Company · 11 open roles
Careers at Character.AI
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11 positions at Character.AI
Yield & Monetization Analyst (Contract)
Character.AI·Redwood City, California, United States
Yield & Monetization Analyst (Contract) at Character.AI. Location: Redwood City, California, United States. Role: defining segments, governing floors, analyzing revenue Requirements: 4+ years in yield management/ad operations or monetization analytics; experience with audience/in…
Principal Research Engineer, Post-Training
Character.AI·Redwood City, California, United States
Principal Research Engineer, Post-Training at Character.AI. Location: Redwood City, California, United States. Role: defining roadmap, mentoring engineers, developing models Requirements: PhD or equivalent experience in CS/ML/AI, significant leadership in ML or distributed system…
Technical Program Manager, Model Alignment and Deployment
Character.AI·Redwood City, California, United States
Technical Program Manager, Model Alignment and Deployment at Character.AI. Location: Redwood City, California, United States. Role: Leading programs, Coordinating teams, Evaluating quality Requirements: 5+ years in technical program management or related roles in AI/research envi…
Staff Data Scientist, Monetization
Character.AI·Redwood City or New York
Staff Data Scientist, Monetization at Character.AI. Location: Redwood City or New York. Role: define metrics, lead experiments, drive insights Requirements: 7+ years of data science experience on consumer products; monetization, experimentation, metrics; fast-moving environment; …
Research Engineer, Multimodal
Character.AI·Redwood City, California, United States
Research Engineer, Multimodal at Character.AI. Location: Redwood City, California, United States. Role: Lead fine-tuning, Design architectures, Build data pipelines Requirements: Expert in PyTorch with end-to-end experience in video/image generation, multimodal training, and depl…
Software Engineer, Backend/Applied ML (Safety & Integrity)
Character.AI·Redwood City, California, United States
Software Engineer, Backend/Applied ML (Safety & Integrity) at Character.AI. Location: Redwood City, California, United States. Role: Architect backend, Lead solutions, Apply ML Requirements: 8+ years backend software engineering; strong distributed systems; Python/Go/Java/C++; ML…
Software Engineer, Applied ML (Discovery, Recommendation & Search)
Character.AI·Redwood City, California, United States
Software Engineer, Applied ML (Discovery, Recommendation & Search) at Character.AI. Location: Redwood City, California, United States. Role: design model, build services, optimize pipelines Requirements: 5+ years software/ML engineering; CS degree or equivalent; REST/gRPC; cloud …
Software Engineer, Monetization
Character.AI·Menlo Park or Redwood City
Software Engineer, Monetization at Character.AI. Location: Menlo Park or Redwood City. Role: Build features, Design monetization, Collaborate teams Requirements: Experience with monetization, IAP, or subscription flows; strong frontend skills (Typescript/React); backend experienc…
Research Engineer, AI Safety & Alignment
Character.AI·Menlo Park or Redwood City
Research Engineer, AI Safety & Alignment at Character.AI. Location: Menlo Park or Redwood City. Role: Develop evaluation methodologies, Research model alignment techniques, Conduct adversarial testing Requirements: PhD (or equivalent) in CS/ML or related field; production code ex…
Software Engineer, Backend
Character.AI·San Francisco or Palo Alto
Software Engineer, Backend at Character.AI. Location: San Francisco or Palo Alto. Role: design backend, implement APIs, optimize performance Requirements: 5+ years backend development; proficient in Python/Java/Go; database experience; REST/GraphQL; distributed systems; cloud pla…
Research Engineer, Post-Training (All Industry Levels)
Character.AI·Redwood City or New York City
Research Engineer, Post-Training (All Industry Levels) at Character.AI. Location: Redwood City or New York City. Role: Develop alignment algorithms, Write data pipelines, Identify quality signals Requirements: PhD (or equivalent) required; strong production code experience; GPU e…