RUNREQ :: job/39fc41ad-4d39-8853-9d25-a9f00bf5d0e6
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← ANTHROPIC JOB LEDGER

Research Engineer / Research Scientist, RL Frontiers

SAN FRANCISCO, CA | NEW YORK CITY, NY | SEATTLE, WA / AI RESEARCH & ENGINEERING / TYPE NOT LISTED

SOURCE STATEOPENAPPLY AT ANTHROPIC ↗
FIRST SEENSEP 29, 2026RUNREQ OBSERVATIONDAYS OPEN1555D COMPANY MEDIANTEAM OPEN66AI RESEARCH & ENGINEERING30D TEAM+7NEWLY OBSERVEDTRACKED COMP$500K–$850K /YRDISCLOSED RANGE / ALL TIERSSOURCEVERIFIEDCHECKED 10H AGO
JOB DESCRIPTIONSHORTENED FROM SOURCE

Key responsibilities

4 ITEMS
  • Study how reinforcement learning training and sampling change with model size, context length, and compute, then improve efficiency.
  • Develop architectures and reinforcement learning algorithms, run them at frontier scale, and diagnose numerical, algorithmic, or system problems.
  • Build experimental infrastructure for fast, reproducible comparisons of architecture and algorithm variants at meaningful scale.
  • Own large reinforcement learning runs from research code through hardware, and investigate instability, divergence, and throughput regressions.

Qualifications needed

4 ITEMS
  • You hold a bachelor’s degree or equivalent education, training, or experience in a relevant field.
  • You understand transformer language models, including architecture, training dynamics, and large-scale optimization.
  • You have trained large models in distributed systems using data, tensor, and pipeline parallelism.
  • You show original technical work, rigorous experiments, quantitative cost analysis, and strong Python and JAX or PyTorch programming.
EVENT>Anthropic :: Research Engineer / Research Scientist, RL Frontiers first observed 15 days ago