Founding Member of Technical Staff - Research / Post-Training
Halluminate — Data and RL environments to automate knowledge work
About the role
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: 0.25–0.5% · 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.
What the index says about this role
- First seen by JobLarper — Aug 2, 2026, 5 days ago. Older postings collect hundreds of applicants — a tailored résumé matters more the longer a role has been live.
- Halluminate is hiring actively — 3 open roles indexed.
Derived from the 27,000 roles JobLarper indexes daily from official company boards — not from the job description above.
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