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17 fastapi developer jobs at 14 companies in Missouri

1mo
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BI & Data Engineer
St. Louis, Missouri, United States
$110k-$130k/yr HybridFull Time
Focus Financial Partners
Focus Financial Partners: Private fiduciary financial-services holding operating wealth, family-office, business-management, and advisor-solution firms for clients and advisors.
4+ YOEAdvanced Power BI and Snowflake skills, report and platform administration, Streamlit/React/FastAPI app development, Python and SQL, Git/GitHub and CI/CD, 4+ years BI/data engineering experience, bachelor's or equivalent.
Snowflake, Microsoft Power BI, Streamlit, React, FastAPI, GitHub Copilot, Git, GitHub, GitHub Actions, Snowpark Container Services, Docker, Cortex Analyst, SQL, Python, JavaScript, TypeScript, DAX, DirectQuery
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6d
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Staff Software Engineer: Growth Engineering
United States or Hawaii or California or New York City or Seattle or Washington or Texas or Connecticut or Illinois or Massachusetts or New Hampshire or New Jersey or Oregon or Rhode Island or Vermont or Alabama or Alaska or Arizona or Arkansas or Colorado or Delaware or Florida or Georgia or Idaho or Indiana or Iowa or Kansas or Kentucky or Louisiana or Maine or Maryland or Michigan or Minnesota or Mississippi or Missouri or Montana or Nebraska or Nevada or New Mexico or North Carolina or North Dakota or Ohio or Oklahoma or Pennsylvania or South Carolina or South Dakota or Tennessee or Utah or Virginia or West Virginia or Wisconsin or Wyoming
$137k-$203k/yr RemoteFull Time
ModernHEALTH
ModernHEALTH: Private workforce mental health platform providing employers’ employees and families with coaching, therapy, group support, and digital care.
8+ YOERequires 8+ years of software development experience, 2+ years of full-stack web development, and expertise with Python, JavaScript/TypeScript, React, React Native, APIs, databases, technical leadership, and mentoring.
Python, Django, Flask, FastAPI, aiohttp, GraphQL, REST, React, React Native, TypeScript, Redux, Vite, PostgreSQL, Redis, Docker, Amazon Web Services (AWS), ECS, RDS, CloudFront, SQL, bash, SSO SAML, OIDC, JWT, AI, LLM
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1w
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Senior Full-Stack Developer - AI
Farmers Branch or Idaho or Arkansas or Texas or Georgia or Montana or Iowa or Wisconsin or Oregon or Washington or New York or District of Columbia or Connecticut or Nebraska or Rhode Island or Tennessee or Kentucky or Ohio or West Virginia or Maryland or Massachusetts or South Carolina or Missouri or Utah or Arizona or South Dakota or Pennsylvania or New Hampshire or Vermont or Minnesota or New Mexico or Michigan or California or Maine or North Dakota or Kansas or Indiana or New Jersey or Nevada or Louisiana or Mississippi or Oklahoma or Alabama or Virginia or Scottsdale or Illinois or North Carolina or Colorado or Florida or Wyoming or Delaware
$83k-$222k/yr HybridFull Time
CVS Health
CVS HealthNYSE: CVS: Diversified healthcare integrating retail, pharmacy, and insurance services.
7+ YOERequires 7+ years software development, 5+ years scalable microservices and REST APIs, 3+ years Python and messaging systems, 2+ years technical leadership, cloud, CI/CD, Git, containers, and orchestration experience.
Java, Spring Boot, React, REST APIs, JPA, Python, FastAPI, Flask, Kafka, RabbitMQ, ActiveMQ, AWS SQS/SNS, LangGraph, LangChain, GCP, GKE, Cloud Run, Cloud Build, IAM, Jenkins, GitHub Actions, Argo, GitHub, GitLab, Docker, Kubernetes, MongoDB Atlas, Claude, OpenAI, Gemini, Vertex AI
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1mo
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Software Engineer 2 (Backend AI)
Earth City or Atlanta or Hopkins or Denver or Cincinnati or Brookfield or Irving
$98k-$116k/yr HybridFull Time
U.S. Bank
U.S. BankNew York Stock Exchange: USB: Diversified financial services and banking institution.
3+ YOE3+ years software engineering experience, BS or equivalent, experience with full-stack development, cloud-native and DevOps practices, AI/GenAI familiarity preferred, strong communication and problem-solving skills.
Java, Python, Spring Boot, FastAPI, Node.js, REST APIs, GraphQL, Microservices, Azure, AWS, Azure OpenAI, AWS Bedrock, LLM APIs, LangChain, LangGraph, Semantic Kernel, Docker, Kubernetes, CI/CD Pipelines, GitHub, GitHub Copilot, SQL Server, PostgreSQL, MongoDB, Vector Databases, Embedding Models, RAG
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2w
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Junior Software Developer
St. Louis or Illinois or United States or Europe or South America or Asia
$60k-$65k/yr OnsiteFull Time
Interco
Interco: Private American metals trading and electronics recycler serving industrial, dealer, government, and commercial customers.
Bachelor's degree in computer science, software engineering, or related field; JavaScript, React.js, HTML, CSS, RESTful APIs, PostgreSQL, Git, and Figma experience required.
JavaScript, React.js, HTML, CSS, RESTful APIs, PostgreSQL, CI/CD, FastAPI, Git, Figma, Angular, Vue.js, HTML5, CSS3
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1d
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Senior AI Engineer
United States or Alabama or Arizona or California or Colorado or Connecticut or District of Columbia or Florida or Georgia or Idaho or Illinois or Indiana or Iowa or Maryland or Massachusetts or Michigan or Minnesota or Mississippi or Missouri or Nebraska or Nevada or New Jersey or New York or North Carolina or Ohio or Oregon or Pennsylvania or South Carolina or Tennessee or Texas or Utah or Virginia or Washington or West Virginia
RemoteFull Time
Incredible Health
Incredible Health: AI-powered healthcare career marketplace connecting nurses and clinicians with permanent roles at hospitals and health systems.
6+ YOE6+ years of software engineering experience, including 2+ recent years delivering ML- and LLM-powered features to production. Requires strong Python, ML evaluation, LLM, SQL, and full-stack engineering skills.
Anthropic, Claude, ElevenLabs, Python, FastAPI, Celery, Rails, React, ElasticSearch, Snowflake, dbt, Hex, Claude Code, SQL
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1d
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Sr Software Engineer - AI Platform
Omaha or Florida or Iowa or Kansas or Minnesota or Missouri or Nebraska or North Dakota or Texas
HybridFull Time
Blue Cross and Blue Shield of Nebraska
Blue Cross and Blue Shield of Nebraska: Nonprofit Nebraska health insurer providing health, vision, dental, and travel coverage to groups, individuals, and families.
4+ YOEBachelor's degree and 4–7 years of software engineering experience, including 2–3 years operating production ML/LLM systems, Python, evaluation frameworks, observability, ML pipelines, cloud AI infrastructure, and regulated-industry experience.
Python, FastAPI, LangSmith, Azure App Insights, Azure Monitor, Azure OpenAI, Azure Container Apps, Azure AI Search, PostgreSQL, Redis, Delta Lake, GitHub Actions, Prometheus, Grafana, Single Sign On (SSO)
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3w
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Software Engineer 2 (AI/GenAI)
Earth City or Denver or Hopkins or Cincinnati or Irving or Brookfield
$98k-$116k/yr HybridFull Time
U.S. Bank
U.S. BankNew York Stock Exchange: USB: Diversified financial services and banking institution.
3+ YOEBachelor's degree or equivalent experience; 3–5 years of relevant experience. Requires AI/GenAI, LLM, RAG, cloud, full-stack, distributed systems, and DevOps expertise.
Large Language Models (LLMs), Retrieval-Augmented Generation (RAG), LangChain, LangGraph, Semantic Kernel, Azure OpenAI, Azure AI Services, AWS Bedrock, REST APIs, GraphQL, Java, Python, Spring Boot, FastAPI, Node.js, vector databases, SQL Server, PostgreSQL, MongoDB, Docker, Kubernetes, CI/CD, GitHub, GitHub Copilot, Azure, AWS
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2w
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Software Engineer (Full-Stack Web)
Colorado or Florida or Iowa or Illinois or Kansas or Missouri or Nebraska or Ohio or Tennessee
$100k-$140k/yr RemoteFull Time
Computer Information Concepts
Computer Information Concepts: Private software and services provider serving county, city, and school governments with finance, education, and management systems.
3+ YOERequires 3+ years building production web applications, strong React and TypeScript experience, backend web framework experience, REST APIs, relational databases, ORM, testing, accessibility, Git workflows, and agile collaboration.
React, TypeScript, C#, .NET, Java, Spring, Python, FastAPI, Flask, Node.js, REST APIs, SQL Server, ASP.NET Core, EF Core, Azure, GitHub, Linear, Jira, Storybook, Chromatic, Claude Code, Codex, Git
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3w
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Principal Software Engineer - Python
Kansas City or San Francisco
$150k-$300k/yr RemoteFull Time
Veeva Systems
Veeva SystemsNYSE: VEEV: Provider of industry cloud solutions for the life sciences industry.
12+ YOE12+ years software development experience, production Python required, enterprise SaaS and scalability expertise, experience mentoring engineers, strong communication, unrestricted US work authorization.
Python, Git, FastAPI, Pydantic
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1w
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Sr. Automation Engineer Robotics Software
Ankeny or St. Louis or Creve Coeur
$115k-$144k/yr HybridFull Time
Bayer CropScience Aktiengesellschaft
Bayer CropScience Aktiengesellschaft: German agricultural supplying farmers with seeds, crop-protection products, biotechnology traits, and digital farming tools.
3+ YOEMaster's degree in a quantitative field and 3 years of experience developing robotics software, PLC integrations, Python applications, HMI systems, and automation monitoring.
PLC, OPC UA, Modbus, Python, JavaScript, Vue, FastAPI, HMI
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2w
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Senior AI Software Engineer-TS/SCI clearances (CI poly preferred)
Herndon or Denver or St. Louis
$155k-$200k/yr OnsiteFull Time
Credence Management Solutions
Credence Management Solutions: AI-native federal services.
7+ YOETS/SCI clearance required; bachelor's or master's in computer science, AI/ML, or related field; 7+ years software engineering experience; production AI/ML, generative AI, LLM, TypeScript, and Python experience.
Agent2Agent Protocol, Bedrock Agents, Mastra, CrewAI, Strands, AgentCore, LangChain, LangGraph, OpenAI, Anthropic, Gemini, Amazon Bedrock, Google Vertex AI, TypeScript, Nx, Next.js, Vercel AI SDK, Playwright, Jest, Vite, Python, uv, Pydantic, FastAPI, Unstructured, GitLab CI, VS Code, Cline, Claude Code, Terraform, Open Tofu, AWS CDK, CloudFormation, Infrastructure as Code (IaC), CI/CD
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4d
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Responsible AI Engineer
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
$68k-$220k/yr HybridFull Time
Accenture
AccentureNYSE: ACN: Global professional services delivering 360° value.
3+ YOEBachelor's degree or equivalent experience, 3+ years developing AI and machine learning solutions, 3+ years with programming, frameworks, APIs, version control, databases, and cloud platforms; responsible AI experience preferred.
Python, R, Java, Scikit-learn, TensorFlow, PyTorch, Django, Flask, FastAPI, GitHub, Bitbucket, AWS, Azure, Google Cloud, Hadoop, Spark
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3w
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Senior Advanced AI Research Engineer
Mountain View or Milwaukee or Dallas or Columbus or Kirkland or Cincinnati or New York City 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 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
OnsiteFull Time
Accenture
AccentureNYSE: ACN: Global professional services delivering 360° value.
5+ YOEBachelor's degree or equivalent experience, 5+ years with Python and/or Node.js/TypeScript, and 5+ years with AI/ML systems. Research-to-production experience preferred; Kubernetes, databases, tracing, and async Python are bonuses.
Python, Node.js, TypeScript, FastAPI, asyncio, Kubernetes, OpenTelemetry, CI
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1w
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Sr. Automation Engineer Robotics Software
Ankeny or St. Louis or United States
$115k-$144k/yr HybridFull Time
Bayer
BayerFrankfurt Stock Exchange: BAYN: Global life science focused on health and nutrition.
3+ YOEMaster's degree in informatics, computer engineering, robotics engineering, or a related quantitative field plus 3 years developing robotics automation software, PLC integrations, Python applications, HMI systems, and machine-learning solutions.
PLC, OPC UA, Modbus, Python, JavaScript, Vue, FastAPI
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1mo
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Principal AI Engineer
St. Petersburg or Alabama or Arizona or Florida or Georgia or Hawaii or Idaho or Louisiana or Maine or Maryland or Missouri or Montana or New Hampshire or New Jersey or New Mexico or New York or North Carolina or Oklahoma or Oregon or Texas or Utah or Virginia or West Virginia or Wisconsin
$180k-$200k/yr HybridFull Time
The HOTH
The HOTH: Digital marketing providing SEO, content marketing, and link-building services to businesses and agencies.
10+ YOE10+ years building production software and production AI applications; strong Python and AWS experience; ability to work across frontend, backend, cloud, and AI systems; debugging and architecture skills.
React, Next.js, TypeScript, Tailwind CSS, Python, Django, FastAPI, PostgreSQL, Redis, OpenAI, Anthropic, Gemini, RAG, vector databases, embeddings, AWS, ECS/Fargate, S3, Lambda, Terraform, Docker, Cloudflare, CI/CD
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22h
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GenAI-Team Lead III - AI -GR-39656-70585-JR201049
Bengaluru or Gurugram or Hyderabad or Manila or Limerick or San Juan or Indianapolis or California or Florida or New York or Georgia or Colorado or Virginia or Connecticut or Nevada or Ohio or Indiana or Kentucky or Missouri or Wisconsin
OnsiteFull Time
Carelon Global Solutions
Carelon Global Solutions: Healthcare operations and technology serving health plans, providers, and care systems as an Elevance Health subsidiary.
10+ YOE2+ MgmtRequires 10–14 years of Python programming experience, 2–3 years of team management, a B.E./B.Tech, and expertise in GenAI, ML, LLMs, data pipelines, cloud platforms, and MLOps.
Python, NumPy, Pandas, scikit-learn, PyTorch, TensorFlow, Hugging Face Transformers, LangChain, Go, Rust, SQL, microservices, vLLM, FastAPI, AWS, Google Cloud Platform (GCP), Microsoft Azure, RAG
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