Polymath Labs
Member of Technical Staff - Engineering
$150K–$300K
San Francisco · On-site · Staff · Full-time · Posted Apr 14, 2026
About the job
Build engineering systems for reinforcement-learning and contributor platforms, working across engineering, research, and product.
What you'll do
- Develop platforms for contributors to create RL environments.
- Design QA agents to ensure data quality.
- Build tooling to improve environment and task creation processes.
What they ask for
- Strong engineering fundamentals and prolific use of AI tools.
- Experience with full-stack product development.
- Experience with infrastructure, containerization, networking, and distributed systems.
- Interest in reinforcement learning environments.
Pay
$150K – $300K • Offers Equity
Tools
AI tools
AI focus
Build systems supporting reinforcement-learning environments and design QA agents; the role calls for prolific use of AI tools.
Model-written summary · the original posting is authoritative