Location: London, UK
  Remote: Yes (remote preferred; open to one day a week in central London)
  Willing to relocate: No
  Technologies: TypeScript/React, PHP/Laravel, PostgreSQL, React Native/Expo, product design/UX, AI-assisted development
  Résumé/CV: https://dvy.io
  Email: hn@davidbarker.me
  LinkedIn: https://www.linkedin.com/in/dvyio
  Seeking: Senior Product Engineer with product design ownership (permanent preferred; open to substantial contract work)

I turn unclear product problems into useful, well-designed software. I talk to customers, turn what I learn into product and technical specs, design the workflows and interface, build the system, then help launch, market, and support it. That breadth is my strongest skill: it keeps the customer problem in view throughout.

At Flowstate, I took a workforce-planning SaaS from blank repo to paid pilot in 10 weeks as sole engineer-designer. I currently own product design, backend, mobile apps, Stripe Connect payments, AI-assisted listing tools, and infrastructure for a US trading-card marketplace.

I use and evaluate new AI models and coding workflows to make product development faster, while preserving quality through type safety, tests, CI, review, and product judgement.

I'm looking for a team that uses AI coding tools seriously, values strong product design, and keeps product builders close to customers.