Aptura AI | Full-Time | MTS (Applied AI), MTS (SWE / Product) | London | ONSITE / HYBRID

We build the evaluation datasets and RL environments that make AI reliable where mistakes are expensive: finance, healthcare, and legal. We design expert-curated training data, calibrated rubrics, and RL environments for frontier AI labs and startups pushing the frontier of what models can do. We're a small London-based team running multiple active projects, so what you ship gets used immediately by labs, startups and internal domain experts. We recently launched SpreadsheetBench v2 and work on ultra long-horizon tasks. We're hiring: * MTS, Applied AI — design the next benchmarks and RL environments — https://jobs.ashbyhq.com/aptura/c299e1f2-cdb4-4842-b5f3-8aa6e57482e0 * MTS, SWE / Product — build the platform behind every dataset — https://jobs.ashbyhq.com/aptura/cd6b6df2-1a75-442e-83b3-2ae03c907f0c