Machine Learning Infrastructure Engineer

Character.ai
Redwood City
Workplace: OnsiteFull time150,000 - 350,000 annuallyFunction: DevOps, Cloud & InfrastructureExperience: 4+ yearsSkills: []

Seasoned ML infrastructure engineer designing, building, and maintaining training and serving infrastructure for ML research; you’ll optimize GPU usage, diagnose cluster issues, and collaborate with ML researchers to keep deployments reliable and efficient.

Loading

Loading job details...

Preparing the role view and application actions.

FursaFursa
Character.ai
Character.ai
1 year ago

Machine Learning Infrastructure Engineer

✓ Verified Job

Canonical indexed version, validated from employer's careers page.

Source: Company careers pageValidated by: Fursa AI
Last checked: 1 hour agoStatus: Live

Job Summary

Seasoned ML infrastructure engineer designing, building, and maintaining training and serving infrastructure for ML research; you’ll optimize GPU usage, diagnose cluster issues, and collaborate with ML researchers to keep deployments reliable and efficient.
Location: Redwood City
Workplace: Onsite
Employment Type: Full time
Job Function: DevOps, Cloud & Infrastructure

Key Responsibilities

  • •Provide infrastructure support to our ML research and product.
  • •Build tooling to diagnose cluster issues and hardware failures.
  • •Monitor deployments, manage experiments, and generally support our research.
  • •Maximize GPU allocation and utilization for both serving and training.
  • •Ensure reliability of ML training and serving workloads.

Pay and Benefits

Salary: 150,000 - 350,000 annually
Equity and Bonus:Equity

Key Requirements

  • •4+ years of experience supporting the infrastructure within an ML environment.
  • •Experience in developing tools used to diagnose ML infrastructure problems and failures.
  • •Experience with cloud platforms (e.g., Compute Engine, Kubernetes, Cloud Storage).
  • •Experience working with GPUs.
  • •Experience with ML frameworks like PyTorch/TensorFlow/JAX.
Experience:4+ yearsMachine learningAI infrastructure
Tech Stack:Compute EngineKubernetesCloud StorageGPUsPyTorchTensorFlowJAX

Company Brief

Character.ai
Builds a conversational AI platform where users create and interact with lifelike AI characters for entertainment, learning, and productivity, backed by advanced large‑language‑model research and consumer-facing products.
Industry: AI & Machine Learning
Company Size: Medium (51 to 250 employees)
Growth: Scaleup
Valuation: Unicorn (USD 1B+)
Funding: Series A
Headquarters: Menlo Park, United States
Founded: 2021
Glassdoor
Glassdoor: 3.6
WebsiteLinkedInGlassdoor