A UK-based product designer for founders who want senior work in their timezone
William Mattey is a UK-based product designer working with startups, fintech and SaaS teams across the UK and beyond. Senior product strategy, UX, UI and front-end build from one person — in your timezone, with the directness that remote-friendly founders actually want.

Why the UK base matters more than you'd think
For UK and European founders, timezone and communication style are not small things. A UK-based product designer means overlapping working hours, faster feedback loops, and fewer of the async delays that slow product work down when design sits on the other side of the world.
William Mattey works with UK startups, fintech teams and SaaS companies as a senior product designer, and remotely with founders elsewhere. Searches like product designer UK, UK product designers, or product design consultancy UK usually come from teams who want that combination of seniority and directness.

Trust-critical fintech product design and build for a UK-relevant payments product.
Senior product design, not just extra capacity
The value is judgement, not headcount. William is usually brought in when a UK team needs stronger product thinking, cleaner UX, more premium interfaces, and design that is commercially useful rather than decorative.
That covers product strategy, UX, UI, design systems, and — because he also builds — the front-end code to ship it. It is a full product capability from one UK-based hire.

End-to-end product design across strategy, architecture and premium interface work.
Built for UK startups, fintech and SaaS
The strongest fit is products with real complexity: fintech flows, SaaS dashboards, marketplaces, and early-stage products that need clearer structure. British product designers who can also build are rare, and that combination is where William is most useful.
The outcome founders care about: a sharper, more credible product, built by someone in their timezone who owns the work from strategy to shipped screen.

Mobile-first product design and feature structure for a fast-moving startup product.
Proof tied to this expertise

KompiPay
Trust-critical fintech product design and build for a UK-relevant payments product.

Findaly
End-to-end product design across strategy, architecture and premium interface work.

Jimbo
Mobile-first product design and feature structure for a fast-moving startup product.
Common questions
Are you a UK-based product designer?
Yes. William Mattey is a UK-based product designer working with startups, fintech and SaaS teams across the UK, and remotely with founders elsewhere.
Do you work with companies outside the UK?
Yes. William works remotely with international founders, while offering UK and European teams the advantage of an overlapping timezone and direct communication.
What makes a UK product designer worth hiring over a cheaper option?
The combination of senior product judgement and full-stack build. William designs and ships products end to end, so UK teams get strategy, UX, UI and working front-end from one hire rather than coordinating several.
Need help with product designer uk?
If you are building a digital product and want sharper structure, stronger UX and more convincing interfaces, head to contact and tell me what you are working on.