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Staff Machine Learning Research Scientist, LLM Evals

United States, San Francisco 280000.00 - 380000.00 USD / Year · Job Posted February 20, 2026
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Job Description

As a Staff Machine Learning Research Scientist on the LLM Evals team, you will lead the development of novel evaluation methodologies, metrics, and benchmarks to measure the capabilities and limitations of frontier LLMs. You will help define what "good" looks like in generative AI, driving research that informs both our internal roadmap and the broader research community. This role is critical for designing and executing a roadmap that defines best practices in data driven AI development and will accelerate the next generation of generative AI models in partnership with top foundational model labs.

Job Responsibility

  • Drive research on the effectiveness and limitations of existing LLM evaluation techniques
  • Design and develop novel evaluation benchmarks for large language models, covering areas such as instruction following, factuality, robustness, and fairness
  • Communicate, collaborate, and build relationships with clients and peer teams to facilitate cross-functional projects
  • Collaborate with internal teams and external partners to refine metrics and create standardized evaluation protocols
  • Implement scalable and reproducible evaluation pipelines using modern ML frameworks
  • Publish research findings in top-tier AI conferences and contribute to open-source benchmarking initiatives
  • Mentor and guide research scientists and engineers, providing technical leadership across cross-functional projects
  • Stay deeply engaged with the ML research community, tracking emerging work and contributing to the advancement of LLM evaluation science
  • Thrive in a high-energy, fast-paced startup environment and are ready to dedicate the time and effort needed to drive impactful results.

Requirements

  • 5+ years of hands-on experience in large language model, NLP, and Transformer modeling, in the setting of both research and engineering development
  • Experience and track of recording in landing major research impacts in a fast-paced environment
  • Experience tech leading a team of research scientists and research engineers
  • Excellent written and verbal communication skills
  • Published research in areas of machine learning at major conferences (NeurIPS, ICML, ICLR, ACL, EMNLP, CVPR, etc.) and/or journals
  • Previous experience in a customer facing role.

What we offer

  • Comprehensive health, dental and vision coverage
  • retirement benefits
  • a learning and development stipend
  • generous PTO
  • equity based compensation
  • commuter stipend (may be eligible).

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