Software Engineer, Agent Harness

San Francisco Office • FullTime

Posted 2y ago

Remote Work Policy

On-site

Employment Type

FullTime

Categories

AI Agent Engineer

About the job

Letta is building self-improving artificial intelligence, creating agents that continually learn from experience and adapt over time. Founded by the creators of MemGPT, our agents already power production systems at companies like 11x and Bilt Rewards. We are assembling a world-class team to solve AI’s hardest problem: making machines that can reason, remember, and learn the way humans do. As a Software Engineer, you will bridge the gap between bleeding-edge agent systems and production-grade software for running agents in real applications. You will help define developer APIs for agents, and lead development of our company’s OSS stack as well as the hosted service.

Responsibilities

  • Develop Letta's OSS agents framework and cloud service.
  • Design scalable and resilient backend services and APIs to support Letta Cloud.
  • Work with researchers to support bleeding-edge agent architectures.

Requirements

  • Strong proficiency with Python.
  • Strong understanding of how to architect services for security, reliability, and performance.
  • Ability to build scalable backend services.
  • Strong understanding of SQL databases (Postgres).
  • Familiarity with tooling across the AI stack, such as inference engines (e.g. vLLM, Ollama), and LLM provider APIs (OpenAI, Anthropic).
  • Proficiency with TypeScript, React, Tailwind is a bonus.

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