Full Stack Engineer (Product) (up to £130k)

Company: Dex
Apply for the Full Stack Engineer (Product) (up to £130k)
Location: London
Job Description:

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

This platform helps charities and community organisations manage critical operations like safeguarding, grant applications, and reporting. They then layer AI on top to help these organisations measure impact and secure more funding. It’s a complex, mission-driven technical challenge, and the company has built significant traction, backed by leading investors with multi-year runway. You’ll join a lean engineering team, taking ownership across the entire product surface – from new case management tools to a US expansion of their grant-making product. This isn’t a role with a handed-down roadmap or a dedicated PM; you’ll shape features from concept to production, making architectural decisions and supporting what you build. Expect high autonomy, not rigid process.

The work

  • Architecting and building new features across the full stack, from front-end interfaces to back-end services, using TypeScript.
  • Shaping the technical direction for a rapidly expanding product surface, including new modules for fundraising and international markets.
  • Developing robust tooling to streamline the migration of new organisations onto the platform.
  • Owning features end-to-end: from initial idea and technical design through to deployment and ongoing support.
  • Collaborating directly with customer success to diagnose and resolve complex issues, ensuring platform stability and user satisfaction.

What You Bring

  • Broad engineering exposure across frontend, backend, and infrastructure; you solve problems without needing explicit instructions.
  • Daily comfort with TypeScript and practical experience with Elasticsearch.
  • A demonstrable passion for coding beyond work, evidenced by personal projects or open-source contributions.
  • Proficiency in leveraging AI coding tools to accelerate development while maintaining code quality and understanding.
  • A track record of shipping features from concept to production and taking full accountability for their success and maintenance.

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Posted: October 1st, 2026