Machine Learning Infrastructure Engineer
Character.AI · Redwood City, CA
CHECKED 17H AGO
Applied AIremotesenior$150k–$350k
At a glance
Highlights
- Design and maintain training and serving infrastructure for ML research.
- Build tooling to monitor deployments and diagnose cluster failures at scale.
- Support interactive entertainment experiences used by 20M people monthly.
What they offer
- Top-notch health coverage for you & your family, majority of premium covered
- Generous 401(K) contribution
- Up to 20 weeks paid parental leave
- 4 weeks of PTO
- Daily in-office catering plus monthly Doordash stipend
- Monthly wellness stipend
- Equity
Ideal candidate
Seasoned ML infrastructure engineer who thrives supporting research teams and keeping large-scale training reliable. You care about performance, observability, and maximizing compute impact.
Requirements
- 4+ years of experience supporting infrastructure within an ML environment
- Experience developing tools to diagnose ML infrastructure problems and failures
- Experience with cloud platforms (e.g., Compute Engine, Kubernetes, Cloud Storage)
- Experience working with GPUs
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