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Kampala, Uganda · builder, operator & AI engineer

I build software that works inside African constraints.

Self-taught developer turned founder and AI/LLM engineer. Fifteen years shipping products across East & West Africa — grocery delivery at scale, civic AI on WhatsApp, ESG analytics, and the businesses built around them.

Jonathan Paul Katumba
$500K+
Capital raised across ventures
13
CTO-founders mentored
4
African markets shipped in
15+
Years building

What I do

A rare builder, operator and development-sector three-in-one.

Build

Full-stack & AI products. Offline-first, mobile-money, WhatsApp-native — built for how Africa actually uses software.

Operate

The founder’s seat. P&L, unit economics, ops and logistics. I built and ran Minute5 as CEO and CTO, scaling grocery delivery across four markets.

Consult

Development-sector delivery. Digital strategy for MSMEs and donors — currently leading a GIZ programme for 100 women-led businesses.

Teach

Mentoring & training. 13 CTO-founders at MEST, facilitator at Refactory, and my own Big Brain workshop.

Selected work

Things I’ve built and shipped.

See all projects

Writing

Notes on building, business and the journey.

Read the blog

Have a problem worth solving?

I take on a small number of build and advisory engagements. Tell me what you’re trying to ship.

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