Hiring.Camp

Founding Member of Technical Staff — RL

Relixir

·

Sep 19, 2026

Salary
$190k – $225k/yr
Location
Mountain View, California
Type
Full-time
Department
IT
Source
Y Combinator

Description

About Naive

Naive is building autonomous companies: agent systems capable of operating real businesses end to end.

We release autonomous company templates and benchmarks, alongside a studio—where users can deploy and operate these systems. Our infrastructure platform, Vetta, powers long-running, high-volume agent workloads.

We’ve raised $28.5M from Nexus Venture Partners, Y Combinator, Zetta Venture Partners, Liquid 2 and leading operators.

The Role

Build real-world agent environments, benchmarks and autonomous company blueprints—and make Vetta the best-performing agent within them. Accordingly, as a founding MTS member, you have the chance to earn significant equity in a fast growing Series A company.

What You’ll Do

  • Turn complex business workflows into reproducible agent environments
  • Design tasks, rewards, evals and benchmarks that measure real outcomes
  • Build production-ready autonomous company blueprints
  • Run experiments, analyze failures and improve agent performance
  • Develop training data and optimization loops from agent trajectories
  • Publish credible benchmarks, technical reports and demos

Must-Haves

  • Strong Python and research-engineering ability
  • Experience building agents, evals or RL environments
  • Deep understanding of tool use, long-horizon tasks and LLM failure modes
  • Ability to design rigorous experiments and ship production systems
  • High agency and comfort working on ambiguous 0→1 problems

Nice-to-Haves

  • RL or post-training experience
  • Browser, coding or computer-use agent experience
  • Experience publishing benchmarks or technical research
  • Familiarity with distributed agent infrastructure

P.S. If you’ve made it to the bottom of this listing and are serious about every point on this role, send Sean a LinkedIn connect with a note.

Skills

Python

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