Founding Engineer — Research (up to £150k)

This role is with one of Dex’s trusted partner companies. We work closely with their teams to truly understand their culture, goals, and what they’re looking for, so we can match you with the right opportunity and give you context about the role before you commit to a process.

The role

An applied AI lab is building society-level simulations to help governments and policymakers tackle complex challenges. They are extending the frontier of LLMs and simulations in policy and social sciences, backed by leading investors. This role brings cutting‑edge AI to bear on real-world societal problems, with transparency and auditability built in.

The work

• Design and build novel benchmarks for simulations across diverse policy problems.
• Develop specialized research agents for social and economic policy applications.
• Own the full AI/ML lifecycle: from data pipelines and model selection to inference infrastructure and monitoring.
• Translate research insights into robust, production‑ready systems.
• Ground your work in user needs by participating in customer calls and user research.

What You Bring

• 2‑3 years of experience building ML systems in production (startup, lab, or product team) or applied ML/statistics research.
• Strong Python skills, modern ML tooling proficiency, and experience fine‑tuning models.
• A track record of taking research ideas to working systems, with a clear view on practical application vs. hype.
• Comfort navigating ambiguity and the gap between model capability and user reliability.
• A genuine interest in public‑sector problems and their real‑world impact.

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