Cometh
Lead Product Designer; nov. 2022 - june 2025
Switching between B2B internal products to B2C clients projects, I accomplished 25+ Web3 projects including Partouche, Crédit Agricole, Alpine, FDJ, Telos, Worldcoin, Aave and many more.
Ethereum
defi
onboarding
account-abstraction
NFTs
> Onboard thousands of users by transforming complex concepts into seamless workflow
> Deep knowledge on how Ethereum works (transactions flow, ERCs)
> UX stories on complex paradigms, such as account-abstraction. Managing every states such as waiting or blocked txs.
> Chain abstraction has my favorite puzzle
I had the great pleasure of working with Arthur for several years, and I can only highlight his outstanding expertise in UX/UI design. He has a rare talent for combining aesthetics, usability, and performance. He knows how to turn complex problems into intuitive, user-centered interfaces while respecting technical constraints and deadlines. This is especially valuable when dealing with blockchain-related topics.
Jerome de Tychey
Founder CEO @Cometh
President @Ethereum-France (ETHCC)
Spendesk
Lead Product Designer @banking; oct.2020 - dec.2022
Faced with delays in resolving user compliance issues (e.g., blocked payment cards), lengthy client acceptance processes (KYB), and high costs from banking providers, Spendesk decided to rebuild the full banking architecture in order to gain end-to-end control and greater agility.
Within an elite squad of 12 people, I led the entire design process by creating a complementary product to the existing management platform. Primarily backend-focused for operational teams, the project had a strong UX dimension, aiming to streamline client onboarding and drastically reduce delays for end users.
tradfi
dashboard
backend
> Complex dashboards with 12+ sections and hundreds of pages
> Design Systems with reusable components
> Deep researches on compliance (competitors, KYC & KYB process, user interviews)
Crypto Enthousiast
From attending major events like EthCC to actively engaging in daily Discord communities and following the market closely. This long-term involvement has given me a solid understanding of the sector, with a strong focus on making it more accessible for new users.
Thanks to my financial education, I have always viewed blockchain as a fair and transparent way to distribute wealth, free from inflation and monetary manipulation. I strongly advocate for privacy and limited regulation, with decentralization as the core principle.
> Started by mining Ethereum (PoW)
> Transactions several times a week on many chains & apps
> Participate in many conferences like EthCC in France & Belgium, Party hard @Aave
Available for work
With 40+ companies already supported through my freelancing journey, I thrive on turning opportunities into success. Today, I’m open to both freelancing missions and full-time roles — and I’d love to hear about your vision!
