Software Engineer, Applied ML (Discovery, Recommendation & Search)
Character.AI10 months ago
Base Salary
$200k - $300k/yr
Responsibilities
- Design and implement applied ML models and infrastructure for discovery, recommendation, ranking, and search.
- Build and optimize ML backend systems supporting AI-generated content formats and existing product systems.
- Develop data pipelines, model training workflows, and model serving infrastructure.
- Collaborate cross-functionally with product, data science, and data platform teams.
- Ship intelligent features end-to-end from concept through production.
- Build and manage cloud infrastructure and highly performant backend services.
- Optimize production AI/ML deployments, including GPU and TPU systems.
Requirements
- Bachelor of Applied Science in Computer Science or equivalent experience.
- At least 5 years of industry experience.
- Experience building or consuming RESTful and gRPC-based web services.
- Experience building and managing infrastructure in a cloud environment using GCP, AWS, or Azure.
- Familiarity with a popular ML framework such as PyTorch or TensorFlow.
- Experience writing highly performant services in a modern typed language.
- Experience configuring and maintaining CI/CD pipelines and automated testing.
- Experience shipping intelligent features end-to-end from idea to production is desired.
- Experience designing or implementing pipelines from data ingestion through model training is desired.
- Experience with production AI/ML systems and services, including GPU/TPU deployment optimization, is desired.
- Experience with vector databases or other feature storage is desired.
Tech Stack
Categories
About Character.AI
Character.AI builds a consumer platform for creating and conversing with customizable AI characters on the web and mobile. The company monetizes through a paid c.ai+ subscription and in-app purchases, and reports over 20 million monthly users engaging with user- and creator-built bots. Founded in 2021 by former Google AI leaders and headquartered in Redwood City, CA, it is privately held.