Member of Technical Staff - Post-Training is open at Reflectionai in San Francisco, CA. The posting gives no salary; similar roles in the United States advertise a median of $194K. Posted on Aug 10, 2026, and still on Reflectionai’s careers page when we last checked, on Nov 14, 2026.
About the role
Build systems that transform powerful pre-trained models into aligned and general agents. - Drive research and engineering initiatives that push the frontier of post-training, from data curation to large-scale optimization. - Develop data generation pipelines, reward models, reinforcement learning algorithms, and inference-time scaling techniques. - Collaborate across pre-training and post-training teams to deliver…
The opening lines of the posting. The rest is on Reflectionai’s careers page.
Hiring at Reflectionai
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