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Member of Technical Staff - Engineering

Polymath · San Francisco

Extracted from the posting

Base
$150,000 – $300,000
Remote
On-site
Funding
Raised >$8M from Base10, Cervin Ventures, Founders Future, Y Combinator, and others

Founding Member of Technical Staff (Engineering) at Polymath, building the systems behind its RL environment and contributor platforms. Projects include contributor tools for creating RL environments, QA agents for data quality, and environment and task creation tooling. Stated requirements include full-stack product development and infrastructure, containerization, and distributed systems experience.

About Polymath

Polymath is an applied research lab focused on advancing long-horizon agent capabilities through reinforcement learning. We design and scale simulation environments where agents learn to operate safely and autonomously. We work with the world’s leading model labs to push the frontier of agent capabilities. We've raised >$8M from Base10, Cervin Ventures, Founders Future, Y Combinator, and other incredible investors & angels.


About the role

We’re hiring a Founding Member of Technical Staff - Engineering to build the systems that power our RL and contributor platforms. You’ll be a member of the founding team and should expect to wear multiple hats. While this role is engineering-leaning, we’re looking for people who are energized by hard technical problems and excited to operate at the intersection between engineering, research, and product. Examples of projects you could work on include:

  • Developing platforms that allow contributors to create RL environments
  • Designing QA agents to ensure data quality
  • Tooling to improve environment and task creation processes


You’ll be a good fit if you:

  • Have strong engineering fundamentals and are a prolific user of AI tools
  • Have experience with full-stack product development
  • Have experience with infrastructure, containerization, networking, and distributed systems
  • Have an interest in reinforcement learning environments


Perks:

  • 🪷 Comprehensive health, dental, and vision insurance
  • 🍽 Free meals with the team
  • 🧘 Free Bay Club membership (right next door to our Embarcadero office!)
  • 🚞 Commuter benefits
  • 🏦 401(k)
  • 🌎 Unlimited PTO
  • 💻 Top of the line tech
  • 🌁 Frequent team activities and outings


Culture:

  • Polymath is a team of researchers, engineers, and operators focused on advancing the frontier of safe, superintelligent AI agents.
  • We have a flat organizational structure. We believe that people do their best work when they’re self-motivated and driven by a desire to learn, contribute to the team’s goals, and advance scientific progress.
  • We’re looking for folks who ship fast, set high standards for themselves, and are great team players. You’ll be a member of our founding team: have fun, learn a lot, and do high-impact work alongside great people.


Compensation: $150K - $300K

Polymath
Polymath
Website

Job details

TypeFull-time
Work ModeOn-site
LevelSenior
Location🇺🇸San Francisco, CA
Salary$150,000 - $300,000
PostedNov 06, 2026
Apply Now

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