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Halluminate

Data research lab creating RL benchmarks

Member of Technical Staff - Research / Post-Training

AI ResearchConfirmed live in the last 24 hours
Full-timeSan Francisco, CA, USA$250k - $320k /yrIn-person

About the Job

Requirements

  • Experience in model post-training.
  • Experience publishing papers and sharing open research.
  • Familiarity with building evaluations, benchmarks, or reinforcement learning for AI agents.
  • Strong product and user ownership.
  • Comfort with client-facing work, including talking to users, customers, and subject-matter experts.

Responsibilities

  • Train open-source frontier models on in-house environments to validate quality and build research insights.
  • Lead 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, including AI tooling and data collection pipelines, and partner with environment and reward designers.
  • Build the engineering team culture from the ground up.

Desired Qualifications

  • Former founder experience or experience at early-stage startups.

About the Company

Halluminate

Data research lab creating RL benchmarks

Halluminate builds benchmarks and reinforcement learning environments to advance AI for knowledge work. It creates computer-use and tool-use environments that train frontier AI models on real finance and consulting tasks, such as investment banking, private equity, and consulting work. A flagship benchmark, Westworld Finance Diligence Bench, contains 88 problems that simulate a complete company acquisition due-diligence process, with content written and reviewed by practicing deal professionals. The company differentiates itself by delivering domain-specific, practitioner-authored tasks and end-to-end workflows across financial services and consulting, and by expanding into adjacent verticals through data-driven RL environments. Its goal is to raise AI performance on real-world knowledge-work tasks and broaden benchmarks to cover more industries, supported by a 2026 Series A funding round led by Oak HC/FT and investors like Y Combinator.

Company size
51-200
Company stage
Series A
Total funding
$30.1M
Headquarters
San Francisco, CA
Founded
2024

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