Member of Technical Staff — AI Training & Sandbox Systems

Dex is partnering with a frontier AI lab in London and Paris seeking a Member of Technical Staff to own post‑training and harness loops. You will work between research and systems engineering, shaping bets, tuning models, and building the sandboxed execution harnesses for agent testing against complex tasks.

Responsibilities span SFT, RL, and RLHF, with emphasis on production-grade Python, scalable data pipelines, and rigorous evaluation.

#J-18808-Ljbffr…