I build mobile money products that people trust with their savings.

01 / The context

A savings app for everyone — including a $0.05 deposit

Chumz lets people save toward personal or group goals through mobile money. That means our real users are on every kind of Android device, on every kind of network. Designing for the newest iPhone would be designing for almost nobody.

When I joined in January 2023 the product had traction — about 30,000 users — and a long list of rough edges standing between it and the next order of magnitude.

02 / My role

Owning the mobile experience end-to-end

I develop, design and prototype the mobile interfaces — and work with our lead engineer oncode reviews, roadmaps and feature prioritisation. I also mentor every junior and intern who joins, through pair and mob programming.

Remodelling core user flows was the heart of it: redesigning, reassembling and reintegrating the journeys people take most, and resolving critical bugs before users could feel them.

→ Add here: one flow you're proudest of, with a before/after screen pair or a 30-second recording.

03 / The unglamorous win

A dashboard that gave the support team superpowers

Growth creates tickets. I designed and built a tailored customer-success dashboard that pulled a scattered, multi-tool process into one screen — so the team could see, triage and resolve issues dramatically faster.

Internal tools rarely make portfolios. They should: they're where you learn to build for users who sit three desks away and tell you exactly what's wrong.

→ Add here: rough numbers — tickets/week handled, or resolution time before vs after.

04 / The result

16.7× growth, and features that move real money

The product grew from 30,000 users to over 500,000 during my tenure, and features I shipped contributed to a significant increase in assets under management — people saving more, more often.

→ Add here: a testimonial from your lead engineer or founder — one sentence is enough.