• Requires mastery of Object Oriented Programming techniques and methodologies in C#
• Requires familiarity with Microsoft SQL Server
• Requires understanding of versioning software and CI/CD workflows; greatly beneficial to have experience with the Atlassian toolset
• Requires solid communication and interpersonal skills; with the ability to work constructively in a collaborative Agile team environment
• Requires strong problem-solving ability, analytical, and design skills
• Greatly beneficial to have previous experience in the healthcare industry
• Greatly beneficial to have hands-on experience in the Cloud; specifically, AWS
Additional Information
send your resume to apply (dot) **************************
$59k-79k yearly est. Easy Apply 18h ago
Full Stack Software Engineer
RGI General Contractors 4.2
Principal software engineer job in Saint Louis, MO
Reinventing Geospatial (RGi) is a leading expert in geospatial solutions for Defense, Intelligence, and Federal clients. We enhance situational awareness for soldiers and analysts by integrating software development with geospatial intelligence. Our projects range from data collection to advanced deep learning, leveraging tools like Python, Java, and ArcGIS.
We don't just fill roles we build teams of high performers and leaders who make an immediate impact. At our core, we're driven by innovation and powered by people who work at the intersection of passion and performance. Here, you'll collaborate with bold thinkers, leverage cutting edge technology, and tackle meaningful challenges from day one.
Our culture is defined and anchored by three pillars:
Energy: We bring passion, purpose, and urgency to our work.Edge: We take initiative, embrace growth, and step outside our comfort zone.Execution: We get things done smartly, decisively, and with real results.
If you're the kind of person who leads with initiative, thrives in a fast-paced environment, and is eager to create real impact, we want you on our team.
Clearance:Active Top Secret clearance with an ability to obtain SCI access and willingness to obtain CI PolygraphUS Citizenship Required
*This job posting is for a potential upcoming opening, and we encourage interested candidates to apply for future consideration.As a Full Stack SoftwareEngineer, you will...
Develop, deploy, and maintain cloud-based services using AWS Lambda, EC2, and other core AWS services.
Write and maintain code in C#, Java, JavaScript/TypeScript, Python, and Shell scripting.
Create, document, and manage new and existing functionality in GitLab repositories.
Apply DevOps practices and tools to deliver new features within an Agile environment.
Participate in Agile ceremonies (standups, sprint planning, increment planning) using Jira and Confluence.
Perform system administration and modify existing GOTS code to integrate open-source software solutions into web applications.
Design and implement APIs and database integrations that interact with Redux and React frameworks.
Integrate open-source packages for data visualization and data filtering.
Ensure code quality by applying unit testing and build testing best practices across all development efforts.
Collaborate with team members to assess tickets, test functionality, and deliver features that meet User Story Acceptance Criteria.
Full Stack SoftwareEngineer Qualifications...
Requires BS degree and 4+ years of prior relevant experience or Masters with 2+ years of prior relevant experience.
Must have an active Top Secret to be considered and ability to obtain TS/SCI clearance prior to start and willingness and ability to obtain a Polygraph
Minimum 3 years of experience with REACT or modern JavaScript framework.
Minimum 3 years of experience with Python, C# development framework
At least 3 years of experience with unit testing, continuous integration tools, and Gitlab version control
Proactive self-starter demonstrates a positive, willing attitude and excellent oral and written communication skills.
Experience in either software development projects or software integration projects in a service-oriented environment (Cloud, SOA, Web-Services) or virtualization environment.
Organizational Skills: Can plan and prioritize work. Follows tasks to their logical conclusion and makes sure that everything has been done to the right standard. Good attention to detail.
Communications: Ability to communicate clearly and efficiently to team members and clients, verbally and in writing. Able to present ideas in a variety of ways depending upon audience and context.
Additional Skills We'd Like to See:
AWS Developer Solutions Mindset
At least 3 years of experience with Linux and/or Windows system administration
At least 2 years of experience with DoD Aeronautical Datasets
At least 1 year of experience with AWS cloud formation templates
At least 1 year of experience with Node, NPM, Swashbuckle, REST API, Sass
AWS Solutions, Developer, DevOps certification
Team Collaboration tools (Jira, Confluence)
DOD 8570 Compliant Certification (Sec+)
Who we are:Reinventing Geospatial, Inc. (RGi) is a fast-paced small business that has the environment and culture of a start-up, with the stability and benefits of a well-established firm. We solve complex problems within geospatial software development and national defense to make an Immediate Impact for our nation's soldiers and analysts.
We pride ourselves on giving employees an exceptional life experience, where creativity thrives, and challenges are simply part of the fun. We provide truly excellent benefits, including:
· 100% paid employee healthcare & dental insurance· Paid parental leave· 401k with matching· Escalating vacation time· Referral bonuses· Tuition reimbursement· Professional development training· Free beverages and snacks· Weekly catered lunches and breakfast on Fridays Grow to be our next leader:At RGi, fostering a strong and organic corporate culture is paramount and serves as a compass on the decisions we make and how we operate the company. We believe our culture of camaraderie, innovation, and collaboration reflects the caliber of our employees and their dedication to the mission of providing quality software to our customers. As such, we want our employees to feel empowered to seek growth and leadership opportunities within the company and position us to maintain our culture as we grow. RGi provides opportunities, resources, training, and mentorship to all our employees to let them take control of their careers and become a leader or a crucial member of our company. If this is what you are looking for in a company, then you are what we are looking for in an employee.
Reinventing Geospatial, Inc. is an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, sex, national origin, age, veteran status, disability, or any other protected class. U.S. Citizenship is required for all positions.
$56k-72k yearly est. Auto-Apply 60d+ ago
Software Engineering Co-Op
Watlow Controls 4.6
Principal software engineer job in Saint Louis, MO
About the Role Join Watlow's Systems Engineering team and help shape the future of our Digital Twin and Manufacturing Automation initiatives. This co-op blends softwareengineering, data systems, and shop-floor integration to improve how we collect data, automate workflows, and visualize processes across global operations.
You'll collaborate with engineers, operators, and IT specialists to design Python-based solutions that make our manufacturing systems smarter, faster, and more connected.
Key Responsibilities
Develop Python-based web apps to capture and visualize shop-floor data in Azure cloud databases.
Build and maintain data pipelines to Databricks for trend and performance analysis.
Design Raspberry Pi + camera systems for part tracking and operator assistance.
Replace legacy automation (e.g., auto-clickers) with robust Python automation and APIs.
Integrate shop-floor data with company-wide digital systems and dashboards.
Write clean, documented code and create user-friendly interfaces for operators and engineers.
Desired Skills
Proficient in Python (object-oriented programming, automation, data handling).
Familiar with Flask, FastAPI, or Django for web development.
Basic knowledge of databases (SQL/NoSQL) and Azure or other cloud services
Basic knowledge of pulling and pushing data through APIs.
Experience with OpenCV, Raspberry Pi, or sensor integration is a plus.
Interest in machine learning or identifying automation patterns in manufacturing data.
Strong communication skills and willingness to work in a hands-on, cross-functional environment.
Preferred Majors
Computer Engineering
Computer Science
Electrical Engineering
Mechanical Engineering (with Python programming experience)
Biomedical Engineering (with Python/Image processing)
Industrial & Systems Engineering
Mechatronics/Robotics Engineering
Information Systems/IT or related STEM fields
What You'll Gain
Real-world experience applying software to manufacturing and digital transformation.
Exposure to hardware/software integration and automation.
Collaboration with cross-functional teams in engineering, IT, and operations.
The chance to see your code implemented directly on the shop floor to drive measurable impact.
Applicants must be authorized to work for any employer now or in the future in the U.S. We are unable to sponsor or take over sponsorship of an employment visa at this time.
$68k-88k yearly est. 60d+ ago
Mid Software Engineer
Momentum 4.6
Principal software engineer job in Saint Louis, MO
Welcome to the
MOMENTUM.
Team!
MOMENTUM.
is not just our company name; it is the highest value we deliver to our customers. We are a rapidly growing technology solutions company delivering innovative technology, engineering, and intelligence solutions across the DoD sector. The efforts of our high-capacity team ultimately strengthen our Nation and the warfighter.
Our team is dispersed throughout the US, which means we value the diversity and unique collaboration fostered throughout our team. We work incredibly hard for our customers and believe deeply in our core values. We're a high-energy, high-growth team and we love to win.
Mid SoftwareEngineer
MOMENTUM.
is seeking a Mid SoftwareEngineer to join our team in St. Louis, MO, supporting a mission-critical geospatial application. This role requires strong full-stack Python experience, with a focus on API development, Kubernetes deployment, and modern DevOps practices to accelerate delivery. The engineer will work with an existing code baselearning it quickly, manipulating it for adjacent use cases, and implementing new features that advance mission capabilities. A background in geospatial systems, imagery acquisition, and geometry is a significant plus. Candidates must be passionate about modern architectures, able to adapt quickly to existing systems, and excited to tackle challenging technical problems for our mission users.
In this role, you will:
Strong full-stack Python development experience
Experience building and maintaining APIs (ex. FastAPI)
Experience with Kubernetes and DevOps practices to support rapid deployment and sustainment.
Proven ability to work with pre-existing code bases, understand them quickly, and adapt functionality for new use cases.
Experience with web services architecture, design, and development.
Background working in secure cloud environments (e.g., AWS GovCloud, C2S).
Understanding of geospatial systems, including imagery acquisition, geometry, and related workflows.
Familiarity with geospatial data tools and libraries (e.g., PostGIS, ArcGIS, GDAL).
Prior exposure to DoD/IC mission applications.
If you're right for this role, you have:
Active Top-Secret Clearance with the ability to obtain an SCI
BS or equivalent in Computer Science, Engineering, Mathematics, Information Systems, or equivalent technical degree.
5+ years with a Bachelor's degree in a technical field, or 3+ years with a Master's in a technical field
To learn more about us, check out our website at ********************
MOMENTUM.
is an EEO/M/F/Veteran/Disabled Employer:
We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability status, protected veteran status, or any other characteristic protected by law.
To perform this job successfully, an individual must be able to perform each essential duty satisfactorily. The qualifications listed above are representative of the knowledge, skill, and ability required. Reasonable accommodations may be made to enable individuals with disabilities to perform essential functions.
Accommodations:
Consistent with the Americans with Disabilities Act (ADA) and Alabama civil rights law, it is the policy of
MOMENTUM.
to provide reasonable accommodation when requested by a qualified applicant or employee with a disability, unless such accommodation would cause an undue hardship. The policy regarding requests for reasonable accommodation applies to all aspects of employment, including the application process. If reasonable accommodation is needed, please include a request when applying.
Principal software engineer job in Saint Louis, MO
North Point Technology is seeking an experienced Software Developer to join our mission-driven team supporting the National Geospatial-Intelligence Agency (NGA). This position plays a critical role in advancing NGA's Geospatial Intelligence (GEOINT) capabilities - measuring, modeling, and visualizing the Earth in precise 3D detail to enable global intelligence and defense missions.
The ideal candidate is a motivated problem-solver and skilled developer who thrives in collaborative, agile environments. You'll work hands-on with .NET technologies, build robust software components, and help ensure the reliability and integrity of critical geospatial systems.
This program requires employees to have an active TS clearance
Responsibilities:
As a key member of our development team, you'll:
Design, develop, and integrate .NET-based software components and applications.
Debug, test, and validate new and existing code to maintain system stability and data integrity.
Contribute to Agile development cycles, participating in standups, sprint planning, and retrospectives.
Write and maintain automated unit and validation tests to support continuous integration and delivery.
Collaborate closely with system engineers, analysts, and developers to ensure solutions align with mission goals.
Support ongoing software sustainment, ensuring long-term reliability and scalability of deployed systems.
Leverage tools like GitLab, Jira, and Confluence to track progress, manage tasks, and document work.
Required Skills/Experience:
Technical Skills:
Strong proficiency in C#, VB.NET, C++, and WPF within the Microsoft .NET ecosystem
Experience working with large codebases and writing testable, maintainable software
Familiarity with PostgreSQL or similar relational databases
Understanding of Cloud, SOA, Web Services, or virtualization environments
Experience with Git/GitLab for version control and Jira/Confluence for collaboration
Solid understanding of software development and sustainment methodologies
Professional Skills:
Excellent written and verbal communication abilities
Strong organizational skills with attention to detail
Proactive, self-motivated, and comfortable taking ownership of assigned tasks
Preferred Skills/Experience
Prior experience supporting NGA or other Intelligence Community customers
Working knowledge of AWS and cloud-native technologies
Microsoft certifications in software development or systems engineering
Hands-on GIS (Geospatial Information Systems) experience
North Point Technology is THE BEST place to work for curious-minded engineers motivated to support our country's most crucial missions! We focus on long term projects, leveraging the latest technology in support of innovative solutions to solve our customer's most difficult problems.
At North Point Technology, EMPLOYEES come first! We value our employees by providing excellent compensation, benefits, and a flexible work-life balance. We strive for a close-knit and open atmosphere where the owners are always directly available to our team members.
Come join us! Apply with North Point Technology today!
For positions requiring a federal security clearance, your clearance level must be clearly identified on your resume.
$60k-80k yearly est. Auto-Apply 5d ago
Java Software Engineer
Pangaea 4.2
Principal software engineer job in Saint Louis, MO
We are currently in search of an experienced SoftwareEngineer with a degree in Computer Science and 5+ years' experience developing JavaFX and\/or Swing applications. The successful candidate will work to develop and maintain several Java applications that interact with hardware by way of interfaces to firmware developed in\-house. Knowledge of RFID (Radio Frequency Identification) technology would be beneficial, but is not required. Must be comfortable working in a fast\-paced startup environment, and be able to take initiative in providing solutions to problems as they arise. This is an exciting opportunity to be part of startup that is revolutionizing the way that RFID is used!
Responsibilities:
\-Develop and implement new software programs
\-Maintain and improve the performance of existing software
\-Clearly and regularly communicate with management and technical support colleagues
\-Design and update software databases
\-Test and maintain software products to ensure strong functionality and optimization
\-Recommend improvements to existing software programs as necessary
Qualifications:
\-Bachelor's Degree in Computer Science
\-5+ years' experience in web and software development using Java
\-Demonstrated knowledge of web technologies, such as HTML, CSS and JavaScript
\-Ability to work independently and multi\-task effectively
\-Demonstrated understanding of projects from the perspective of both client and business
\-Flexible and willing to accept a change in priorities as necessary
\-Strong attention to detail
Required skills: Desired skills:
• \-Java • \-Regular Expressions
• \-JavaFX or Swing • \-MongoDB
• \-MySQL • \-Excel
• \-Hibernate • \-Visual Basic
• \-JSON • \-Spring
• \-Javascript\/CSS\/HTML • \-Thymeleaf
• \-Windows OS • \-SCPI
• \-TCP\/IP, DNS, Sockets • \-Inno Setup
• \-Multithreading • \-PHP
• \-Linux OS
• \-Bash scripting
• \-OpenSSL
Requirements
Qualifications:
\-Bachelor's Degree in Computer Science
\-5+ years' experience in web and software development using Java
\-Demonstrated knowledge of web technologies, such as HTML, CSS and JavaScript
\-Ability to work independently and multi\-task effectively
\-Demonstrated understanding of projects from the perspective of both client and business
\-Flexible and willing to accept a change in priorities as necessary
\-Strong attention to detail
Required skills: Desired skills:
• \-Java • \-Regular Expressions
• \-JavaFX or Swing • \-MongoDB
• \-MySQL • \-Excel
• \-Hibernate • \-Visual Basic
• \-JSON • \-Spring
• \-Javascript\/CSS\/HTML • \-Thymeleaf
• \-Windows OS • \-SCPI
• \-TCP\/IP, DNS, Sockets • \-Inno Setup
• \-Multithreading • \-PHP
• \-Linux OS
• \-Bash scripting
• \-OpenSSL
Benefits Excellent Benefits Package
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•\-Demonstrated understanding of projects from the perspective of both client and business
•\-Flexible and willing to accept a change in priorities as necessary
•\-Strong attention to detail
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• \-MySQL • \-Excel
• \-Hibernate • \-Visual Basic
• \-JSON • \-Spring
• \-Javascript\/CSS\/HTML • \-Thymeleaf
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$60k-80k yearly est. 60d+ ago
Software Engineer, Public Sector
Scale Ai Inc. 4.1
Principal software engineer job in Saint Louis, MO
Scale AI is seeking highly skilled and motivated SoftwareEngineers to join our dynamic Federal Engineering team. As a part of this team, you will play a critical role in delivering high-impact AI-powered mission solutions for government customers. Our scalable and high-performance platform forms the foundation for these solutions, and your expertise will be instrumental in designing and implementing systems that can handle billions of data points with exceptional performance.
You will:
Design and implement scalable backend systems for Federal customers, leveraging Scale's modern and cloud-native AI infrastructure
Collaborate with cross-functional teams to define and execute the vision for backend solutions, ensuring they meet the unique needs of government agencies operating in secure environments
Develop distributed systems, data-intensive applications, and machine learning infrastructure to enable real impact for mission owners
Build robust and reliable backend systems that can serve as standalone products, empowering customers to accelerate their own AI ambitions
Participate actively in customer engagements, working closely with stakeholders to understand requirements and deliver innovative solutions
Contribute to the platform roadmap and product strategy for Scale AI's Federal business, playing a key role in shaping the future direction of our offerings
This role will require an active TS/SCI security clearance or the ability to obtain a security clearance.
Ideally you'd have:
Full Stack Development: Proficiency in both front-end and back-end development, including experience with modern web development frameworks, programming languages, and databases
Cloud-Native Technologies: Familiarity with cloud platforms (e.g., AWS, Azure, GCP) and experience in developing and deploying applications in a cloud-native environment. Understanding of containerization (e.g., Docker) and container orchestration (e.g., Kubernetes) is a plus
Data Engineering: Knowledge of ETL (Extract, Transform, Load) processes and experience in building data pipelines to integrate and process diverse data sources. Understanding of data modeling, data warehousing, and data governance principles
Machine Learning Infrastructure: Familiarity with machine learning frameworks (e.g., TensorFlow, PyTorch) and experience in designing and implementing machine learning infrastructure. Understanding of model serving, monitoring, and deployment strategies is beneficial
Problem Solving: Strong analytical and problem-solving skills to understand complex challenges and devise effective solutions. Ability to think critically, identify root causes, and propose innovative approaches to overcome technical obstacles
Collaboration and Communication: Excellent interpersonal and communication skills to effectively collaborate with cross-functional teams, stakeholders, and customers. Ability to clearly articulate technical concepts to non-technical audiences and foster a collaborative work environment
Adaptability and Learning Agility: Willingness to embrace new technologies, learn new skills, and adapt to evolving project requirements. Ability to quickly grasp and apply new concepts and stay up-to-date with emerging trends in softwareengineering
Compensation packages at Scale for eligible roles include base salary, equity, and benefits. The range displayed on each job posting reflects the minimum and maximum target for new hire salaries for the position, determined by work location and additional factors, including job-related skills, experience, interview performance, and relevant education or training. Scale employees in eligible roles are also granted equity based compensation, subject to Board of Director approval. Your recruiter can share more about the specific salary range for your preferred location during the hiring process, and confirm whether the hired role will be eligible for equity grant. You'll also receive benefits including, but not limited to: Comprehensive health, dental and vision coverage, retirement benefits, a learning and development stipend, and generous PTO. Additionally, this role may be eligible for additional benefits such as a commuter stipend.
Please reference the job posting's subtitle for where this position will be located. For pay transparency purposes, the base salary range for this full-time position in the locations of San Francisco, New York, Seattle is:$184,000-$292,560 USDThe base salary range for this full-time position in the locations of Washington DC, Texas, Colorado is:$165,600-$263,304 USDThe base salary range for this full-time position in the location of Hawaii/St. Louis is:$138,000-$219,420 USD
PLEASE NOTE:
Our policy requires a 90-day waiting period before reconsidering candidates for the same role. This allows us to ensure a fair and thorough evaluation of all applicants.
About Us:
At Scale, our mission is to develop reliable AI systems for the world's most important decisions. Our products provide the high-quality data and full-stack technologies that power the world's leading models, and help enterprises and governments build, deploy, and oversee AI applications that deliver real impact. We work closely with industry leaders like Meta, Cisco, DLA Piper, Mayo Clinic, Time Inc., the Government of Qatar, and U.S. government agencies including the Army and Air Force. We are expanding our team to accelerate the development of AI applications.
We believe that everyone should be able to bring their whole selves to work, which is why we are proud to be an inclusive and equal opportunity workplace. We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability status, gender identity or Veteran status.
We are committed to working with and providing reasonable accommodations to applicants with physical and mental disabilities. If you need assistance and/or a reasonable accommodation in the application or recruiting process due to a disability, please contact us at accommodations@scale.com. Please see the United States Department of Labor's
Know Your Rights poster
for additional information.
We comply with the United States Department of Labor's
Pay Transparency provision
.
PLEASE NOTE: We collect, retain and use personal data for our professional business purposes, including notifying you of job opportunities that may be of interest and sharing with our affiliates. We limit the personal data we collect to that which we believe is appropriate and necessary to manage applicants' needs, provide our services, and comply with applicable laws. Any information we collect in connection with your application will be treated in accordance with our internal policies and programs designed to protect personal data. Please see our privacy policy for additional information.
$60k-80k yearly est. Auto-Apply 7d ago
Software Engineer, Platform - St. Louis, USA
Speechify
Principal software engineer job in Saint Louis, MO
The mission of Speechify is to make sure that reading is never a barrier to learning.
Over 50 million people use Speechify's text-to-speech products to turn whatever they're reading - PDFs, books, Google Docs, news articles, websites - into audio, so they can read faster, read more, and remember more. Speechify's text-to-speech reading products include its iOS app, Android App, Mac App, Chrome Extension, and Web App. Google recently named Speechify the Chrome Extension of the Year and Apple named Speechify its 2025 Design Award winner for Inclusivity.
Today, nearly 200 people around the globe work on Speechify in a 100% distributed setting - Speechify has no office. These include frontend and backend engineers, AI research scientists, and others from Amazon, Microsoft, and Google, leading PhD programs like Stanford, high growth startups like Stripe, Vercel, Bolt, and many founders of their own companies.
Overview
The responsibilities of our Platform team include building and maintaining all backend services, including, but not limited to, payments, analytics, subscriptions, new products, text to speech, and external APIs.
This is a key role and ideal for someone who thinks strategically, enjoys fast-paced environments, is passionate about making product decisions, and has experience building great user experiences that delight users.
We are a flat organization that allows anyone to become a leader by showing excellent technical skills and delivering results consistently and fast. Work ethic, solid communication skills, and obsession with winning are paramount.
Our interview process involves several technical interviews and we aim to complete them within 1 week.
What You'll Do
Design, develop, and maintain robust APIs including public TTS API, internal APIs like Payment, Subscription, Auth and Consumption Tracking, ensuring they meet business and scalability requirements
Oversee the full backend API landscape, enhancing and optimizing for performance and maintainability
Collaborate on B2B solutions, focusing on customization and integration needs for enterprise clients
Work closely with cross-functional teams to align backend architecture with overall product strategy and user experience
An Ideal Candidate Should Have
Proven experience in backend development: TS/Node (required)
Direct experience with GCP and knowledge of AWS, Azure, or other cloud providers
Efficiency in ideation and implementation, prioritizing tasks based on urgency and impact
Preferred: Experience with Docker and containerized deployments
Preferred: Proficiency in deploying high availability applications on Kubernetes
What We Offer
A dynamic environment where your contributions shape the company and its products
A team that values innovation, intuition, and drive
Autonomy, fostering focus and creativity
The opportunity to have a significant impact in a revolutionary industry
Competitive compensation, a welcoming atmosphere, and a commitment to an exceptional asynchronous work culture
The privilege of working on a product that changes lives, particularly for those with learning differences like dyslexia, ADD, and more
An active role at the intersection of artificial intelligence and audio - a rapidly evolving tech domain
The United States Based Salary range for this role is: 140,000-200,000 USD/Year + Bonus + Stock depending on experience
Think you're a good fit for this job?
Tell us more about yourself and why you're interested in the role when you apply.
And don't forget to include links to your portfolio and LinkedIn.
Not looking but know someone who would make a great fit?
Refer them!
Speechify is committed to a diverse and inclusive workplace.
Speechify does not discriminate on the basis of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status.
$59k-79k yearly est. Auto-Apply 12d ago
Back End Software Engineer (Top Secret Cleared)
Latitude Inc.
Principal software engineer job in Saint Louis, MO
We are seeking a talented Back End SoftwareEngineer to design, develop, and maintain scalable, secure, and high-performance server-side applications. The ideal candidate will have strong proficiency in Python and experience working with C# or Java, enabling effective collaboration across diverse projects and technology stacks. This role involves working closely with front-end developers, DevOps engineers, and product teams to deliver efficient and reliable software solutions.
Active Top Secret clearance or higher is required Responsibilities:
Design, build, and maintain robust, scalable, and efficient back-end systems and APIs.
Develop new features and enhance existing services using Python and C# or Java.
Collaborate with cross-functional teams to define, design, and ship new features.
Optimize applications for maximum performance, reliability, and scalability.
Implement and maintain database schemas, queries, and data models (SQL and NoSQL).
Ensure code quality through peer reviews, automated testing, and CI/CD practices.
Write clear, maintainable, and well-documented code.
Participate in architectural design discussions and technical decision-making.
Troubleshoot, debug, and resolve production issues in a timely manner.
$59k-79k yearly est. Auto-Apply 60d+ ago
Mid-level Software Engineer
DLS Engineering 3.9
Principal software engineer job in Saint Louis, MO
Mid-level SoftwareEngineer at DLS Engineering (on-site)
DLS Engineering is seeking a Mid-level SoftwareEngineer for a full-time position supporting a geospatial customer in St. Louis, Missouri. This is an on-site position.
Why this role is a great next step for your career:
This position supports an exciting modernization initiative providing enterprise architectural, engineering, operations and sustainment, modification, and testing of geospatial-intelligence core services. This utilizes secure cloud environments, and a modern agile development methodology making data accessible, discoverable, and deliverable.
St. Louis offers a low cost of living, vibrant cultural scene, and abundance of free attractions and outdoor spaces. It offers a mix of big-city amenities and smaller-town charm, with unique neighborhoods, diverse food options, professional sports teams, and a growing technology sector.
A day in the life:
Creating, maintaining, and/or improving the performance of existing software code, with duties to write and update software code and databases under direction from the assigned Government Lead.
When I read the below it sounds like me:
Domain knowledge and hands-on experience in developing and implementing software programs.
Proven ability writing test scripts, test driven development, in an agile software development environment, where building in automated test procedures in addition to functional code are paramount to continuous integration and continuous delivery of software.
Clear communication skills
Required Security Clearance: Top Secret/SCI
Required: United States Citizenship
Required Education/Experience:
A Master of Science or equivalent degree in Computer Science, Engineering, Mathematics, Information Systems, Cybersecurity, or equivalent technical degree and a minimum of 2 years of experience in full stack development to include Java, Web services, Database, and micro-service development software, engineering/development, or a related area that demonstrates the ability to successfully perform the duties associated with this work.
OR, a Bachelor of Science or equivalent degree in Computer Science, Engineering, Mathematics, Information Systems or equivalent technical degree and a minimum of 4 years of experience in full stack development to include Java, Web services, Database, and micro-service development software, or engineering/development.
OR, a minimum, as equivalent to education, of 6 years of experience in softwareengineering/development, or a related area that demonstrates the ability to successfully perform the duties associated with this work may be substituted for a technical degree.
Required technical skills in at least two of the following:
Java, JavaScript, or Python enterprise application development
Web services architecture, design, and development
Relational database design
Other information:
We offer a competitive salary and a 401k program with company match.
We offer a comprehensive benefits package including health, vision, dental, life, and disability insurance.
We offer a generous paid time off package
If accommodation is needed with the application and / or the interview process for applicants with disabilities, please contact Human Resources at ************.
DLS is an E-Verify company.
DLS is an equal employment opportunity employer. Qualified applicants will receive consideration without regard to age, race, religion, sex (pregnancy, sexual orientation, gender identity), national origin, or disability. We encourage all qualified applicants to apply. If you believe you have been discriminated against, please contact Barbara Ellison. You also have the right to file a charge of discrimination with the equal employment opportunity commission.
Must be able pass a government background check, which will be completed before employment.
$60k-80k yearly est. 11d ago
Software Engineer II
Stillfront
Principal software engineer job in Maryland Heights, MO
Join our Engineering team at Simutronics!
In this SoftwareEngineer II role, you will be responsible for contributing to the design, development, and ongoing maintenance of production software systems. With a high degree of autonomy, you will own moderately complex technical tasks, and collaborate closely with the Lead Engineer and broader engineering team to deliver stable, scalable, and maintainable solutions.
As a reliable individual contributor who understands client-server architectures, you will work effectively within established systems, and demonstrate strong organizational and problem-solving skills. This role participates in an on-call rotation to support live systems and is expected to respond to production issues as needed.
YOUR RESONSIBILITIES
Design, implement, and maintain software components and services within existing systems
Contribute to architectural discussions and technical decision-making under the guidance of the Lead Engineer
Develop and maintain code using languages and frameworks appropriate to the project, including compiled and managed languages
Work effectively with client-server workflows and networked systems
Diagnose, troubleshoot, and resolve defects and production issues, including participation in an on-call rotation
Maintain and improve legacy systems while contributing to new development
Write clear, maintainable, and well-documented code following established standards
Participate in code reviews, testing, and quality assurance processes
Manage assigned work independently, balancing priorities and meeting deadlines
Technical Ownership Expectations
Take ownership of assigned systems, features, or technical areas, including operational stability
Communicate clearly and proactively with the Lead Engineer and teammates, especially during incidents
Demonstrate sound judgment when responding to live production issues
Model strong engineering discipline, including testing, documentation, and thoughtful code changes
Provide constructive feedback during code reviews and technical discussions
Identify risks, technical debt, or improvement opportunities and surface them appropriately
Operate with professionalism and accountability in a live service environment
YOUR PROFILE
3-5 years of professional software development experience
Strong proficiency in C, C++, C#, or similar languages
Strong experience working in Linux-based environments
Solid understanding of client-server architectures and networked applications
Experience with version control systems (e.g., Git)
Strong organizational skills with the ability to manage multiple tasks and priorities
Self-starter with the ability to work independently and take ownership of assigned work
Strong problem-solving, debugging, and analytical skills
Effective written and verbal communication skills
Nice-to-have
Experience in the online gaming industry or other live service environments
Familiarity with ASP.NET and related web technologies
Working knowledge of SQL and relational databases
Experience with AWS or other cloud platforms
Exposure to DevOps practices, monitoring, logging, or deployment pipelines
Simutronics Corp. is one of the longest-runing independent game development studios in North America. As a leader in the business of massively multiplayer games, we have made persistent worlds that people continue to play today. We have branched out into creating mobile titles as well, with award-winning games that have topped the game charts and achieved praise from countless reviewers. We are based in St. Louis, Missouri.
Since 2016, Simutronics is joining forces with Stillfront Group, one of Europe's leading game publishers with a strong focus on long-term IP growth. They develop a wide range of digital games that attract over 50 million players each month. From well-established franchises like Supremacy, Big Farm, and BitLife to niche games, we span many different genres, including strategy, simulation, RPG and action, and casual and mash-up games.
$59k-79k yearly est. 5d ago
Software Engineer
CDIT
Principal software engineer job in Scott Air Force Base, IL
Develops, runs tests, and maintains current computer programs that provide instructions computers must follow to perform their functions. Updates, repairs, modifies, and expands existing computer programs. Supports a non -complex degree of structured analysis, impact and compatibility analysis, cost analysis, computer capability analysis, feasibility studies, and user/customer interface.
Requirements
Secret Clearance
Bachelors degree
Experience depending upon Job Level
Junior - 0 -3 years
Intermediate - 3 -8 years
Senior - 8 -11 years
Subject Matter Expert - 12+ years
How much does a principal software engineer earn in Saint Peters, MO?
The average principal software engineer in Saint Peters, MO earns between $80,000 and $138,000 annually. This compares to the national average principal software engineer range of $98,000 to $182,000.
Average principal software engineer salary in Saint Peters, MO
$105,000
What are the biggest employers of Principal Software Engineers in Saint Peters, MO?
The biggest employers of Principal Software Engineers in Saint Peters, MO are: