Early-stage AI infrastructure team unifying large language model APIs under a single standard.

Rust Engineer

San FranciscoOn-site$230K - $290K2 - 5 years
You are a systems programmer who finds elegance in low-latency concurrency and gets energized by the chaos of integrating disparate AI models. Your days will focus on architecting high-throughput backend services in Rust that normalize requests across providers like Anthropic and Hugging Face into a seamless OpenAI-compatible format. This is not a wrapper job; you will solve hard distributed systems problems involving Redis caching, PostgreSQL persistence, and complex error handling for a rapidly growing developer platform.

What they're looking for

  • 2 to 5 years of professional experience writing production-grade Rust with a focus on performance and memory safety.
  • Deep familiarity with Python ecosystems and modern web frameworks like FastAPI for building robust API layers.
  • Proven track record designing scalable data architectures using PostgreSQL and Redis in high-traffic environments.
  • Strong understanding of LLM providers, tokenization strategies, and the nuances of working with generative AI APIs.
  • Ability to thrive in a small, on-site San Francisco team where direct ownership of critical infrastructure is expected.

Tech stack

RustPythonPostgreSQLRedisFastAPIOpenAIAzure

Apply for this role

We use AI to help match your experience to the roles where you fit best. A member of our team reviews every application, and all hiring decisions are made by people.

This role is one we're recruiting for on behalf of a client company; the client's identity is kept confidential at this stage. A Fluency recruiter will follow up with details.

Share this role