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# AI Engineer job in San Francisco

- **Company:** Little Maintenance Co Inc
- **Location:** San Francisco, CA, United States
- **Experience:** Starter
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Python (Programming Language), PostgreSQL, Open Source Technology, Redis, Session Management, Large Language Models, Backend, Fastapi, Api Design
- **Published:** August 2, 2026
- **Apply:** https://jobs.diversity.com/career/2438438/ai-engineer-california-ca-san-francisco

## About the Role

* 1-2 years of backend/full-stack experience with production systems
 * Passion for open source and user engagement
 * Experience working with the OpenAI api (understand the difference between /chat/completions and /responses, and can speak to API-specific nuances)
 * Strong work ethic and ability to thrive in small teams
 * Eagerness to talk to users and help solve real problems

## Description

As the Backend LLM Engineer, you'll be responsible for ensuring LiteLLM unifies the format for calling LLM APIs in the broader OpenAI + Anthropic spec. This involves writing transformations to convert API requests from OpenAI/Anthropic spec to various LLM provider formats, building provider-agnostic unification functionality (e.g. session management across non-openai models for /v1/responses API, etc.). You'll work directly with the CEO and CTO on critical projects including:

 * System design for supporting provider level features at the gateway level (skills, compaction, batches, etc.)
 * Thinking about the developer experience - to support millions of users who leverage your work via LiteLLM's Python SDK
 * Building across LLM's, MCP's, and Agents by maintaining an excellent LLM interoperability layer, supporting a wide range of MCP Auth flows and enabling various Agent use-cases

What is our tech stack

The tech stack includes Python, FastAPI, Redis, Postgres.


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