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124 ai engineer jobs at 58 companies in O'Fallon, MO

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Sr. Applied AI Engineer (Claude/Codex)
Mountain View or St. Louis or Philadelphia or Houston or Bentonville or Columbus or Overland Park or Scottsdale or Cleveland or Detroit or Morristown or Raleigh or Des Moines or Oklahoma City or Miami or Minneapolis or Chicago or San Francisco or Cincinnati or New York or Dallas or San Diego or Denver or Albany or Hartford or Sacramento or Arlington or Redmond or Los Angeles or Pittsburgh or St. Petersburg or Milwaukee or Beaverton or Carmel or Walnut Creek or Seattle or Boston or Charlotte or Kirkland or Atlanta or Austin or Nashville
$80k-$294k/yr HybridFull Time
Accenture
AccentureNYSE: ACN: Global provider of management consulting and technology services.
5+ YOE3+ MgmtRequires 5+ years in engineering and technical customer-facing roles, 3+ years in AI engineering and team management, 1+ year building Claude/Codex AI systems, and a bachelor's degree or equivalent.
Claude, Codex, Antigravity, Gemini, Python, Java, C, Go, Model Context Protocol (MCP), CI/CD, Electronic Medical Records (EMR)
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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
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2mo
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Lead AI Engineer
O'Fallon, Missouri, United States
$140k-$231k/yr OnsiteFull Time
Mastercard
MastercardNYSE: MA: Global payment processing and financial technology service provider.
Lead AI Engineer with production AI/ML experience, strong Python, REST APIs, CI/CD, and cloud platforms (AWS, Databricks, Azure); leadership and mentoring.
Power Platform, Copilot Studio, AWS, Databricks, Python, RESTful APIs
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2mo
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AI-Application Security Engineer
Saint Louis, Missouri, United States
OnsiteFull Time
Stifel Financial
Stifel FinancialNYSE: SF: Financial services firm providing wealth management and investment banking.
2+ YOEExperience building and securing AI-enabled applications; hands-on in app security, AI security risks, vulnerability management, and secure-by-design practices.
C#, Angular, Python, AWS, GitHub, SAST, DAST, SCA, API Security, Mobile Security, Red Team, AI Tools
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2mo
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Agentic AI Developer
O'Fallon, Illinois, United States
$99k-$225k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
3+ YOE3+ years software development experience, proficiency with Python, experience with large language models, embeddings, vector databases, AI agents, and ability to obtain a Secret security clearance; bachelor’s degree required.
Python, Retrieval-Augmented Generation (RAG)
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1mo
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AI Engineer
St. Petersburg or Detroit or St. Louis or Richmond or Raleigh or Dallas or Indianapolis or Minneapolis
RemoteFull Time
Kobie
Kobie: Designs and manages customer loyalty programs for global brands.
3+ YOE3+ years professional Python, 1+ year LLMs in production, experience with LangChain/LangGraph or similar, observability tools (CloudWatch, LangSmith, Langfuse, MLflow, OpenTelemetry), Git and Docker, SQL and Snowflake experience preferred.
Python, LangChain, LangGraph, Pydantic, JSON Schema, Amazon AgentCore, AgentCore Runtime, AgentCore Evaluations, AgentCore Strands, CrewAI, Semantic Kernel, Amazon Bedrock, Snowflake, Snowpark, Snowflake Cortex, SQL, Amazon CloudWatch, LangSmith, Langfuse, MLflow, OpenTelemetry, Git, Docker, awscli
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2w
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Java AI Engineer
O'Fallon, Missouri, United States
$90k-$110k/yr OnsiteFull Time
Tata Consultancy Services
Tata Consultancy ServicesNational Stock Exchange of India: TCS: Global provider of IT services, consulting, and business solutions.
5+ YOE5+ years Java development with Spring Boot, Agentic AI experience, SQL with Oracle/PostgreSQL, REST API, event-driven architecture, CI/CD and Jenkins; Kafka and PCF exposure preferred.
Java, Spring Boot, Agentic AI, SQL, Oracle, PostgreSQL, REST, Event-Driven Architecture, CI/CD, Jenkins, Kafka, Pivotal Cloud Foundry
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2w
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Director - Software/ AI Native Engineer
St. Louis, Missouri, United States
$175k-$180k/yr OnsiteFull Time
Tech Mahindra
Tech MahindraNational Stock Exchange of India: TECHM: Global provider of information technology and business process services.
8+ YOEBachelor's degree required, 8+ years experience building cloud-native, microservices, DevOps/platform engineering with AWS; experience with AI-assisted development, LLM/agent integrations, and AI governance.
GitHub Copilot, Claude Code CLI, Model Context Protocol (MCP), AI Foundry, Bedrock, OpenAI, Anthropic, AWS
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2mo
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Forward Deployment AI Engineer
Denver or St. Louis or Indianapolis
$120k-$150k/yr FieldFull Time
Lyra Technology Group
Lyra Technology Group: Operates a global portfolio of managed IT service providers.
2+ YOEBachelor's degree,2+ years software/AI engineering or technical consulting,proficiency in Python and REST APIs,experience with LLM APIs (OpenAI, Anthropic, Gemini),knowledge of RAG and agent patterns,strong communication.
Python, REST APIs, LangChain, LangGraph, AutoGen, OpenAI, Anthropic, Gemini, Zapier, Make, n8n, Pinecone, Weaviate, Chroma
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2w
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Forward Deployment AI Engineer
St. Louis, Missouri, United States
$120k-$150k/yr FieldFull Time
GadellNet
GadellNet: Providing managed IT services and technology solutions for businesses.
2+ YOEBachelor's in CS/Engineering/Info Systems, 2+ years software/AI/consulting experience, Python and REST API proficiency, experience with LLM APIs (OpenAI, Anthropic, Gemini), RAG and agent patterns, client-facing communication skills.
Python, REST APIs, OpenAI, Anthropic, Gemini, LangChain, LangGraph, AutoGen, Zapier, Make, n8n, Pinecone, Weaviate, Chroma
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3w
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AI Engineering Lead
Columbia, Illinois, United States
HybridFull Time
Automotive Product Consultants
Automotive Product Consultants: Provides sales, finance, and insurance services to automotive dealerships.
Proven experience integrating LLMs into production, prompt engineering, RAG, Python or .NET (C#), vector DBs, cloud AI services, and leading cross-functional AI programs.
Anthropic Claude, OpenAI, Claude Code, GitHub Copilot, Python, .NET (C#), Pinecone, pgvector, AWS Bedrock, Amazon SageMaker, Twilio, Amazon Connect, IVR
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3mo
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NGA AI Engineer Manager
Tampa or Raleigh or Charlotte or Chicago or Cincinnati or Cleveland or Columbia or Columbus or Dallas or Baltimore or Richmond or Rochester or Rosemont or Sacramento or Boston or St. Louis or Salt Lake City or San Antonio or San Diego or San Francisco or Silicon Valley or Seattle or Spartanburg or Albany or Miami or New York or Oklahoma City or Philadelphia or Phoenix or Pittsburgh or Portland
$74k-$212k/yr OnsiteFull Time
PwC
PwC: Providing audit, tax, and management consulting services to businesses.
4+ YOELead data and analytics engineering projects; 4+ years experience; master's degree preferred; strong leadership and client management.
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1mo
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AI Red Team Lead Engineer
Minneapolis or Atlanta or Cincinnati or New York City or Chicago or Gresham or Charlotte or Irving or Earth City
$133k-$157k/yr HybridFull Time
U.S. Bank
U.S. BankNYSE: USB: Provider of personal, business, and institutional financial services.
8+ YOE8+ years experience in information security or red teaming; bachelor’s degree or equivalent; experience testing/securing AI/ML systems preferred; strong communication, leadership, and analytical skills.
Python, PowerShell, Go, C/C++, Shell, EDR/XDR
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1mo
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Agentic AI Architect - Intelligence Engineering (Central)
Austin or Chicago or Columbus or Dallas or Detroit or Houston or Indianapolis or Kansas City or Minneapolis or Nashville or St. Louis
$108k-$200k/yr HybridFull Time
Slalom
Slalom: Provides business and technology consulting and software engineering services.
5+ YOE5+ years software engineering experience with 2+ years focused on generative/agentic AI; experience designing multi-agent systems, RAG, cloud AI platforms, Python, API frameworks, evaluation/observability, and leading small teams.
Amazon Web Services, Azure, Google Cloud, AWS Bedrock, Azure AI Foundry, OpenAI Service, GCP Vertex AI, Gemini, Databricks, Python, FastAPI, Flask, Lang Graph, Strands Agents SDK, OpenAI Agents SDK, Google ADK, LangSmith, RAGAS, DeepEval, Claude Code, Cursor, Kiro, AutoGen, CrewAI, Semantic Kernel, Model Context Protocol (MCP)
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1mo
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Senior Civil Engineer SME - AI Data Centers
Greenville or Omaha or New York City or Chicago or Portland or Austin or Washington or San Francisco or Boston or Houston or Atlanta or Philadelphia or Moon Township or Miami or Birmingham or Arlington or Nashville or Appleton or St Paul or Saint Louis or Little Rock or Columbus or Indianapolis or Kansas City or Lawrence or Iowa City or Boise or Chandler or Albuquerque or Los Angeles or Sacramento or Pensacola
$170k-$233k/yr HybridFull Time
Jacobs
JacobsNYSE: J: Global provider of professional engineering and technical services.
15+ YOEActive PE license, 15+ years civil engineering experience with 8+ years leading large-site/site-civil design, expert AutoCAD Civil 3D, stormwater and permitting expertise, Bachelor's in Civil Engineering required.
AutoCAD Civil 3D, Navisworks, Bluebeam Revu
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2mo
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Agentic AI Developer
O'Fallon, Illinois, United States
$99k-$225k/yr HybridFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients
3+ YOE3+ years software development experience, Python, software design patterns, LLM application development, embeddings/vector DBs/semantic search, agent planning and AI safety knowledge, ability to obtain Secret clearance, Bachelor's degree.
Python, large language models, vector databases, Retrieval-Augmented Generation (RAG)
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2mo
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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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AI Solutions Architect - Central Region
Chicago or Detroit or Minneapolis or St. Louis or Kansas City or Omaha or Columbus or Tulsa or Nashville or Austin
$185k-$235k/yr FieldFull Time
World Wide Technology
World Wide Technology: Global technology solutions provider and systems integrator.
10+ YOE10+ years in technical pre-sales/solutions architecture; hands-on AI/ML infrastructure design across GPU, storage, networking and MLOps; NVIDIA and cloud platform experience; bachelor's degree required; strong presentation and whiteboarding skills.
NVIDIA DGX, NVIDIA HGX, CUDA, AI Enterprise, NeMo, Omniverse, Advanced Technology Center (ATC), AWS, Azure, GCP, Dell, HPE, Cisco, NetApp, Pure Storage, Vast Data, MLOps
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1mo
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Test Engineer
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.
4+ YOEActive security clearance required; 4+ years test engineering experience; knowledge of DevSecOps, Agile/SAFe, AI model use, geospatial systems, vendor coordination, and delivering complex technology assignments.
Linux, Java, JavaScript, Python, Docker, OpenShift, Kubernetes, AWS Services, GitLab, Apache Spark, Glue, Parquet, JSON, XML, Argo Workflows, Boundless Spatial, Remote View, PostGRES/PostGIS, Oracle Spatial, ArcGIS Desktop, ArcGIS Server, Image Server, File Geodatabases, KML, KMZ, NITF, TIFF, JPEG, GeoPDF, PHP, C, C++, C#, Perl
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3w
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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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