Member of Technical Staff (Applied AI)
Aptura, London
The role
As a Member of Technical Staff on our Applied AI team, you will build the tasks and environments that AI labs use to train and evaluate their agents in finance, healthcare, and legal.
Day to day, that looks like: constructing RL environments around spreadsheets, documents, and professional workflows. Writing verification logic and reward functions. Working with domain experts to scope what a correct answer actually looks like in an LBO model or a clinical note. Some days it's engineering, some days it's closer to research. The common thread is that you're producing the ground truth that frontier models get measured against.
What you will do
- Build RL environments across finance, healthcare, and legal domains
- Assist in designing tasks with golden answers, calibrated rubrics, and programmatic reward signals
- Write verification logic and reward functions that can distinguish good model outputs from bad ones
- Work directly with domain experts (investment analysts, physicians, attorneys) to translate complex professional workflows into structured tasks