Senior Product Engineer (up to £140k)

Dex; Greater London; On-site; GBP 90,000 - 140,000; Full time

Job summary

Dex is rebuilding property investment platforms in London, embedding AI across engineering and product. As a full-stack engineer, you will own features end-to-end, spanning frontend React/Remix with TypeScript and a Golang backend. You will shape problems with product and design, using AI as leverage to scale an AI-native engineering practice.

This role suits builders who embrace ambiguity and ownership. You’ll work in a cross-functional team, moving ideas from concept to deployment, testing

Qualifications

• Proven experience as a full-stack engineer on user-facing products.
• Ability to frame business problems and think in trade-offs, not just technical solutions.
• Demonstrable experience using AI tools in development workflows, with understanding of prompting and reasoning.
• Track record of mentoring engineers and contributing to team growth.
• Strong testing habits: unit, integration, and end-to-end automation.

Responsibilities

• Take full ownership of features from concept to deployment.
• Work across a modern full-stack: React, Remix, TypeScript on frontend; Golang on backend.
• Shape product direction with product and design.
• Integrate AI tools into daily development workflow for genuine leverage.
• Contribute to defining and scaling an AI-native engineering practice.

Skills

Full-stack engineering

Problem framing

AI in development

Mentoring

Testing (unit/integration/E2E)

Tools

React

Remix

TypeScript

Golang

Job description

The role

This company is rebuilding property investment for landlords, end-to-end. Think company formation, accounting, mortgages, and property management, all integrated into one platform. They treat AI as a first-class citizen in engineering, not just in what they ship, but how code gets written and systems are reasoned about. They're backed by leading investors and manage significant assets for tens of thousands of users.

You’ll join a cross-functional product team in London. This isn’t just about implementing specs; you’ll shape the problems solved, not just how they’re built. Expect real ownership, moving ideas from concept to deployment. You’ll use AI tools as genuine leverage, helping define what an AI-native engineering practice looks like as the team scales. This role is for a builder who thrives on ambiguity, not just a ticket-taker.

The work

• Take full ownership of features, from concept to deployment, impacting a platform managing significant assets.
• Work across a modern full-stack: React, Remix, TypeScript on the frontend; Golang on the backend.
• Shape product direction, defining problems and solutions alongside product and design.
• Integrate AI tools into your daily development workflow, moving beyond basic autocomplete to genuine leverage.
• Contribute to defining and scaling an AI-native engineering practice.

What You Bring

• Proven experience as a full-stack engineer on user-facing products, comfortable across frontend and backend.
• Ability to frame business problems and think in trade-offs, not just technical solutions.
• Demonstrable experience using AI tools in your development workflow, with a clear understanding of prompting and reasoning.
• A track record of mentoring engineers and contributing to team growth.
• Strong testing habits: unit, integration, and end-to-end automation.