28 ml developer jobs at 20 companies in Wentzville, MO

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Staff Software Engineer
St. Louis or Burlington
$111k-$166k/yr HybridFull Time
Merck
MerckXETRA: MRK: A science and technology providing healthcare, life science, and electronics solutions.
3+ YOEBachelor's in CS/Engineering/Data Science, 3+ years in ML/data/search systems, strong Python, backend and data engineering experience, SQL, cloud (GCP/AWS), and production ML/LLM system design.
Python, REST API, Pandas, NumPy, MLFlow, TensorFlow, PyTorch, Scikit-learn, AWS Services, GCP, Kubernetes, Bedrock, Kafka, LangGraph, LangChain, AirFlow, Qdrant, Docker, Git, CI/CD, SQL
2mo
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AI Engineer
St. Louis or Atlanta
HybridFull Time
Equifax
EquifaxNew York Stock Exchange: EFX: Provides consumer credit reporting and data analytics services globally.
7+ YOE7+ years software engineering; strong AI/ML experience; LangChain/LangGraph; GCP; Kubernetes; Python/JavaScript/Java; DevSecOps/FinOps; CI/CD; SQL/NoSQL databases; cloud-native
LangChain, LangGraph, Google Cloud Platform, Kubernetes, Docker, Terraform, CloudFormation, GitHub Actions, Argo CD, Jenkins, SQL, PostgreSQL, MySQL, MongoDB, DynamoDB, Firestore, GitHub Copilot, Gemini, Claude, Llama, Langfuse, Vertex AI
2mo
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Senior Software Engineer
O'Fallon, Missouri, United States
$115k-$184k/yr OnsiteFull Time
Mastercard
MastercardNYSE: MA: Global payment processing and financial technology service provider.
Python for AI components; Java for scalable services; experience with AI/ML lifecycle, microservices, databases, and distributed systems.
Python, Java, PyTorch, TensorFlow, Hugging Face, Docker, Kubernetes, CI/CD
2w
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Machine Learning Engineer 727
St. Louis, Missouri, United States
OnsiteFull Time
Freedom Technology Solutions Group
Freedom Technology Solutions Group: Provides geospatial and software engineering solutions for national security agencies.
1+ YOEExperience designing, training, deploying, and optimizing ML models for production; familiarity with MLOps, AWS, and geospatial or computer vision workflows; active TS/SCI clearance required.
Python, PyTorch, TensorFlow, Scikit-learn, Hugging Face, MLflow, Docker, Podman, Kubernetes, EKS, ECS, Lambda, SageMaker, GitLab CI/CD, Linux, PostgreSQL, PostGIS, Aurora, Oracle, Redis, Elasticache, GDAL, Rasterio, OGR
3w
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Performance Engineer Intern, Systems Software- Fall 2026
St. Louis, Missouri, United States
$20-$71/hr OnsiteFull Time, Internship
NVIDIA
NVIDIANASDAQ: NVDA: Designs GPU-accelerated computing and artificial intelligence hardware.
Enrolled in a Bachelor's in CS/CE/SE or related; experience with Python and Linux; familiarity with ML lifecycle; teamwork and CS fundamentals; interest in performance benchmarking and containers.
Python, Linux, PyTorch, CUDA, cuOPT, CUTLASS, cuDNN, Kubernetes, Slurm
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Senior Data Engineer
Hazelwood, Missouri, United States
$143k-$193k/yr OnsiteFull Time
Boeing
BoeingNYSE: BA: Designs and manufactures aircraft, defense systems, and space technology.
9+ YOEBachelor's degree,9 years data science/AI/ML experience,active U.S. Secret clearance,U.S. person required,programming in Python/Julia/R/C/C++/C#/Java,experience leading teams and integrating ML models.
Python, Julia, R, C, C++, C#, Java, SQL, NoSQL, PyTorch, TensorFlow, ClearML, MLFlow, Azure, AWS
1mo
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Senior Data Solution Architect/Engineer
Gray Summit, Missouri, United States
$78k-$103k/yr HybridFull Time
Land O'Lakes
Land O'Lakes: A member-owned cooperative providing agricultural supplies and dairy products.
2+ YOEMaster's in Computer Science/Engineering/Data Science and 2+ years as a data scientist/engineer; experience with Python, R, SQL/Scala, Power platform, Azure, VB6, SSAS/SSIS/SSRS, and data pipeline/ML model development.
ETL tools, SQL Databases, Data Warehousing, Data Modeling, Python, R, SQL, Scala, Power BI, Power Automate, Power Apps, Power Pivot, Microsoft Fabric, VB6, Azure Functions, Data Lake, APIs, SSAS, SSIS, SSRS, T-SQL
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Senior Data Engineer
Hazelwood, Missouri, United States
$143k-$193k/yr OnsiteFull Time
Boeing
BoeingNYSE: BA: Designing and manufacturing commercial aircraft and defense systems.
9+ YOEBachelor's in engineering or related field,9 years data science/ML experience,active U.S. Secret clearance,programming in Python/Julia/R/C/C++/C#/Java,technical leadership,EML/DB and MLOps experience.
Python, Julia, R, C, C++, C#, Java, SQL, NoSQL, PyTorch, TensorFlow, ClearML, MLflow, Azure, AWS, LLMs
2mo
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Lead DevOps Engineer, Cloud Products and Patterns
St. Louis, Missouri, United States
OnsiteFull Time
London Stock Exchange Group
London Stock Exchange GroupLondon Stock Exchange: LSEG: Provides financial market infrastructure and global data analytics services.
Degree in Computer Science or equivalent; strong DevOps experience; Azure and AWS; ML deployment; CI/CD; Docker; programming languages; familiarity with GitHub/GitLab; Agile/Scrum.
Azure, AWS, CI/CD, Docker, GitHub, GitLab, Python, Java, JavaScript, C#, Secrets management, Code scanning tools
1mo
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Tech Product & Offering Dev Manager
New York City or Milwaukee or Dallas or Columbus or Kirkland or Cincinnati or Cleveland or Oklahoma City or Austin or Albany or Chicago or St. Petersburg or Hartford or Pittsburgh or St. Louis or Miami or Sacramento or Raleigh or Minneapolis or Mountain View or Scottsdale or San Francisco or Morristown or Denver or Boston or Philadelphia or Des Moines or Overland Park or Los Angeles or Charlotte or Walnut Creek or Carmel or Seattle or Houston or Arlington or Atlanta or Redmond or Bentonville or Beaverton or Nashville or Detroit or San Diego
$80k-$225k/yr HybridFull Time
Accenture
AccentureNYSE: ACN: Global provider of management consulting and technology services.
5+ YOE5+ years in AI/ML/automation or software engineering, 5+ years Python and APIs/automation frameworks experience, 2+ years deploying AI/ML to production, bachelor’s degree or equivalent, experience with cloud/distributed systems and GenAI preferred.
Python, APIs, automation frameworks, data pipelines, GenAI, LLMs
1mo
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Software Engineering Senior Advisor- Hybrid
St. Louis, Missouri, United States
HybridFull Time
The Cigna Group
The Cigna GroupNYSE: CI: Provides health insurance and pharmacy benefit management services.
4+ YOEBachelor's in CS or related and 4 years' experience; experience with ASP.NET MVC, ML.net, WCF, ADO.NET, SSRS, Tableau, SQL, C#, web technologies, OOP/OOD, Agile/Waterfall, and healthcare/PBM domain; domestic travel ~10%.
ASP.NET MVC, ML.net, WCF, Web Services, XML, ADO.NET, SSRS, Tableau, Object Oriented Programming and Design (OOP/OOD), Waterfall, SCRUM, Test-driven development (TDD), SQL, C#, HTML5, JavaScript, jQuery, Angular, CSS3, Bootstrap, Auto Mapper
1mo
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Senior Insider Risk & AI Security Analyst/ Engineer IV
Arizona or Tempe or Missouri or St. Louis or United States
HybridFull Time
Edward Jones
Edward Jones: Offers investment management and financial planning through local branches.
5+ YOE5+ years in information systems security/IT with security controls; experience monitoring AI/ML platforms and telemetry; familiarity with UEBA, DLP, SIEM/SOAR; ability to investigate alerts, perform digital forensics, and translate AI risks for stakeholders.
Gurucul, XSOAR, Microsoft Purview, Proofpoint, Zscaler, SIEM, SOAR, UEBA, DLP
1w
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Senior AI Research Scientist – Foundation Models & Agentic AI
Charlotte or San Francisco or West Des Moines or Irving or Tempe or Saint Louis or Minneapolis
$139k-$260k/yr HybridFull Time
Wells Fargo
Wells FargoNYSE: WFC: Provides banking, investment, mortgage, and consumer finance products.
4+ YOEMaster's degree in a quantitative field,4+ years quantitative analytics experience,publication record,expertise in foundation/agentic/Generative AI,experience with ML frameworks and cloud infrastructure.
GitHub Copilot, TensorFlow, PyTorch, Hugging Face, AWS, GCP, GPT-4, BERT, LLaMA, Claude
1mo
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Scientist, Bioinformatics
St. Louis or United States
$87k-$154k/yr OnsiteFull Time
Bruker
BrukerNASDAQ: BRKR: Develops and manufactures high-performance scientific and diagnostic instruments.
PhD in bioinformatics or related field, strong Python skills, experience with ML/deep learning applied to imaging or single-cell data, ability to design reusable analysis pipelines and communicate with wet-lab scientists.
Python, R, MATLAB, CellScapeTM
2mo
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Senior Research and Intelligence Specialist
Atlanta or Chicago or Dallas or Denver or Houston or Kansas City or Nashville or Philadelphia or Phoenix or Raleigh or Seattle or Los Angeles or St. Louis
$90k-$120k/yr HybridFull Time
Polsinelli
Polsinelli: Am Law 100 law firm providing comprehensive legal services.
5+ YOEMLS/MLIS/MIS or equivalent; 5+ years in law firm or professional services research; proficient in major legal/business research platforms; strong AI tool proficiency; excellent communication and analytical skills.
Westlaw, Lexis, Bloomberg Law, CapitalIQ, D&B, Public records databases, CoCounsel, OpenAI, Westlaw Edge
1mo
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Technology Support Officer (Regulatory Policy & Intel 3) - 29170
St. Louis or Springfield
$92k-$130k/yr OnsiteFull Time
HII
HIINYSE: HII: Builds naval ships and provides global defense technology solutions.
3+ YOEUS citizen able to obtain DoD security clearance and pass HSPD-12 background check; B.S. in Computer Science/Computer Engineering (or related); ~3+ years relevant experience; expertise in AI/ML, computer architecture, software engineering; strong writing and communication.
1w
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Assistant Professor - Genetics
St. Louis, Missouri, United States
OnsiteFull Time
Washington University in St. Louis
Washington University in St. Louis: A research university providing higher education and medical services.
Doctorate (Ph.D. or M.D.) in a quantitative field, expertise in AI/ML and biomedical data science, experience developing deep learning/LLM methods, Python programming, teaching, mentoring, and grant writing.
Python, large language models, deep learning frameworks
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AI Solutions Co-Op
St. Louis, Missouri, United States
OnsitePart Time
Luzco Technologies
Luzco Technologies: Boutique engineering firm specializing in power delivery and infrastructure.
Currently pursuing a Bachelor’s or Master’s in CS/AI/ML/Data Science/Engineering or related; junior standing preferred; interest/experience in AI, prompt engineering, or software development; strong communication and organization.
Microsoft Copilot, Microsoft Copilot Studio, Microsoft 365, Microsoft SharePoint, JavaScript, Python, APIs
1mo
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Maven Exploitation Specialist/ Data Analyst (Middle)
Springfield or St. Louis
$140k-$155k/yr OnsiteFull Time
BTS Software Solutions
BTS Software Solutions: Provides software engineering and technical solutions for defense missions.
TS/SCI clearance, data preparation and statistical analysis of large geospatial datasets, ETL and data curation, experience with Python/R/SQL/GIS/Tableau, visualization and analytics to support ML model development.
Python, R, SQL, GIS, Tableau
1mo
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Scientific Data Architect- Central US
Chicago or Indianapolis or St. Louis
HybridFull Time
TetraScience
TetraScience: Cloud platform for automating and harmonizing scientific research data.
PhD +4 years or Masters +8 years in life sciences, strong experience productizing AI/ML in cloud, designing extensible data models, Python development, ELN/LIMS integration, customer-facing consulting and regional travel.
Python, Streamlit, holoviews, Plotly, ELN, LIMS, Tetra Data Platform, Tetra OS, AWS, Databricks, Snowflake, NVIDIA, Google, Microsoft

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