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Research Scientist: Pretraining

Generalist AI· Technical Staff
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San Francisco Bay Area (San Mateo) or Boston (Somerville)$240k - $350k + equityFull-timePosted 3mo ago

About the role

Research Scientist focused on pretraining large-scale robot foundation models using multimodal robotic data, responsible for designing and running core large-scale pretraining efforts to enable general capabilities across embodiments, tasks, and environments.

Responsibilities

  • Designing and executing large-scale pretraining runs for robot foundation models (transformer- and diffusion-based architectures)
  • Defining model architectures, objectives, and training curricula across multimodal robotic data (vision, action, state, language)
  • Developing scalable data mixtures and sampling strategies across petabyte-scale datasets
  • Guiding data collection operations towards new directions, as well as sourcing new datasets
  • Running ablations to understand scaling laws, data quality effects, and architecture tradeoffs
  • Collaborating closely with ML Infra and Systems to push cluster utilization, throughput, and reliability
  • Turning raw robotic interaction data into generalizable model capabilities

Qualifications

  • Have worked on large-scale ML systems with senior/staff (L6+) experience
  • Have deep experience training large transformer or diffusion models at scale (for generative models e.g. including language models, audio models, or video models)
  • Have led or significantly contributed to multi-node, multi-GPU distributed training efforts
  • Have worked on scaling laws, optimization dynamics, and large-model failure modes
  • Have strong PyTorch fundamentals and comfort debugging at every layer of the stack
  • Care about both empirical rigor and raw iteration speed
  • Are excited about building general-purpose robot intelligence from first principles

Skills

Required:Large-scale pretrainingModel architectures (transformers, diffusion)Multimodal data handlingDistributed trainingPyTorch
Last updated Sep 8, 2026. Interested? Apply on the company site.
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About Generalist AI

Generalist is a frontier AI research and product driven company building general intelligence for the physical world.

Generalist AI: a frontier AI research and product driven company building general intelligence for the physical world.

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