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25 junior ai engineer jobs at 14 companies in Saint Charles, MO

2w
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Data & AI Platform Engineer
San Ramon or Salt Lake City or Philadelphia or Chicago or Pasadena or Bellevue or Irvine or Duluth or Los Angeles or Boca Raton or Brunswick or Atlanta or Boise or El Segundo or Denver or Dallas or New York City or Los Angeles or Garden City or Nashville or St. Louis or Woodland Hills or San Jose or San Francisco or Austin
$105k-$143k/yr OnsiteFull Time
Armanino
Armanino: Provides accounting, tax, and consulting services to diverse organizations.
2+ YOERequires 2+ years in data, platform, analytics engineering, or cloud operations; 1+ year accounting experience; cloud data, BI, CI/CD, scripting, SQL, governance, and AI/ML familiarity.
Microsoft Fabric, Snowflake, Databricks, Power BI, Tableau, Git, Python, PowerShell, SQL, Azure Key Vault, Azure OpenAI, AI Search
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3mo
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AI-Application Security Engineer
Saint Louis, Missouri, United States
OnsiteFull Time
Stifel
StifelNYSE: SF: Provides wealth management and investment banking services to clients.
2+ YOEBachelor's degree,2+ years information security or software development experience,knowledge of application and AI security,experience with SAST/DAST/SCA/API security,AWS,Python,C#,GitHub;CISSP/CSSLP/GIAC preferred.
C#, Angular, Python, AWS, GitHub, SAST, DAST, SCA, API, Mobile, AI Coding assistants, MCPs, CI/CD
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1mo
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Firmware Engineer Intern
St. Louis, Missouri, United States
OnsiteInternship
Safe Fleet
Safe Fleet: Integrated smart safety solutions for fleet vehicles.
Pursuing BS in Computer Engineering/EE/CS, C programming, experience with CoPilot/Claude/ChatGPT, oscilloscope and DMM use, debugging, version control and static analysis, ability to validate AI-assisted firmware outputs.
CoPilot, Claude, ChatGPT, Oscilloscope, DMM, C, version control systems, defect tracking systems, static source code analysis
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1mo
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Software Engineer 1 (Backend UI and AI)
Earth City, Missouri, United States
$86k-$102k/yr HybridFull Time
U.S. Bank
U.S. BankNYSE: USB: Provider of personal, business, and institutional financial services.
2+ YOE2–3 years experience, bachelor’s degree or equivalent, proficiency with ReactJS/Next.js/JavaScript/Node.js, frontend state management, CI/CD and DevOps practices, strong communication and problem-solving skills.
ReactJS, Next.js, JavaScript, Node.js, GraphQL, Apollo Client, Axios, Redux, Context API, HTML5, CSS3, SCSS, Styled Components, Webpack, Babel, NPM, JWT, Jenkins, CloudBees, Git, Azure DevOps/TFS, WCAG/ADA Compliance Tools
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1w
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Electrical Engineering New Graduate
St. Louis, Missouri, United States
OnsiteFull Time
IMEG
IMEG: Provides engineering design and consulting for buildings and infrastructure.
Bachelor of Science in Electrical Engineering required. EIT preferred, with knowledge of electrical systems design, engineering software, BIM, MS Office, communication, teamwork, and problem-solving skills.
AGI, Elum Tools, Visual Lighting, ComCheck, Adobe, Bluebeam Revu, Building Information Modeling (BIM), Microsoft Office, Microsoft Word, Microsoft Excel, Microsoft Outlook, MEG, VR, AI
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2mo
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Software Engineer - Intermediate
St. Louis, Missouri, United States
HybridFull Time
Equifax
EquifaxNYSE: EFX: Global provider of credit reporting and data analytics solutions.
2+ YOEBachelor's degree or equivalent experience; 2+ years with Java, Python, JavaScript, build tools, web development, testing, and cloud technology. AI-assisted development experience required.
Java, Python, JavaScript, Maven, Gradle, HTML, CSS, GCP, AWS, Azure, Git, GitHub, JUnit, Jenkins, Spring Boot, GitHub Copilot, Data Fabric, CSA Toolset, Atlassian
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1mo
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Software Engineer I
Fenton, Missouri, United States
HybridFull Time
Maritz
Maritz: Provides business incentive, event, and loyalty management solutions.
1+ YOE1-2 years relevant experience or equivalent practical experience; knowledge of web frameworks, OOP, REST services, databases, basic cloud (AWS/GCP/OCI), secure coding, and AI-assisted development tools.
GitHub Copilot, Claude, AWS, GCP, OCI, REST
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2mo
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Software Engineer - Intermediate
St. Louis, Missouri, United States
HybridFull Time
Equifax
EquifaxNew York Stock Exchange: EFX: Provides consumer credit reporting and data analytics services globally.
2+ YOEBachelor's degree or equivalent, 2+ years software development experience with Java, Python, and JavaScript; experience with cloud (GCP/AWS/Azure), build tools (Maven/Gradle), frontend (HTML/CSS), CI/CD, and AI-assisted coding tools (e.g., GitHub Copilot).
GitHub Copilot, Java, Python, JavaScript, Maven, Gradle, HTML, CSS, JUnit, Git, GitHub, Jenkins, Atlassian, Java 17, Spring Boot, GCP, AWS, Azure, CI/CD, Microservices, Data Fabric, CSA Toolset
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1w
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Associate Embedded Software Engineer
Hazelwood or Berkeley or Saint Louis
$99k-$135k/yr OnsiteFull Time
Boeing
BoeingNYSE: BA: Designs and manufactures commercial airplanes, defense systems, and space technology.
2+ YOEBachelor's degree and 2+ years developing software or embedded systems. Experience with C/C++, Agile development, and ability to obtain U.S. Secret clearance and meet U.S. Person export requirements.
C, C++, Linux, Docker, Kubernetes, JIRA, Git, MSOSA, Cameo, GitLab, Ansible, Artifactory, UML, SysML, CI/CD, AI
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1w
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Cloud Operations and Customer Support Engineer, Jr.
Springfield or St. Louis
$108k-$128k/yr OnsiteFull Time
General Dynamics Information TechnologyNYSE: GD: Provides mission-critical IT services to government and defense organizations.
2+ YOERequires TS/SCI clearance, U.S. citizenship, 2+ years of IT experience, AWS and Linux knowledge, cloud infrastructure management, troubleshooting, customer support, and a bachelor's degree or equivalent experience.
AWS, Linux, RedHat, CentOS, DevOps, Agile, Scrum, GitLab CI, Nexus, Artificial Intelligence (AI), cloud
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5d
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Machine Vision Co-Op
Bridgeton, Missouri, United States
OnsiteInternship
Hunter Engineering
Hunter Engineering: Designs and manufactures automotive service and inspection equipment.
Student majoring in electrical, computer engineering, or computer science with a minimum 3.0 GPA and experience in software, firmware, electronics, AI, data science, or testing.
C++, C#, Python, USB, Ethernet, Wi-Fi, GMSL, Linux
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1d
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Engineering Internship, Summer 2027
Boston or Auburn or Andover or Alexandria or Oxnard or Mehoopany or Albany or Mason or Greensburg or Green Bay or Cape Girardeau or Dover or Cincinnati or St. Louis or Sacramento or Phoenix or North Chicago or Lima or Iowa City or Greensboro or Kansas City or Ivorydale or St. Louis or Boston
$85k-$122k/yr OnsiteInternship, Full Time
Procter & Gamble
Procter & GambleNYSE: PG: Manufactures and sells diverse consumer packaged goods globally.
Currently enrolled in an engineering bachelor's program, graduating Winter 2027–Spring 2029. Requires analytical, problem-solving, communication, collaboration, adaptability, and basic control, sensor, motor, and PLC knowledge.
Industry 4.0, Artificial Intelligence (AI), Machine Learning (ML), PLC, Rockwell PLCs, Python, R, LabVIEW, 3D CAD/CAE
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3mo
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Strategic Talent Pipeline - Upcoming NGA Initiatives
St Louis or Arnold
$80k-$128k/yr OnsiteFull Time
Peraton
Peraton: National security and mission-critical government technology services provider.
0+ YOEBachelor’s degree in engineering, math, physics, or related field; 0-6+ years experience; ability to obtain TS/SCI with poly; willing to work at a customer facility; strong analytical, communication, and teamwork skills.
AI/ML, Cloud Computing, Cyber Security, Modeling and Simulation, Network Engineering, IT Infrastructure Architecture, Change/Configuration Management, Hyperspectral Imaging
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2mo
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Intern - AI/ML Data Engineering - Onsite - St. Louis
Saint Louis, Missouri, United States
OnsitePart Time, Internship
Core & Main
Core & MainNYSE: CNM: Distributes products for water, wastewater, and fire protection infrastructure.
Currently pursuing a Bachelor's or Master's in CS, Data Science, Engineering, Math or related; basic programming (Python preferred); foundational statistics/ML and data analysis knowledge; exposure to SQL, Python libraries, cloud platforms, and Git; ≤2 years professional experience preferred.
Python, Pandas, NumPy, scikit-learn, PySpark, SQL, Microsoft Azure, Copilot Agents, Microsoft Power BI, Tableau, Git
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1w
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Lead Information Technology Specialist (APPSW)
Fresno or Washington or Jacksonville or Chamblee or Chamblee or Fairview Heights or Covington or Lanham or Detroit or Kansas City or Saint Louis or Charlotte or Holtsville or Philadelphia or Guaynabo or San Juan or Memphis or Austin or Austin or Farmers Branch or Ogden or Kearneysville
$126k-$193k/yr OnsiteFull Time
IRS Office of Chief Counsel
IRS Office of Chief Counsel: Represents the IRS in tax litigation and legal matters.
1+ YOEOne year of GS-13-equivalent specialized IT experience leading projects, applying advanced software engineering and cybersecurity practices, evaluating solutions, and providing technical leadership.
Artificial Intelligence (AI), Agile, DevOps, CI/CD, Software Development Life Cycle (SDLC)
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1d
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Supply Future Leaders
Toronto or London or Halifax or Edmonton or Calgary or Winnipeg or Vancouver or St. John's or Saskatoon or Regina or St. Louis
OnsiteFull Time
Labatt Breweries of Canada
Labatt Breweries of Canada: Brews and distributes beer and alcoholic beverages in Canada.
Recent or anticipated graduate in engineering, science, or environmental/safety; eligible to work in Canada and relocate. No formal experience required; flexibility for rotating shifts, weekends, holidays, and overtime.
AI
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2d
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Postdoctoral Research Associate - Engineering
St. Louis or United States
OnsiteFull Time
Washington University in St. Louis
Washington University in St. Louis: Providing higher education and conducting advanced academic research.
Ph.D., M.D., or equivalent terminal doctoral degree required. Strong chemistry background and wet-lab experience required; expertise in electrochemistry, machine learning, AI agents, and computational workflows is sought.
Python, large language models, machine learning, retrieval-augmented generation
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