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Polymath

Member of Technical Staff - Engineering

San Francisco, California, United States

Location
San Francisco, California, United States
Work
On-site
Employment
Full-time
Level
Lead / staff
Function
Engineering
Pay
$150K – $300K a year
Posted
6 months ago

Pay and the market here

The top of this role’s range, $300K a year, is about the median of $292K for lead / staff engineering jobs in San Francisco (middle half $250K – $350K, 914 jobs that state pay).

5,003 engineering jobs open in San Francisco: 9% remote, 949 posted in the last 30 days.

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About the role

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.

Source

Posted by Polymath on their own hiring page, jobs.ashbyhq.com. OptiTalent shows it as published, read 07 Nov 2026 12:19 UTC; the original is the reference.

View the original ad ↗

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