Katsu Wallet Infrastructure
Designing configurable wallet infrastructure for businesses embedding financial products.
SabiProduct Design Manager2024–2026
Desmond Ajimuda
Product Designer
I’m a Product Designer at Leatherback, leading design for global business banking & platform for SMEs, corporates, PSPs and MTOs. Before that, I led design for Katsu’s wallet infrastructure and the SANDs design system at Sabi, and the Merchant Portal at Hydrogen.
I like working through ambiguous problems, understanding how people actually use a product, and turning complex requirements into something that feels straightforward. I also prototype closer to the final product with Claude Code and Cursor, to shorten the distance between Figma and something people can use.
Projects
HydrogenPay Merchant Dashboard
Making payment activity easier to understand and manage on the go.
HydrogenProduct Designer2022–2024
HydrogenPay Invoice
Designing an invoicing experience for businesses that needed a simpler way to get paid.
HydrogenProduct Designer2022–2024
Sabi Market Design System (SANDs)
Building a design system that brought consistency and speed to a growing product ecosystem.
SabiProduct Design Manager2024–2026
Mintyn Budgeting Experience
Redesigning a budgeting experience to take the manual work out of managing money.
MintynProduct Designer (6-month contract)2022
About
I design products where complexity needs to feel simple.
I’ve always been curious about how things work and why some experiences feel effortless while others create friction. That curiosity started at 18, when I began designing professionally as a graphic designer and creative director of my own T-shirt brand, AVERTI COUTURE. Running it taught me to understand people, solve real problems, and design around their needs, long before I knew what UX was.
I became a product designer in 2019, and I’ve been drawn to the point where design meets growth ever since. Today I have 8+ years of experience across fintech, payments, commerce, AI, and enterprise products, from consumer financial products to merchant platforms, payment infrastructure, and design systems. I like building things that solve real problems, then using data and analytics to see whether they worked.
Outside work, I’m a husband, father, design mentor, and lifelong learner. I enjoy music (I make playlists on Spotify), working out, the beach, and exploring new technology.
Experience
- 2026 – PresentLeatherbackProduct DesignerBusiness banking platform, multi-currency accounts, payments, payouts
- 2024 – 2026SabiProduct Design ManagerPlatform, payment infrastructure, design system, Sabi AI
- 2022 – 2024HydrogenSenior Product DesignerMerchant portal, dashboard, web and mobile app, design system
- 2020 – 2022ClaneProduct DesignerB2B payment, merchant solution
- 2019 – 2020NUGITECHProduct DesignerMobile and web interfaces, usability, accessibility
- 2018 – 2019Iroko PartnersUI DesignerMobile app UI, browsing, playback, account flows
Mentoring
Mentoring designers. I mentor designers through ADPList, helping them think through product problems, portfolios, career growth, and the shift from execution to product thinking.
900+ minutes of mentoringADPList
Playlist
Contact
Have a complex product problem? I'd love to talk.