I overthink,
so your users
don't have to.
Hi, I'm Arthur. I worry about the complicated stuff — emissions data, legal workflows, a mirror in a shopping mall — until it feels simple to the people using it.
I took the scenic route here, through art direction, motion and graphic design, and I loved every detour. These days I'm at SINAI, making climate software friendlier and quietly teaching our design process to work with AI. My mother still thinks I fix computers.
See what I've been up to00 By the numbers (I checked twice)
- Experience 15yrs of designing things. Posters first, then motion, then software. A long, happy detour.
- Retention · Doris 77%+ of shoppers stayed with our in-store AI mirror to the very end. Most people can't finish a conversation with me.
- Time · Doris 5→2min shaved off the same experience. Nobody should stand in front of a mirror that long. Trust me.
- Clarity · Yuca 77.7% of renters finally noticed what their rent included. The rest, I assume, are still scrolling.
- Range 6fields Climate, legal, retail, health, fashion and public sector. I get curious. It's a condition.
- AI-first · SINAI 1st designer at SINAI to make AI part of the everyday craft. Somebody had to go first, so I volunteered. Nervously.
Shipped with
01 Selected work
Each of these came with its own little wall: an old system, a stubborn camera, data nobody could read. I never climbed one alone, so here's what we figured out together.
-
01
2025—now
From emissions data to decisions
Helping sustainability teams turn mountains of emissions data into real decisions, and teaching our design process to work alongside AI. Three stories in one: anomalies, workflows and a lot of polishing.
AI-first design practice, now team-wide Read ↗ -
02
2023—24
An AI mirror that keeps people in front of it
A virtual try-on that left the screen and moved into a real store. We taught it gestures, calmed down the camera, and turned an awkward 40-second wait into something people enjoyed.
77%+ retention · 2.4m → 1.3m focal distance Read ↗ -
03
2024—25
A design system, one person deep
LexDoor's interface and its design system, built from scratch at the same time by one slightly over-caffeinated person. Tokenized, synced with code, on a 7px grid inspired by a very round font.
0 → 1 product & system, built solo Read ↗ -
04
2023
The rent wasn't high. It was unread.
People thought the rent was too high. Really, they just couldn't see everything it included. A little reordering, and suddenly the price made sense.
77.7% listed the full package in testing Read ↗ -
05
2021—22
Making DIA's apps feel at home
Two apps for Supermercado DIA: a delivery app born in Russia that had to learn Portuguese, and a coupons app rebuilt without a single new API.
2.7 → 4.4 Play Store rating · 40% of sales via Pix in week one Read ↗
02 About
“Fifteen years in, I still can't walk past a badly kerned sign without saying something.”
I came to product the long way: web design, video editing, motion, creative direction, graphic design. I wouldn't trade a single detour. They're why I'm curious, a little restless, and quick to try things before I've finished worrying about them.
Social Sciences taught me to listen before I draw. Years of working in English, Portuguese and Spanish taught me to be the gentle voice in a room full of opinions, speaking up for the one person who's never there: the user.
- Now
- Senior Product Designer, SINAI
- Craft
- UX/UI · Research · Design Systems · Service Design
- Languages
- English · Portuguese · Spanish
- Studied
- UX at ESPM · Social Sciences at FESPSP · Graphic Design at Senac
Say hi. I'll try not to overthink my reply.
- Emailarthur.nduran@gmail.com
- WhatsApp+55 11 97676-0604
- LinkedInin/arthurduran