Fastapi jobs in o'fallon, mo

Full Stack Developer- React, TypeScript, Python/FastAPI, and Google Cloud Platform- Must be on w2

Remote

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3d ago

Title: Software Engineer ( Full Stack)- React, TypeScript, Python/FastAPI, and Google Cloud Platform Duration: 6 Months Remote Scope: The engineer will be part of the technical team building a solution that Accelerates the activation of a clinical trial from the time we get a protocol from a sponsor (pharma) to the time we can enroll the first patient. The focus of Software Engineers will be on the UI/UX and application back end components supporting the UI and data flows. Requirements: UI/U

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Contract

Up to 80

Remote Senior Backend Engineer (Python/FastAPI)

Remote

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Yesterday

About Us: Based in San Francisco, California, Turing is the worlds leading research accelerator for frontier AI labs and a trusted partner for global enterprises deploying advanced AI systems. Turing supports customers in two ways: first, by accelerating frontier research with high-quality data, advanced training pipelines, plus top AI researchers who specialize in software engineering, logical reasoning, STEM, multilinguality, multimodality, and agents; and second, by applying that expertise to

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Contract

200 - 300

Golang Engineer

Hybrid in O'Fallon, Missouri

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Today

Job Title: Senior Golang Engineer Location: OFallon, MO (Hybrid) Duration: 6+ Months Contract Job DescriptionWe are seeking a Senior Golang Engineer with strong backend development experience in GoLang, Python, and AWS to build scalable, cloud-native applications. The ideal candidate will have hands-on experience developing microservices from scratch, building proofs of concept (POCs) and prototypes, and implementing CI/CD pipelines. The project involves building a cloud-native payment orchestra

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Contract

Depends on Experience

Python AI Engineer

Remote

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Yesterday

Job Description As a Python AI Engineer, you will be a part of an Agile team to build healthcare applications and implement new features while adhering to the best coding development standards. Responsibilities / Required Skills 10+ years of experience.Strong experience in Python development.Strong proficiency in Python frameworks:FastAPIFlaskDjangoHands-on experience with Machine Learning and AI concepts, including:Supervised learningUnsupervised learningModel evaluation and validationExperienc

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Third Party, Contract

Depends on Experience

Senior Full Stack Developer / Front end developer

Remote

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10d ago

Title: Senior Full Stack Developer/ Front end developerLocation: RemoteLong term contractHere are the 3 bullets that I mentioned on the call, they should be in the JDs as well.The must-have skills include proficiency in Python and JavaScript.For Django experience, candidates can alternatively have experience with Flask, FastAPI, Falcon, or SQLAlchemy.Similarly, for Vue.JS experience, alternatives include React, Svelte, or Angular (version 1.6 or higher).The interview will be conducted virtually

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Contract

Depends on Experience

Lead / Sr AI Full Stack Engineer - Remote Position

Remote

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Today

Available rate : $75/hr on W2 - $80/hr on W2 (no benefits) About R Systems: R Systems is a global leader in technology and analytics services, delivering innovative solutions to drive digital transformation across industries like Telecom, Banking, Healthcare, and Public Services. With over 4,400 professionals in 25+ countries, we are committed to helping our clients achieve operational excellence and enhanced customer experiences. We are proud to be Great Place to Work Certified in 10 countries

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Contract, Third Party

75 - 85

Senior Tech Mobile Agentic AI Developer

St. Louis, Missouri

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21d ago

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

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Contract

Depends on Experience

Sr. Staff Software Engineer - Agentic AI Products

Remote

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9d ago

The Sr. Staff Software Engineer - AI Agents will be the primary architect and technical lead for the team building all AI agents across the ecosystem. Acting as a hands-on leader and Technical Lead, you will be responsible for the team's overall delivery, translating complex product requirements into actionable technical tasks for a small squad. You will design and build high-stakes agentic architectures that power our multi-sided marketplaceincluding buyer and seller-side agents, platform onboa

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Full-time

150,000 - 180,000

AI Lead Engineer / Architect - Only W2

Remote or Arkansas

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Today

Role: AI Lead Engineer / Architect Remote (US) Job Type: W2 Contract Experience Level: Lead / Architect exp is a must Responsibilities: Multi-Agent Architecture & Orchestration: Lead the design and implementation of 8 specialized agents using Python, FastMCP, and Google Cloud Platform Workload Identity. Oversee inter-agent dependencies, prompt engineering lifecycle, tool definitions, and agent-to-service communication LLM Governance & Tokenomics: Enforce centralized LLM routing via LiteLLM Gatew

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Contract

Python Developer - Entry Level

Remote

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Today

Python Developer - Entry LevelJob Title: Python DeveloperExperience: 0-2 YearsLocation: RemoteEmployment Type: Full-Time / Contract Job DescriptionWe are hiring an entry-level Python Developer to join a technology team supporting application development, backend services, APIs, and data-driven solutions. This opportunity is well suited for entry level candidates and early-career professionals with strong Python fundamentals and hands-on academic or project experience. ResponsibilitiesDevelop and

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Full-time

60,000 - 90,000

Staff Software Engineer

Remote

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14d ago

As a Staff Software Engineer you will be part of the new Product Engineering team tasked with designing and building the next generation of Agentic AI-powered products. Acting as the Technical Lead and Primary Architect, you will be a hands-on leader responsible for the teams overall delivery. You will lead a small team by decomposing complex product requirements into actionable tasks, providing technical mentorship, and guiding the architectural direction while remaining deeply embedded in the

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Full-time

150,000 - 180,000

Ontology Engineer – Knowledge Graph & Agentic AI (Neo4j / Graphwise)

Remote

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13d ago

< dir="ltr">Job SummaryWe are seeking an experienced Ontology Engineer with deep expertise in Knowledge Graphs, Agentic AI and enterprise AI architectures. You will design, build and deploy intelligent, context-aware solutions that combine semantic reasoning, RAG, GraphRAG and multi-agent orchestration to solve complex enterprise business challenges. The role requires strong hands-on experience with Neo4j and Graphwise, using knowledge graphs as the foundational layer for ontology definition, ag

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Contract

Depends on Experience

Lead Full Stack Developer

Remote or Hybrid

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Today

Remote Only W2 - No Corp to Corp Open to Sponsorship PLEASE NO OPT'S OR EAD'S Strong hands-on experience with Python, FastAPI, React, TypeScript, PostgreSQL, REST/OpenAPI, Kubernetes/EKS, Argo CD, and Okta/OIDC. Experience designing distributed services, semantic-search or LLM-enabled applications, security controls, and production observability. Own technical design, service and API contracts, engineering backlog, code quality, technical mentoring, risk resolution, and release readiness.

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Contract

Cloud Generative AI Engineer - Columbia, SC, Atlanta, GA, Charlotte, NC, Raleigh, NC, Durham, NC.

Remote or Columbia, South Carolina

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Today

Job Title: Cloud Generative AI Engineer Location: Columbia, SC, Atlanta, GA, Charlotte, NC, Raleigh, NC, Durham, NC. Looking for W2 candidates. No C2C Job Summary We are seeking a Cloud Generative AI Engineer with expertise in cloud-native AI development, production deployments, and enterprise AI integration using Azure AI Foundry, AWS Bedrock, or Google Vertex AI. Key Responsibilities Develop cloud-native AI applications. Build scalable RAG solutions. Integrate AI services with enterprise APIs.

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Contract

Depends on Experience

Staff Backend Engineer | Distributed Systems

Remote

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15d ago

Hiring: Staff Backend Engineer | Distributed Systems We are looking for a highly experienced Staff Backend Engineer with12+ years of software engineering experience in designing and building scalable backend services and distributed systems. Key Skills & Technologies: Python, FastAPI or equivalent backend frameworks Apache Kafka & event-driven architectures Microservices, REST APIs & distributed systems AWS / Azure, Docker & Kubernetes PostgreSQL, Redis & NoSQL databases System design, sca

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Contract

Depends on Experience

AI Platform Engineer -Agentic AI

Remote

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15d ago

Hiring: AI Platform Engineer | Agentic AI We are looking for talented AI Engineers with hands-on experience building and deploying production-grade AI platforms, similar to the engineering challenges at companies like Extreme Networks. Key Skills & Technologies: Python, FastAPI, LangGraph Agentic AI, agent orchestration & multi-agent systems AWS / Azure, Docker & Kubernetes Knowledge Graphs: Neo4j, GraphRAG RAG: LlamaIndex, LangChain, Vector Databases Context engineering, context windows &

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Contract

Depends on Experience

Application Developer

Remote

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16d ago

Role SummaryThis position designs, develops, tests, and deploys scalable Python applications and microservices within cloud-hosted or hybrid environments. The role focuses on delivering clean, maintainable, and well-documented software while collaborating with cross-functional teams on application architecture, API development, data modeling, and technical solutions that support business and product requirements. Responsibilities Design, develop, test, and maintain scalable Python applications a

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Third Party, Contract

Depends on Experience

Senior Principal Python Fullstack Engineer

Remote

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11d ago

Were looking for an Senior Principal Python Fullstack Engineer who can take ownership of end-to-end application architecture, development, cloud infrastructure, and deployment. Experience: 10+ Years Key Skills Required Strong Python expertise FastAPI / Django / Flask Frontend React / Vue / Angular RESTful / GraphQL API development PostgreSQL / Azure SQL MongoDB / Azure Cosmos DB Strong Azure Infrastructure experience AKS / App Services / Azure Functions Azure Networking, VNets, Key Vault, IAM,

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Full-time

Depends on Experience

Senior Backend Engineer GoLang & Python

O'Fallon, Missouri

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Today

Key Responsibilities Build scalable, domain-driven microservices using GoLang and Python FastAPI, integrating backend APIs with mobile SDKs to establish a reliable orchestration layer Develop and maintain cloud-native backend services supporting payment orchestration and digital service integration Deploy and operate cloud-native services on AWS ECS, Fargate, and ARM64 architecture using AWS Graviton Provision and automate infrastructure using AWS CloudFormation and Terraform Build and inte

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Contract

DOE

Senior Software Engineer- Sr Java Full Stack Developer

O'Fallon, Missouri

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3d ago

Job Title: Senior Software Engineer- Sr Java Full Stack Developer Work Location: O'Fallon, MO Work Mode: Hybrid Work Auth: All Visas accepted (No H1 and No Fake Profiles) Experience: 8 12+ Years Education: Bachelor's Degree or equivalent professional experience Important: Only candidates who are currently located in or near O'Fallon, Missouri and are comfortable working in a hybrid environment will be considered. Job Summary We are seeking an experienced Senior Java Full Stack Developer to

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Full-time, Part-time, Contract, Third Party

USD 0-75

Fastapi jobs in O'Fallon, MO, USA