Member of Technical Staff - Platform Engineering

About Halluminate

Data and RL environments to automate knowledge work

The role

## About HalluminateHalluminate 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, 5 days in officeOwn 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.