Member of Technical Staff (Applied AI)
Aptura · London
Infrastructureonsite
At a glance
Highlights
- Build RL environments that train AI agents for finance, healthcare, legal.
- Create ground-truth tasks and rubrics frontier labs measure models against.
- Prototype new evaluation, verification, and synthetic data approaches.
Ideal candidate
High-agency builder who ships end-to-end and thrives in ambiguity across engineering and expert collaboration. You care about making AI reliable where mistakes are expensive and want ownership at a lean startup.
Requirements
- Practical experience building with LLMs including prompting, evaluation, and agentic harnesses
- High agency and technically sharp, able to act without detailed specs or roadmap
- Comfortable working across engineering, evaluation design, and domain-expert collaboration
- Bias to ship, iterate, and own problems end-to-end from scoping to working environment
- Already using LLMs as part of how you build
Lab profile
About Aptura
Builds evaluation datasets and RL environments to make AI reliable in finance, healthcare, and legal.
What they build
- Evaluation datasets for regulated domains
- RL environments for high-stakes tasks
- Expert-curated training data and calibrated rubrics
Known for
- Research partner to Anthropic, OpenAI, Google DeepMind
- Specialization in finance, healthcare, and legal
- Clinician expert network for medical oversight
Key facts
- Based in London
- Small, lean team
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