Research Engineer, Mid-Training
Cognition is hiring for Research Engineer, Mid-Training in San Francisco. Senior level. First seen August 7, 2026; open as of November 11, 2026. Jobs taken straight from company career pages — no aggregator in between.
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- Company
- Cognition
- Where
- San Francisco
- Level
- Senior
- First seen
- August 7, 2026
- Listed via
- Ashby
What the posting says
You will own the late-stage training decisions that determine what our models are fundamentally capable of: data mix and quality uplift, annealing schedules, context length extension, capability injection across coding, math, and reasoning, and the synthetic data strategies that make all of it scale. This role does cross-cutting work across what is classically considered both pre-training and post-training. We don't distinguish between research and engineering; we expect both. WHAT YOU'LL ACCOMPLISH - Data Mix and Quality Uplift: Design and iterate on high-quality data mixtures for…
Read more and apply on Cognition's site
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