Location: San Francisco
Job Type: Full-time
Salary: $170K - $220K
Experience: Any (new grads ok)
Visa: US citizen/visa only
LiteLLM is the world's most popular AI Gateway, trusted by companies like Adobe, Netflix, and NASA. We're building the next generation of infrastructure for AI applications—and now we're building our second product.
What you will be working on
Skills: Python, LLM APIs, FastAPI
As the AI 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.
Who we are looking for
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
Why Join LiteLLM?
Work directly with the founders every day.
Build products used by thousands of engineering teams around the world.
Own meaningful product decisions—not just implementation.
Move incredibly fast and see your work in production immediately.
Help define the future of AI infrastructure and developer tooling.
Competitive salary, equity, health, dental, and vision benefits.
About LiteLLM
LiteLLM is the world's most widely adopted AI Gateway. We provide a unified API for 100+ LLM providers along with routing, authentication, budgets, observability, and governance for production AI systems. Thousands of companies rely on LiteLLM to power AI in production.
If you love talking to users, building products, and shipping software that people actually use, we'd love to meet you.
Summary
Build and maintain LiteLLM's LLM API unification and provider transformations across OpenAI and Anthropic specs, working directly with founders on gateway features, MCP flows, and agent support. Requires 1-2 years of backend or full-stack production experience and familiarity with the OpenAI API. Python, FastAPI, Redis, and Postgres are used.
Responsibilities
Unify LLM API request formats across OpenAI and Anthropic specs; build provider transformations and provider-agnostic functionality; work with founders on gateway features, MCP flows, and agent use cases; support millions of users via the Python SDK.
Qualifications
1-2 years of backend or full-stack production experience; OpenAI API experience; passion for open source; strong work ethic; eagerness to talk to users.
Experience requirements
1-2 years of backend or full-stack production experience; OpenAI API experience; passion for open source; strong work ethic; eagerness to talk to users.
Benefits
Competitive salary, equity, health, dental, and vision benefits.