Letta

Letta

Research Engineer / Scientist, Post-Training

San Francisco Office

Sponsorship not specifiedDetected 533 days ago
PythonAlgorithmsDeep LearningPyTorchSparkLLMsResearch

About the role

  • You will pioneer post-training techniques that improve how well LLMs can be integrated into complete agentic systems.
  • At Letta, you'll work with a world-class, tight-knit team of AI researchers and engineers towards our vision of self-improving superintelligence.
  • Advance the field through open publishing of research through papers, technical reports, blog posts, and open-source code.

Responsibilities

  • You value titles or want to people-manage. Letta is a flat company where every researcher and engineer is an individual contributor.

Requirements

  • Ability to balance execution speed with empirical rigor
  • Proven track record of impactful research (breakthrough publications and/or open-source contributions)
  • You are fundamentally opposed to closed frontier AI that is controlled by a handful of billionaires and private tech companies.

Company info

  • creating agents that continually learn from experience and adapt over time.
  • Founded by the creators of MemGPT from UC Berkeley's Sky Computing Lab (the birthplace of Spark and Ray).
  • Backed by Jeff Dean, Clem Delangue, and pioneers across AI infrastructure.
  • Our agents already power production systems at companies like 11x https://www.letta.com/case-studies/11x and Bilt Rewards https://www.letta.com/case-studies/bilt, learning and improving every day.
  • We're assembling a world-class team of researchers and engineers to solve
  • You like stability, and get stressed out when there's nobody telling you exactly what to do. We look for people that thrive in ambiguity and can intuit the most important problems by talking to customers and dogfooding our product.

This listing is sourced directly from Letta's careers page and normalized into a canonical job model.