Emmanuel Noel Zappy Yeboah
Yep, a very long name.
The journey started in 2018 with a Udemy course authored by Angela Yu. I got into University of the People in 2020 and earned a CS degree.
What drives me isn't just engineering — it's the fact that good financial infrastructure changes what people can do with their money. When a savings group in Accra can track their contributions in real time, when a small business in Kumasi can accept mobile payments reliably, that's not a technical achievement. That's a real change in someone's life. That's what I'm here to build.
Where I've built.
SusuPaa
Apr 2025 – PresentCo-founder & Lead Backend Engineer
Architecting the backend infrastructure for a multi-tenant fintech platform digitizing traditional susu savings groups across Ghana. Built from first commit to $40k+ in monthly transaction volume with 99.9% transaction reliability.
Fetch Agent (Common Wealth)
Sep 2024 – Dec 2025Senior Backend Engineer
Led backend for a US real estate platform. Scaled APIs to 50,000+ daily requests at sub-200ms response times. Built the proprietary agent-ranking algorithm that improved user-to-agent conversion.
RBL Matchmaking LLC
Apr 2024 – Oct 2025Lead Full-Stack Engineer
Executed a zero-downtime migration of 170,000 users from PHP/MySQL to Node.js and PostgreSQL. Built the WebSocket messaging system now serving 200,000 monthly active users.
Hubtel
Feb 2024 – Oct 2024Software Engineer
Engineered core components of GHQR — Ghana's national interoperable QR payment platform. My first experience building financial infrastructure at national scale.
Built Financial Technologies
Sep 2021 – Oct 2024Lead Mobile Engineer
Scaled a fintech mobile app from 700 to 50,000+ installs. Built offline-first local banking, POS, and automated accounting tools for Ghana's SME market.
Wordnox
Jul 2019 – Aug 2021Frontend Engineer
My first professional role. Where I learned what it means to build software that serves real users — not just passes tests.
How I think about building.
"Ship, Then Polish"
Working software that ships beats perfect software that doesn't. I care deeply about code quality, but I care more about systems that are actually in production serving real users.
"Code is Communication"
The best codebase is the one your team can read, understand, and confidently change six months later. I write for the next engineer, not just the machine.
"Africa First, World Ready"
I build for African markets first — mobile money, low-bandwidth, high-trust constraints. That discipline makes everything I build more robust everywhere.
Other things worth knowing.
Open Source
I build and maintain open source tools including Voltax — a developer productivity library. Available for use and contribution on GitHub.
View open source work →Writing
I write about software architecture, African fintech, and the hard decisions that come with building systems at scale. No fluff.
Read the notes →Based in Accra
I work from Accra, Ghana — and serve clients across Africa and internationally. Remote-first, async-friendly, and timezone-flexible.
Let's work together →