Member of Technical Staff - Platform Engineering

The Role

Base: $215-275k * Equity: 0.10-0.20% * Location: San Francisco, 5 days in office

Own platform engineering, develop frontier long-horizon RL environments, and help build our engineering org from the ground up.

Responsibilities

• Build our RL environment training and inference infrastructure to support customer usage at scale.
• Research and develop next-generation RL environments - increasingly realistic, long-horizon, and difficult for frontier models.
• Build software that 10-100x's the quality and throughput of RL environment creation.
• Innovate on synthetic data pipelines to create realistic problems.
• Build platform analytics for environment cost, hours, bottlenecks, and SME management.
• Craft domain-specific verifiers (verifiable rewards for decks, Excel modeling, quantitative trading, and beyond).
• Establish engineering culture and practices from the ground up.

You Should Have

• Familiarity building evaluations, benchmarks, or RL for AI agents.
• Startup speed: iterate quick, ask quick, respond quick, make mistakes quick.
• Strong product and user ownership; ability to prioritize across a large roadmap.
• Client-facing comfort - you'll talk to users, customers, and SMEs.

Nice to Have

• Research background (training models, publishing papers).
• Former founders or experience at early-stage startups.

What We Offer

• Healthcare - Fully covered medical, dental, and vision for you. Subsidized for dependents.
• Relocation - $10k+ relocation stipend to help you get to San Francisco.
• 401(k) - Up to 4% employer match.
• Food - Free breakfast, lunch, and dinner while working.
• Health - Free gym membership.
• Transportation - Free Ubers and Waymo rides to and from the office.
• Visa sponsorship - We sponsor visas, including H-1B.