Founding Engineer – Front-End (up to £150k)

Company: Dex
Apply for the Founding Engineer – Front-End (up to £150k)
Location: London
Job Description:

The role

Governments make decisions that affect millions. This applied AI lab is building a decision‑intelligence platform to help them get it right. They’re creating society‑level simulations, helping policy teams research evidence, model population responses, and produce auditable, decision‑ready documents. Backed by leading investors, this isn’t about replacing human judgment, but augmenting it with transparency and rigor.

You’ll be the first design engineer, owning the entire front‑end experience. This is a hybrid role: part designer, part front‑end engineer. You’ll work directly with the founders, shaping the product’s visual and interaction language from day one. This isn’t just executing specs; it’s defining them, from Figma prototypes to production‑ready React code. You’ll build the design system, not just use one.

The work

  • Design and prototype user interfaces in Figma, translating complex policy workflows into intuitive experiences.
  • Ship production‑ready front‑end code in React, owning features from concept to deployment.
  • Build and maintain the core design system, ensuring consistency and accelerating team velocity.
  • Collaborate directly with founders, policy advisors, and civil servants to define product direction and user needs.
  • Set the visual and interaction language for the entire platform, influencing product, marketing, and company design.

What You Bring

  • 2–3 years experience building production interfaces, owning both design and front‑end development.
  • Proven ability to ship front‑end code in React.
  • Comfort navigating ambiguity, sparse briefs, and evolving priorities in an early‑stage environment.
  • A genuine interest in solving complex problems within the public sector.

#J-18808-Ljbffr…

Posted: July 11th, 2026