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Active
On-site
San Francisco, California, United States
Posted · 16.07.2026
Ashby (US)

# Member of Technical Staff - Research / Post-Training

Halluminate

ABOUT HALLUMINATE
Halluminate is an applied AI and data company building computer-use and tool-use RL gyms to train AI agents on real financial services work — Excel modeling, pitch decks, and everything investment banking, private equity, and hedge funds rely on. We work with frontier labs, graduated from Y Combinator (S25), and raised a seed round to scale the team.
THE ROLE
Base: $200–275k
• Equity: 0.15–0.30%
• Location: San Francisco, in-person
Lead our in-house research and post-training efforts.
RESPONSIBILITIES
• Train open-source frontier models on our in-house environments to validate quality and build research insights.
• Lead our public-facing benchmark and leaderboard efforts for frontier models.
• Publish findings in blogs and papers to share with the broader research community.
• Contribute to core platform engineering as needed — AI tooling, data collection pipelines, partnering with environment and reward designers.
• Build our engineering team culture from the ground up.
YOU SHOULD HAVE
• Experience in model post-training.
• Experience publishing papers and sharing open research.
• Familiarity building evaluations, benchmarks, or RL for AI agents.
• Startup speed: iterate quick, ask quick, respond quick.
• Strong product and user ownership.
• Client-facing comfort — you'll talk to users, customers, and SMEs.
NICE TO HAVE
• 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.

This job was verified from Ashby (US). Applications are completed on the original source.

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