Anthropic
Research Scientist, Life Sciences (Computational Chemistry)
$300K–$320K
San Francisco, CA +1 · Full-time · Posted Oct 25, 2026
- Location
- San Francisco, CA
San Francisco, California, United States - Experience
- Years required correlate with internal job level; no specific number stated.
- Education
- PhD in chemistry, computational chemistry, or a related field. Logistics also lists a minimum of a bachelor’s degree or an equivalent combination of education, training, and/or experience.
- Visa sponsorship
- Visa sponsorship is available, but not for every role or candidate; the company says it will make every reasonable effort to obtain a visa after an offer.
About the job
Build chemistry-focused reinforcement learning environments, datasets, and evaluations to train Claude and measure its performance on real chemistry tasks.
What you'll do
- Design chemistry RL environments end to end, including task design, data curation, automated grading, and checks for shortcuts and data leakage.
- Develop datasets and evaluations with bench chemists and partners; assess real chemistry tasks and communicate results to research teams.
- Run and analyze training experiments, diagnose model failures, and ensure datasets and environments are high quality and documented.
What they ask for
- PhD in chemistry, computational chemistry, or a related field.
- Deep knowledge of organic and medicinal chemistry, including reactions, synthesis, and SAR, using experimental data as ground truth.
- Strong Python skills, solid machine learning fundamentals, and hands-on experience training and evaluating models.
- Ability to navigate ambiguity, work independently, collaborate across teams, and communicate effectively.
Nice to have
- Experience with reinforcement learning, large language models, evaluations, or benchmarks; or supporting drug discovery programs.
- Chemistry dataset curation, cheminformatics or molecular modeling skills, bench chemistry experience, or relevant publications, patents, or open-source software.
Pay
$300,000–$320,000 USD annual salary (base salary)
Tools
Python, Claude, RDKit
AI focus
Build training environments, datasets, and evaluations for Claude; run and analyze model-training experiments and assess chemistry capabilities.
Model-written summary · the original posting is authoritative