AI Engineer

LiteLLM; United States; On-site; USD 110,000 - 150,000; Full time

Benefits offered by this job

Equity

Health benefits

Dental

Vision

Job summary

LiteLLM is hiring an AI Engineer to unify API formats across OpenAI/Anthropic specs and create a provider-agnostic gateway. You will transform requests, manage sessions, and influence product direction with the CEO and CTO in a fast-moving environment.

You will work on system design, developer experience, and interoperability across LLMs and MCPs, contributing to a Python SDK used by thousands of engineers and shaping the future of AI infrastructure.

Qualifications

• 1-2 years of backend/full-stack experience with production systems.
• Passion for open source and user engagement.
• Experience working with the OpenAI API and understanding /chat/completions vs /responses.
• Strong work ethic and ability to thrive in small teams.
• Eagerness to talk to users and help solve real problems.

Responsibilities

• System design for provider level features at gateway level (skills, compaction, batches).
• Improve developer experience for LiteLLM's Python SDK used by millions of users.
• Build across LLMs, MCPs, and Agents with an interoperability layer and various auth flows.

Skills

Python

LLM APIs

FastAPI

Tools

Redis

PostgreSQL

Python

FastAPI

Job description

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.