Staff Product Engineer — Scale AI for Public Services (Hybrid)

Dex; Greater London; Hybrid; GBP 120,000 - 180,000; Full time

Benefits offered by this job

Hybrid work model

Job summary

Dex is partnering with a team that powers real-time AI for public services. We are seeking a Staff Product Engineer to set technical direction, design scalable distributed systems, and ship production code multiple times a day.

You will lead architectural decisions across backend, frontend, and data, while grounding work in user problems and achieving rapid release velocity with security at the forefront.

Qualifications

• Experience leading staff-level engineering for architectural breadth across backend, frontend, infrastructure, and data.
• Proven track record evolving production systems under heavy usage with modern stacks.
• Strong product instincts and ability to tie features to user value.
• Hands-on or deep interest in applying LLMs within workflows and internal tooling.

Responsibilities

• Set overarching technical direction and architecture for the department to scale to millions of interactions.
• Ship continuously to 100,000+ daily frontline users with high stability and security.
• Evolve a modern stack based on Ruby on Rails, TypeScript, PostgreSQL, and React on GCP.
• Drive AI integration across real-time voice, interpretation, and text-generation products.
• Coach and mentor senior engineers, raising engineering standards and design quality.

Skills

Technical leadership

Staff level experience

Product sense

AI curiosity

Collaboration

Tools

Ruby on Rails

TypeScript

React

PostgreSQL

GCP

Job description

Dex is partnering with a team that powers real-time AI for public services. We are seeking a Staff Product Engineer to set technical direction, design scalable distributed systems, and ship production code multiple times a day.

You will lead architectural decisions across backend, frontend, and data, while grounding work in user problems and achieving rapid release velocity with security at the forefront.