Hey, I'm Trev. I make complicated products feel obvious.
Staff Product Designer at Cleo, leading design for the platform other teams build on, including its design system. 13 years across fintech, broadcast and consumer apps.
About
I lead design for the platform other teams build on at Cleo, an AI money assistant used by 7 million people. I joined in 2020, started its design system, Cleonardo, in 2021, and in January became the first designer Cleo has promoted to Staff. The role was new to the company too, so we worked out together what Cleo needed from it.
Before that I was at Tandem Bank, the agency 100 Shapes, working with clients like the BBC and Burberry, and the LEGO Group. I studied graphic design at Ravensbourne.
Most interface problems turn out to be structural, so that's usually where I start. I live in Brookwood, Surrey, with my wife and daughter.
Work
Full portfolio available on request.
How I lead
The first design system I built was at 100 Shapes. We were embedded with ITV's engineers, and I started ITV Craft for their internal tools. I've ended up doing the same everywhere since. At Tandem I looked after the design language and moved the team onto Figma, and at Cleo I started Cleonardo with a component list and a Figma file. It now covers almost every screen in the app.
I managed people for a short time at Cleo, then chose to stay an individual contributor so I can keep designing. Most of my leading happens around the work: weekly office hours for questions, reviews and design system chat, design reviews across the team, mentoring, and building tools that make the right way the quickest. I've also sat on about 200 interview panels, including a number of our heads of department.
I've given talks at Ravensbourne and London Product Design Week, and was on the Design Kaffé podcast this June: 
listen on Spotify (opens in a new tab).
Experience
Ravensbourne
BA (Hons) Graphic Design
Thomas.Matthews
Graphic Designer
LEGO Group
UI/UX Design Consultant
100 Shapes
Senior Product Designer
Tandem Bank
Senior Product Designer
Cleo
Staff Product Designer
Now building
I write a lot more code these days, with AI as the pair. Since 2024 I've built a set of Figma plugins for the team with it, rebuilt Cleonardo's Figma library from the coded components, and built the coded prototypes I used to pitch the next version of Cleo. I also helped build service maps and made a lot of improvements across Cleo's internal tools. Production work goes through engineering review like anything else. There are fewer handoffs, and I find out much sooner whether something works.
Websites for other people
Open Door Performance
A workplace wellbeing consultancy's site, moved off WordPress. I designed, built and host it.
opendoorperformance.co.uk (opens in a new tab)
Brookwood Village
A working concept for the village website, with an editing area for volunteers.
brookwood-concept.vercel.app (opens in a new tab)
Side projects
Eye for Type
Lessons in kerning, leading, measure and rag, then practise to see where your eye was off.
eye-for-type.vercel.app (opens in a new tab)
Time Dissonance
How many hours daylight saving, relativity and the sun have taken from your life.
time-dissonance.vercel.app (opens in a new tab)
Brookwood Hunt
A Christmas trail of posters in village windows, with a live map to find them all.
brookwood-hunt.vercel.app (opens in a new tab)
Get in touch
Happy to walk through any of this on a call.