CareerPlan

Member of Technical Staff (Applied AI)

LondonFull-time2026-07-06 → 2026-11-12

Core

Build RL environments, tasks, and verification logic for training and evaluating frontier AI agents in regulated industries.

Role type

Applied AI engineer (RL environments & evaluation)

Builds

RL environments, task definitions, verification logic, and reward functions for AI agents

Domain

AI safety & evaluation in finance, healthcare, and legal

Deliverable

production ML models

Required skills

LLM prompting, RL environment design, reward function engineering, verification logic, domain expert collaboration, synthetic data generation

Preferred skills

Finance/healthcare/legal domain knowledge, RL training workflows, cloud infrastructure (AWS/GCP), startup experience

Technologies

LLMs, RL frameworks, cloud platforms (AWS, GCP)

Responsibilities

Construct RL environments around professional workflows, write verification logic and reward functions, prototype evaluation approaches, collaborate with domain experts to define ground truth

Seniority

Mid-level, hands-on IC