Full Stack Software Engineer Reinforcement Learning

AI safety and research company building reliable, interpretable, and steerable AI systems, including the Claude product family and developer platform.

Series F+Recently funded0 current maintainers0 active leadsTeam intelligence

Maintainer signals as of 9/23/2026

San Francisco, United States
About Anthropic

Anthropic PBC develops frontier AI systems and deploys them through Claude products and the Claude Platform, with a stated focus on safety, interpretability, and steerability.

View jobs by Anthropic

Skills

Candidate Availability

Required and preferred rules are kept separate and reflect the wording in the original posting.

About the Role

You will own full-stack platforms for reinforcement-learning environment creation, data collection, evaluation, and training observability. You will build vendor tools, labeling workflows, APIs, dashboards, and scalable code-data pipelines. You will partner with researchers, operations, and vendor management to turn ambiguous needs into reliable products.

Requirements

  • Strong full-stack software engineering skills across databases and frontend systems
  • Proficiency in Python and a modern web stack such as React or TypeScript
  • Experience shipping systems that solve difficult problems
  • Ability to build intuitive interfaces for technical and non-technical users
  • Ability to translate vague requirements into well-scoped work
  • Bachelor’s degree or equivalent education, training, and experience

Responsibilities

  • Build web platforms for RL environment creation, management, validation, and quality review
  • Develop vendor-facing environment-authoring tools
  • Build human data-collection, labeling, quality-assurance, and feedback systems
  • Build evaluation dashboards and observability interfaces
  • Create backend services and APIs for environment, data-collection, and training systems
  • Build scalable code-data generation pipelines
  • Develop vendor and internal-user onboarding automation and documentation tooling
  • Translate requirements from researchers, operations, and vendor management into products

Benefits

  • Optional equity donation matching
  • Generous vacation
  • Parental leave
  • Flexible working hours
Full Stack Software Engineer Reinforcement Learning at Anthropic | JobStash