Principal Research Engineer, Post-Training
EmployerCharacter.AI
LocationRedwood City, CA
Pay$275,000 – $400,000 per year
Posted2026-06-22
Confirmed open2026-10-26
Apply on the employer’s site Open in Atlas
About this role
About the Role and Team As a Principal Research Engineer on the Post-Training team, you will drive the technical vision, execution, and evolution of the systems that transform foundation models into intelligent, engaging, and aligned products. Specifically, your team focuses on post-training of top-tier OSS LLMs (such as Mistral and Qwen) to power the highly immersive role-playing chat features…
Excerpt only. The full posting is on the employer’s careers site.
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