Research Engineer, Post-Training (All Industry Levels)
Character.AI is hiring for Research Engineer, Post-Training (All Industry Levels) in Redwood City or New York City. Mid level. First seen August 6, 2026; open as of November 12, 2026. Jobs taken straight from company career pages — no aggregator in between.
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- Company
- Character.AI
- Where
- Redwood City or New York City
- Level
- Mid
- First seen
- August 6, 2026
- Listed via
- Ashby
What the posting says
The Post-Training team is responsible for developing our powerful pretrained language models into intelligent, engaging, and aligned products. As a Post-Training Researcher, you will work across teams and our technical stack to improve our model performance and training methods, including data, compute and algorithms. You will get to shape the conversational experience of millions of users per day. WHAT YOU'LL DO - Develop alignment algorithms and loss functions to improve data sample efficiency. - Write data pipelines to process diverse web data into a format models can ingest. - Identify…
Read more and apply on Character.AI's site
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