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Member of Technical Staff, Environment Generation

Fleet· Engineering
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San Francisco, CA / New York, NY$200k - $600kFull-timePosted 7mo ago

About the role

Engineer to build code generation pipelines that produce high quality, high fidelity RL environments at scale. Focus on scalable agentic systems, long-running reliability, and rigorous quality in generated environments for AI training and evaluation.

Responsibilities

  • - Building and scaling agentic systems that generate large, complex software with minimal human input
  • - Making those systems reliable over long running work, and debugging them when they aren't
  • - Holding a very high bar for quality and correctness in everything they produce
  • - Prototyping and evaluating new approaches to problems nobody has solved yet

Qualifications

  • - Prior experience with code generation and agent harnesses
  • - You've worked on coding agents that do long, complex work reliably
  • - You understand coding agent failure modes very well
  • - You are comfortable working on nebulous problems
  • - You care a lot about quality and know how your work can break
  • - Bonus: Experience across the end to end SDLC; You've built automated systems that judge the quality of complex software and exhaustively find bugs

Skills

Required:code generationagent harnesseslong-running system reliability
Last updated Oct 15, 2026. Interested? Apply on the company site.

About Fleet

Fleet - AI-powered workflows

Fleet creates simulated worlds and real-world challenges to better understand and shape the behavior of artificial intelligences.

AI-powered workflowsbessemer-ai-infrastructure-2026reinforcement-learning-platforms
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