Saint Louis, MO · On-site
$99K - $136K/yr
... FastAPI - Prompt engineering - system prompts, few-shot, structured JSON output - Circuit breaker patterns, retry logic, resilient service design - PostgreSQL and async ORMs (SQLAlchemy async ...
Saint Louis, MO · On-site
$99K - $136K/yr
... FastAPI - Prompt engineering - system prompts, few-shot, structured JSON output - Circuit breaker patterns, retry logic, resilient service design - PostgreSQL and async ORMs (SQLAlchemy async ...
Saint Louis, MO · On-site
... FastAPI - Prompt engineering - system prompts, few-shot, structured JSON output - Circuit breaker patterns, retry logic, resilient service design - PostgreSQL and async ORMs (SQLAlchemy async ...
Saint Louis, MO · On-site
... FastAPI - Prompt engineering - system prompts, few-shot, structured JSON output - Circuit breaker patterns, retry logic, resilient service design - PostgreSQL and async ORMs (SQLAlchemy async ...
Saint Louis, MO · On-site
$99K - $136K/yr
... FastAPI - Prompt engineering - system prompts, few-shot, structured JSON output - Circuit breaker patterns, retry logic, resilient service design - PostgreSQL and async ORMs (SQLAlchemy async ...
Saint Louis, MO · On-site
$99K - $136K/yr
... FastAPI - Prompt engineering - system prompts, few-shot, structured JSON output - Circuit breaker patterns, retry logic, resilient service design - PostgreSQL and async ORMs (SQLAlchemy async ...
Saint Louis, MO · On-site
$130 - $180/hr
Job Title: Software Engineer Location: St. Louis, MO Security Clearance: Active TS/SCI (or SCI ... Experience building backend web services using FastAPI or Node.js * Experience working with ...
Saint Louis, MO · On-site
$130 - $180/hr
Job Title: Software Engineer Location: St. Louis, MO Security Clearance: Active TS/SCI (or SCI ... Experience building backend web services using FastAPI or Node.js * Experience working with ...
O Fallon, MO · Hybrid
$97K - $134K/yr
Excellent Python engineering skills including async programming, API development (FastAPI), and building inference-ready microservices; SQL proficiency required. Hands-on experience with cloud AI ...
O Fallon, MO · Hybrid
$97K - $134K/yr
Excellent Python engineering skills including async programming, API development (FastAPI), and building inference-ready microservices; SQL proficiency required. Hands-on experience with cloud AI ...
O Fallon, MO · On-site
$97K - $134K/yr
Title and Summary Senior AI Engineer Mastercard's Business & Market Insights (B&MI) group empowers ... FastAPI), and building inference-ready microservices; SQL proficiency required. • Hands-on ...
O Fallon, MO · On-site
$97K - $134K/yr
Title and Summary Senior AI Engineer Mastercard's Business & Market Insights (B&MI) group empowers ... FastAPI), and building inference-ready microservices; SQL proficiency required. • Hands-on ...
... FastAPI, and Node.js. * Integrated AI capabilities with enterprise systems, data platforms, APIs ... and DevOps tooling. * Applied expertise in distributed systems, scalability, observability ...
... FastAPI, and Node.js. * Integrated AI capabilities with enterprise systems, data platforms, APIs ... and DevOps tooling. * Applied expertise in distributed systems, scalability, observability ...
... FastAPI, and Node.js. * Integrated AI capabilities with enterprise systems, data platforms, APIs ... and DevOps tooling. * Applied expertise in distributed systems, scalability, observability ...
... FastAPI, and Node.js. * Integrated AI capabilities with enterprise systems, data platforms, APIs ... and DevOps tooling. * Applied expertise in distributed systems, scalability, observability ...
Earth City, MO · On-site
$98.18 - $115.50/hr
... FastAPI, and Node.js. * Integrated AI capabilities with enterprise systems, data platforms, APIs ... and DevOps tooling. * Applied expertise in distributed systems, scalability, observability ...
Earth City, MO · On-site
$98.18 - $115.50/hr
... FastAPI, and Node.js. * Integrated AI capabilities with enterprise systems, data platforms, APIs ... and DevOps tooling. * Applied expertise in distributed systems, scalability, observability ...
... engineering standards. Experience with cloud-native technologies, particularly Kubernetes and ... FastAPI or similar) Solid understanding of object-oriented design, design patterns, and system ...
... engineering standards. Experience with cloud-native technologies, particularly Kubernetes and ... FastAPI or similar) Solid understanding of object-oriented design, design patterns, and system ...
Saint Louis, MO · Remote
$150K - $170K/yr
What You Bring Required * 8+ years in software or platform engineering with 3+ years managing ... Hands-on credibility in a modern web stack - you can review a React/TypeScript or Python/FastAPI PR ...
Saint Louis, MO · Remote
$150K - $170K/yr
What You Bring Required * 8+ years in software or platform engineering with 3+ years managing ... Hands-on credibility in a modern web stack - you can review a React/TypeScript or Python/FastAPI PR ...
$11.53 - $16.48
4% of jobs
$16.48 - $21.43
9% of jobs
$24.98 is the 25th percentile. Wages below this are outliers.
$21.43 - $26.37
17% of jobs
$26.37 - $31.32
13% of jobs
The median wage is $34.21 / hr.
$31.32 - $36.27
13% of jobs
$36.27 - $41.22
10% of jobs
$41.22 - $46.16
9% of jobs
$47.09 is the 75th percentile. Wages above this are outliers.
$46.16 - $51.11
9% of jobs
$51.11 - $56.06
7% of jobs
$56.06 - $61.01
6% of jobs
$61.01 - $65.95
4% of jobs
$11
$37
$65
For Fastapi Programmer jobs in Wentzville, MO, the most frequently searched job titles are:
Saint Louis, MO • On-site
$99K - $136K/yr
Other
Posted 16 days ago
We are looking for a skilled AI/ML Developer to join our agentic platform team. You will design, develop, and deploy LLM-powered agents and pipelines that directly serve field technicians in production. You will work closely with the platform architect and contribute to the core multi-agent orchestration system.
Required Skills & Experience
Must-Have
- 10+ years of software development with strong Python expertise in production environments
- 2+ years hands-on LLM development (LangChain, LangGraph, or equivalent frameworks)
- RAG pipeline experience - embeddings, vector search, re-ranking, answer generation
- LLM APIs - OpenAI Chat Completions, Responses API, streaming, tool calling
- Async Python - asyncio, httpx, FastAPI
- Prompt engineering - system prompts, few-shot, structured JSON output
- Circuit breaker patterns, retry logic, resilient service design
- PostgreSQL and async ORMs (SQLAlchemy async / Alembic)
- Git, CI/CD, Docker, Kubernetes basics
- Strong system design skills - microservices, distributed systems, API design
Nice-to-Have
- LangGraph StateGraph (conditional edges, node pipelines, compiled graphs)
- Multi-agent systems - orchestration, routing, RBAC-based access control
- Langfuse or similar LLM observability (tracing, token usage, latency)
- WebSocket and SSE streaming protocols
- Multi-modal AI (vision models, image analysis)
- Vector databases (OpenSearch, Pinecone, pgvector)
- AWS services (Aurora PostgreSQL, SSM, IAM, EKS)
- Telecommunications or field service domain experience
