A front-end designer who actually ships the code
Most designers stop at the mockup and most developers start from one. William Mattey is a front-end designer who does both — designing the UX and UI, then writing the production front-end code in Next.js, React and TypeScript. One person across the design-to-engineering line where quality usually leaks.

The designer-developer gap, closed
The handoff from design to front-end is where most products lose fidelity. Spacing drifts, interactions get simplified, states get dropped, and the shipped screen ends up a rougher version of the design. A front-end designer removes that gap by owning both sides.
William Mattey works as a front-end designer and designer developer: the same person designs the interface and implements it, so what ships is what was intended. Searches like front-end designer, designer developer, or full stack web designer usually come from teams tired of that translation loss.

A product designed and built end to end, with front-end faithful to the design intent.
Design decisions that are already build-aware
When a designer also writes front-end, the design gets better, not just the build. Choices are made knowing what is cheap, what is expensive, what performs, and what will actually feel right in the browser rather than only in Figma.
That means fewer impossible mockups, fewer engineering renegotiations, and a front-end that is faithful to the design because the designer built it.

Interface design and front-end implementation working as one across a feature-rich product.
Modern front-end, production-grade
This is not designer-who-dabbles-in-code. William ships production front-end in Next.js, React, and TypeScript, with real attention to performance, responsiveness, and interaction quality.
For teams that want design and front-end to move as one, a front-end designer collapses two roles into a single, coherent hire.

Design and front-end combined on a trust-critical payments experience.
Proof tied to this expertise

Findaly
A product designed and built end to end, with front-end faithful to the design intent.

Kompi
Interface design and front-end implementation working as one across a feature-rich product.

KompiPay
Design and front-end combined on a trust-critical payments experience.
Common questions
What is a front-end designer?
A front-end designer designs the interface and writes the production front-end code. William Mattey handles UX and UI plus implementation in Next.js, React and TypeScript, closing the gap between design and engineering.
Do you write production code or just prototypes?
Production code. William ships real front-end in Next.js, React and TypeScript, with attention to performance, responsiveness and interaction quality — not throwaway prototypes.
Why hire a front-end designer instead of a designer and a developer?
It removes the design-to-front-end handoff where fidelity is usually lost, keeps design decisions build-aware, and collapses two roles into one coherent hire.
Need help with front-end designer?
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.