Research Engineer / Scientist, Memory

The role

You will design the long-term memory architecture for LLMs. You will work with a team of AI researchers and engineers to advance the field through open publishing of research.

What you will do

• Defining the key abstractions of the LLM memory layer
• Building memory architectures that support multiple memory types including temporal sequences, episodic experiences, semantic knowledge, and procedural skills
• Researching memory sharing between multiple agents that enable effective multi-agent collaboration
• Improving context management techniques that solve the long-context / context derailment problem
• Running evaluations for measuring and improving memory for agents

Required qualifications

• Deep expertise in LLMs and retrieval
• Track record of impactful research (breakthrough publications and/or open source contributions)
• Ability to balance execution speed with empirical rigor
• Real-world impact beyond pure academic work

Before you apply

• Initial screen (30 min)
• Technical screen (1-1.5 hours)
• Paid in-person work trial (2 days onsite in SF)

About the company

Letta was founded by the creators of MemGPT from UC Berkeley’s Sky Computing Lab. The company is building self-improving artificial intelligence agents.