Principal Research Engineer, Post-Training
Character.AI · Redwood City, CA
CHECKED 16H AGO
Applied AIonsiteprincipal$275K – $400K
At a glance
Highlights
- Lead post-training research to advance frontier model capabilities.
- Shape model behavior through alignment and evaluation innovation.
Ideal candidate
A deeply technical research leader who loves post-training challenges and mentoring others to push frontier models forward.
Lab profile
About Character.AI
Builds personalized AI companions users can create, customize, and chat with.
What they build
- Character.AI chat platform
- Custom AI character creation tools
- iOS and Android companion apps
Known for
- Conversational and companion AI
- Discovery, recommendation and search
- Model alignment and safety
- Large-scale AI infrastructure
Key facts
- Founded in 2021
- Headquartered in Palo Alto, California
- Backed by Andreessen Horowitz