Product sense × Design craft × AI
Product design engineer. Based in
A slightly tilted silhouette of Toronto's CN Tower appears on hover or keyboard focus.I blend behavioural science, design and AI to create digital products that are useful and usable while delivering on business goals.
Hi, I'm Olumide (Lums), a low-ego, high-impact Product Design Engineer who turns complex problems into clear, useful experiences.
Based in Toronto, Canada, I'm a senior product designer with 6+ years across fintech, SaaS, ecommerce and enterprise software, working on everything from banking and lending to payments, internal tools and design systems. I care about the full product, not isolated screens: how it works for users, how it supports the business, and how well it translates into something engineering can actually ship.
I'm curious by default and collaborative by nature. I ask a lot of questions, challenge assumptions and like working with people who bring different perspectives to the table. These days, AI is also deeply embedded in how I work, from research and ideation to prototyping, design systems and production-ready builds. The goal is pretty simple: understand the problem, make the work better, and get useful things shipped.
UX/UI & interaction design
Clear flows and interfaces across mobile and web
Design systems
Shared tokens, Figma components and coded interfaces
AI product design
AI tools and workflows for product teams
UX research
User interviews, usability testing and product decisions
Product prototyping
Interactive prototypes and AI-assisted builds
UX writing
Product language grounded in brand and design rules
Case Study
Shiga Onchain Banking
Product Design Engineer
As Shiga’s founding designer, I lead product strategy, UX/UI and visual design across ENTA, Pulse and a POS product in development, aligning roadmaps and engineering through delivery. This work helped secure Tether investment, Telegram funding for TON integration and Visa accelerator support.
- Crypto banking
- SaaS
- B2B / B2C
- AI prototyping
Branch International
Senior Product Designer
I designed onboarding, lending, payments and growth experiences across markets. I also strengthened design systems, Figma versioning and engineering handoff, introducing AI workflows for writing, illustration and prototyping.
- Digital lending
- Mobile banking
- Multi-market
- AI workflows
Carbon Finance
Product Designer
I led Carbon Business from concept to launch, coordinating a five-person team on the business banking and lending product. My work also spanned consumer banking on iOS and Android, design systems and a 120+ member beta community that helped cut external research costs by 25%.
- Business banking
- Consumer banking
- Growth
United Bank for Africa
Product Designer
I designed HR automation for 10,000+ employees and contributed to mobile banking, ATM and physical banking kiosk experiences. My work combined research, workflow design, prototyping and testing to simplify services for employees and banking customers.
- Enterprise
- HR tech
- Digital banking
Project engagement
Sabi
Product design
I designed supplier, logistics and driver experiences across web and mobile, connecting ordering and inventory with fulfilment and delivery. Research and prototype testing shaped tools around each role’s work: managing stock, coordinating trips and completing pickups and drop-offs.
- B2B commerce
- Logistics
Words from people I've built with
Lums is not a pixel pusher. He is an AI-native builder with a designer's eye and a PM's brain — and that combination is exactly what product teams need to stay relevant in 2026. He specialises in taking an abstract problem, dissecting it surgically, and creating something better than what you imagined. Beyond the work — he is a generous collaborator, a fun teammate, and someone who makes the people around him better.
Deovrat DwivediDesign Team Lead · BranchFrom being your onboarding buddy to someone who shaped how I think about AI and automation — you inspired a whole new way of approaching problems and possibilities.
DuncanProduct Designer · BranchOne of the fiercest AI champs at work. Impeccable work that made our experience easier. Such a valuable addition to the product team.
AnnmercyUX Researcher · BranchConsistently impressed with his design skills, team leadership, and ability to make complex projects feel effortless. He would be an asset to any organization.
Fortunate NnejiProduct Manager · SabiYour immense contribution towards the delivery of the HR automation platform is a sterling achievement — borne out of your dedication, result-oriented approach, and willingness to go the extra mile to ensure delivery of all envisioned and ad-hoc requirements of the platform.
Tonye BohamHead, HR Group Shared Service · UBAI'm really proud of what the @get_carbon team are delivering and this new design change of the Carbon app is just one of the many new changes that are coming. Our mission is not just to change the way you bank, but change your life by banking with us!
Chijioke DozieChief Executive Officer · CarbonOlumide consistently made well-informed design decisions that were backed strongly by research, data, and design processes, making it difficult for stakeholders to say no. His ability to communicate ideas and solutions in a way that commands attention is remarkable.
Rachael AlukoSenior Product Designer · UBAYou're one of those people who make work feel easy — reliable, thoughtful, and just always on top of things.
EniayoProduct Manager · BranchI love the dedication Olumide puts into his work — how he carries the developer along when making designs, and how he takes responsibility while creating user-centric designs.
Simon JuliusFrontend Engineer · CarbonHis unique wealth of design experience and flexibility made him a valuable asset. He excels at his core — product design — but also contributes beyond scope, taking initiative to mentor junior designers.
Emike OkoyomohProduct Designer · Sabi