AI Research Scientist, Modeling & Toolcalling - Msl

Meta Meta · Big Tech · Menlo Park, CA

AI Research Scientist focused on LLM post-training, advancing agentic tool use, search, and personalization for real-world applications. Responsibilities include data curation, evaluation, research on training strategies, and leading technical projects.

What you'd actually do

  1. Work across the full LLM post-training stack
  2. Building high-quality training data, and designing and running evaluations
  3. Execute and iterate on post-training runs
  4. Own end-to-end LLM capability “hill-climbing”
  5. Conduct research on improved training and data curation strategies

Skills

Required

  • PhD degree in Computer Science or a related technical field
  • 2+ years of industry research experience in LLM/NLP, computer vision, or related AI/ML models
  • Deep, practical experience in LLM post-training
  • Experience as a technical lead on a team and/or leading complex technical projects from end to end
  • Extensive experience working on long horizon agents, agentic tool use, personalization, and/or search
  • Experience working on frontier-quality, state-of-the-art Large Language Models

Nice to have

  • Bachelor's degree in Computer Science, Computer Engineering, relevant technical field, or equivalent practical experience

What the JD emphasized

  • Published research in leading peer-reviewed conferences
  • First-author publications at top peer-reviewed conferences

Other signals

  • LLM post-training
  • agentic tool use
  • frontier capabilities