Designing products people use.

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  • Seeble
Lab

When an idea won't leave me alone, I build it.

Outside client work, I design and build small products: for a trip, for my neighbourhood, for my Mac. It's where I try the tools and techniques I then bring to teams.

Roadbook, web and ios app

Roadbook

Web and iOS app, summer 2026

The roadbook of a trip with friends: the map of the stops, the day-by-day itinerary, lodgings, weather and shared expenses, synced live between travellers. It started for one trip and became an app to create others: AI drafts the trip from a few lines, you adjust it by talking to it, and a native iOS version followed.

  • React
  • SwiftUI
  • MapKit
  • Supabase
  • IA
Stamp, web app

Stamp

Web app, spring 2026

The neighbourhood shop's loyalty card, without the cardboard: customers scan the QR code or NFC tag on the counter, the shop confirms the stamp, and the reward unlocks once the card is full. On the shop's side, today's dashboard, customer records, full cards to follow up and targeted notifications.

  • Next.js
  • Drizzle
  • Postgres
  • Web Push
Claude Notch, macos app

Claude Notch

macOS app, july 2026

Born from my daily use of AI: the Mac's notch becomes Claude's dashboard. The mascot shows at a glance whether it's working, waiting for my go-ahead or done, I approve its requests from the notch or the keyboard, and I can see where my session stands. Nothing leaves the Mac.

  • Swift
  • macOS
Notch Bar, macos app

Notch Bar

macOS app, winter 2026

The MacBook notch turned into a Dynamic Island: the music playing with its cover, a progress bar tinted with its colour, the controls, and a camera preview before a call. An exercise in interface detail, down to the pixel and the animation.

  • SwiftUI
  • macOS
Vif, macos utility

Vif

macOS utility, july 2026

MacBook Pro screens can go much brighter, but macOS keeps that for HDR content. Vif unlocks it from the menu bar, steadily and without flicker, and shows the brightness reached in nits.

  • Swift
  • Metal
Finger Roulette, mobile game

Finger Roulette

Mobile game, january 2026

A party game: everyone puts a finger on the screen, a five-second countdown builds the tension (pulsing screen, haptics), then one finger is drawn and buys the next round. Illustrated hands slide away as players join.

  • React Native
  • Expo
RunR, ios app concept

RunR

iOS app concept, december 2025

Running to conquer your city: loop around a neighbourhood to take control of it, steal other runners' zones, and every zone has its own podium. A concept designed end to end, from the map of zones to live run tracking.

  • Figma
  • Figma Make
Wizz, web app

Wizz

Web app, february 2026

What if ChatGPT had MSN’s interface? Wizz plays on nostalgia and the chatbot wave: you chat with fake AI friends, each with its own personality, mostly the trolling kind, who answer with the slang of 2006 and can’t stand being sent a wizz. Contact list and personal messages included.

  • JavaScript
  • Web Components
  • Ollama

Who I am

Experience
  1. Product Designer & Product Builder

    2025 – Present175studioParis

    My freelance missions, through 175studio: product design, design systems and custom web and mobile app development, for Exoteach, Mango3D, Poupette and Fuko. Still working alongside Artur'in's product team: mobile app, Self'in, internal tools.

  2. Lead Product Designer

    2018 – 2025Artur'inParis

    Led UX/UI design of web and mobile interfaces (CRM, CMS) in a multi-sector B2B context. Three successive design systems, in step with the technical migrations (Angular, Vue, then React with shadcn), and a team of five designers to lead. User research, prototyping, A/B testing and Design Thinking workshops.

  3. UI/UX Designer

    2012 – 2018FeeligoParis

    Company's visual identity and website, UX/UI for the client back office, the Sticker Picker mobile app and internal tools. UX for Messenger chatbots, Facebook conversational extensions and custom interfaces for platform clients.

  4. Webdesigner — Freelance

    2010 – 2012FreelanceParis

    Website design and conception for a range of clients — independents, small businesses and early-stage structures. Art direction, layout and integration, with a strong focus on visual identity and usability.

  5. Graphic Designer

    2008 – 2010SignaramaVersailles

    Graphic design, signage and visual communication materials.

  6. Junior Layout Designer

    2007 – 2008FullsixLevallois-Perret

    My first job, and the agency's youngest employee. Graphic design and animations for SFR, Canal+ and other big accounts. Another era, with no Figma and no cloud: most of the files got lost along the way.

They worked with me

Clients and product teams,
in their own words.

Working with Romain is a guarantee of quality. He understands both the business and the technical stakes, and can unblock complex UX problems.
Juliette Mauduit
Juliette Mauduit
Head of Product · Artur'in
Romain translated Poupette's universe into digital without ever betraying the brand. Sharp eye, quick execution, and real product sense.
Rodolphe Gougaud
Rodolphe Gougaud
Co-founder · Poupette
7 years of collaboration, from SkipTax to Exoteach. Romain turns complex problems into clear interfaces that convert.
Alexandre Lunati
Alexandre Lunati
Founder · Exoteach & SkipTax
Romain set up a solid design system in record time, and his prototypes were complete enough that we used them directly in-house.
Anthony Teixeira
Anthony Teixeira
CPO · Mango3D
Get in touch

Let's talk.

A product to scope, a rebuild, an exploration sprint, or just want to chat about product — drop me a line. I reply within 24h on weekdays and am always up for a no-strings first call.