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Python Fastapi Developer Jobs in California (NOW HIRING)

Data Engineer (Senior)

San Francisco, CA · On-site

$124K - $169K/yr

The backend is built using Python (FastAPI) and supported by AWS services such as Lambda and ... Redis Bonus Skills Experience in financial technology Full-stack engineering capabilities with ...

... developer tools, marketplace, billing, admin) • Develop high-performance UIs using React • Design and implement APIs and backend services using Python (FastAPI) and/or Node.js • Define clean ...

Senior Product Engineer

Palo Alto, CA · On-site

$140K - $250K/yr

Experience with Python, FastAPI, and a background in B2B SaaS preferred * Top 15 school required if under 2 years of experience Company Context * Transitioning all engineers to full-stack roles

Product Engineer

San Francisco, CA · On-site +1

$150K - $250K/yr

TypeScript, Python, SQL, cloud infrastructure, LLMs (React frontend, Python/FastAPI backend) Requirements * 0 to 5 years of experience as a full-stack or product engineer. * A track record of ...

Product Engineer

San Francisco, CA · On-site

$150K - $250K/yr

TypeScript, Python, SQL, cloud infrastructure, LLMs (React frontend, Python/FastAPI backend) Requirements * 0 to 5 years of experience as a full-stack or product engineer. * A track record of ...

Production experience with Python and FastAPI. * Experience with infrastructure, developer tools, or LLM products. * Experience building products in a high-growth, early-stage environment. Benefits ...

You'll use these skills, along with tools like React, TypeScript, Python, FastAPI, Snowflake, dbt, AWS (ECS Fargate, Lambda, S3), and AWS CDK. Together with the talented Engineering Team, Product ...

SuperDial - FDE

San Francisco, CA · On-site

$130K - $160K/yr

We're looking for a Forward Deployed Engineer with strong Python experience and a product mindset ... Design and implement backend services and APIs using Python (FastAPI or similar) * Work directly ...

Production experience with Python and FastAPI. * Experience with infrastructure, developer tools, or LLM products. * Experience building products in a high-growth, early-stage environment.

New

We are seeking an experienced Python Backend Engineer to design, develop, and maintain scalable ... Build and optimize RESTful APIs using FastAPI, Django, or similar frameworks. * Develop and ...

We are seeking an experienced Python Backend Engineer to design, develop, and maintain scalable ... Build and optimize RESTful APIs using FastAPI, Django, or similar frameworks. Develop and integrate ...

Python Developer-F2F Interview

San Jose, CA · On-site

$59 - $81.25/hr

Python developer the following expertise 1. Expertise in developing production level code utilizing OOPs concepts , 2. Experience in developing FASTAPI services , 3. Expertise in managing code ...

Bonus points • Production experience with Python and FastAPI. • Experience with infrastructure, developer tools, or LLM products. • Experience building products in a high-growth, early-stage ...

Strong programming experience in Python. * Experience with React, Angular, or Vue.js. * Hands-on experience with FastAPI, Flask, or Django. * Strong understanding of HTML5, CSS3, JavaScript, and ...

Cloud & basic DevOps Must Have -- familiarity with AWS (EC2, S3, Lambda) or similar, and ... TypeScript, React, Next.js, Node.js, Express, Python, FastAPI, PostgreSQL, Prisma, GraphQL ...

Showing results 41-60

Python Fastapi Developer information

What is a Python FastAPI developer?

A Python FastAPI Developer is responsible for designing, developing, and maintaining backend applications using FastAPI, a modern web framework for building APIs with Python. They work on creating high-performance APIs, integrating with databases, implementing authentication, and ensuring scalability. This role often involves working with asynchronous programming, cloud services, and containerization tools like Docker. Developers collaborate with teams to create efficient, secure, and well-documented API endpoints for web and mobile applications.

What are some typical daily tasks for a Python FastAPI developer?

A Python FastAPI Developer typically spends their day designing, developing, and maintaining RESTful APIs to support web or mobile applications. This involves writing clean and efficient Python code, collaborating with frontend developers or other backend engineers to integrate new features, and ensuring the application meets performance and security standards. Developers also participate in code reviews, debugging, and continuous integration processes, while regularly communicating with product managers or stakeholders to align on project requirements. Staying up to date with FastAPI enhancements and industry best practices is also a common part of the role.

What are the key skills and qualifications needed to thrive in the Python FastAPI developer position, and why are they important?

To thrive as a Python FastAPI Developer, you need strong proficiency in Python programming, experience designing RESTful APIs with FastAPI, and a background in web development concepts. Familiarity with version control systems like Git, containerization tools such as Docker, and knowledge of cloud platforms or SQL/NoSQL databases are commonly required, and certifications in cloud services or Python development can be advantageous. Excellent problem-solving skills, effective communication, and the ability to collaborate in agile teams help developers contribute efficiently to complex projects. These competencies ensure robust, scalable backend solutions and smooth coordination within development teams to meet business goals.

What job categories do people searching Python Fastapi Developer jobs in California look for?

The top searched job categories for Python Fastapi Developer jobs in California are:

What cities in California are hiring for Python Fastapi Developer jobs?

Cities in California with the most Python Fastapi Developer job openings:

Infographic showing various Python Fastapi Developer job openings in California as of September 2026, with employment types broken down into 33% Full Time, and 67% Contract. Highlights an 100% In-person job distribution.

GenAI Engineer - LLM Infrastructure & Inference Services

Los Gatos, CA • On-site

2T Consulting
IT Services • 51 - 200 employees

$125K - $164K/yr

Full-time

Posted 17 days ago


Job description

We are looking for a GenAI Engineer with strong expertise in LLM infrastructure, model deployment, and high-performance inference services. The ideal candidate will build and manage scalable enterprise GenAI platforms across GPU infrastructure and cloud environments.

Key Responsibilities
  • Deploy, host, and manage Large Language Models (LLMs) on GPU infrastructure for production environments.
  • Build scalable, high-performance inference services using vLLM, TensorRT-LLM, Triton Inference Server, and Ray Serve.
  • Optimize model serving for latency, throughput, GPU utilization, and cost efficiency.
  • Develop AI platform services and APIs using Python, FastAPI, Microservices, and Kubernetes.
  • Implement RAG pipelines, vector databases, and agentic AI frameworks such as LangChain and LangGraph.
  • Manage GPU infrastructure, containerization, and cloud deployments across AWS, Azure, or GCP.
  • Establish MLOps/LLMOps practices including CI/CD, model deployment, monitoring, observability, and governance.
  • Perform performance tuning, benchmarking, capacity planning, and production support for enterprise GenAI platforms.
  • Collaborate with architects, data scientists, and product teams to deliver scalable, secure, and reliable AI solutions.
Core Technologies
  • LLM: vLLM, TensorRT-LLM, Triton Inference Server, Ray Serve
  • AI/GenAI: RAG, LangChain, LangGraph, Vector Databases
  • Development: Python, FastAPI, Microservices
  • Infrastructure: Kubernetes, Docker, GPU Infrastructure
  • Cloud: AWS, Azure, GCP
  • MLOps/LLMOps: CI/CD, Monitoring, Observability, Model Deployment, Governance