Research Scientist - Environments, Data and Post-Training
Mercor is hiring for Research Scientist - Environments, Data and Post-Training in San Francisco. Senior level. First seen September 19, 2026; open as of November 10, 2026. Jobs taken straight from company career pages — no aggregator in between.
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- Company
- Mercor
- Where
- San Francisco
- Level
- Senior
- First seen
- September 19, 2026
- Listed via
- Ashby
What the posting says
You will develop new training and evaluation methods, test them through rigorous experiments, and implement successful approaches at scale. Working with researchers, engineers, domain experts, and customers, you will investigate how data, rewards, environments, and optimization methods shape model behavior. Your work will influence frontier models, Mercor’s products, and the broader research community through releasing blogposts, technical reports, and papers. WHAT YOU’LL DO - Implement novel post-training methods that improve model reasoning, tool use, and agentic behavior. - Develop new…
Read more and apply on Mercor's site
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