Lagos, Nigeria — @othreecodes

Obi Uchenna
David

I build things because I can't not build things.

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The story so far.

My journey started writing my first lines of code at IITA, and it led me through the trenches of Cellcore, Vasiti, Tuteria, and Murcul. Today, I'm the AVP of Engineering at Cowrywise, helping build the financial infrastructure for millions.

But my work isn't just about servers and code. I've taught Scratch and Python to 8-year-olds as the CTO of knowIT NGO, and organized weekly programming tutorials as President of the Braintemple Association. I speak at places like CX Con and ForLoop because I believe knowledge is meant to be shared. And when the screens turn off, I write poetry.

In January 2026, I was promoted alongside ten other incredible leaders at Cowrywise. I saw 11 chairs line up at the front of the room and thought we were about to play dancing chairs. When the announcements started, it didn't feel like "I made it." It felt like responsibility catching up to effort.

"We are Cathedral Builders—people who think in systems, care about continuity, and understand that what they are shaping must outlast them."
002 — Experience

Where I've been.

AVP of Engineering Current
Cowrywise

Part of the "Cathedral Builders." Leading engineering strategy, shaping systems that outlast us, and securing the financial future of our users.

Software Engineer
Murcul

Shipped full-stack features that bridged the gap between complex platforms and user-friendly products.

Software Engineer
Tuteria

Architected and built the Quiz Microservice from the ground up to handle scalable, isolated assessments.

Developer
Vasiti

Wrote the core code that powered a competitive e-commerce marketplace for university students.

Developer
Cellcore Nigeria

Cut my teeth on mobile and enterprise systems, learning how to build software for the real world.

Developer
IITA

The genesis. Where I first learned how to turn logic into living, breathing applications.

003 — Expertise

What I love doing.

Building Backends

PythonDjangoNode.jsNestJSGo

Orchestrating the Cloud

AWSVPCECSLambdaDockerCloudFrontRoute 53

Securing the Vault

WAFSIEMOpenSearchNeptuneIncident ResponseFraud Detection

Thinking in Systems

MicroservicesSNS/SQSEvent-DrivenGraph DBsReal-time Pipelines

Shipping Reliably

GitHub ActionsGitLab CIDockerSESCloudFormation

Exploring the Future

LLM AgentsEmbeddingsRAG PipelinesFraud MLTime-Series Models
004 — Projects

Things I've brought to life.

01

The Cowrywise App

A free digital personal finance app that helps people automate their regular savings and investments easily while earning competitive returns.

02

Cowrywise Roundup

Conceptualized and built our year-end financial summary feature—think Spotify Wrapped, but for your money and savings habits.

03

Compare The Markets

A Nigerian platform I built to help everyday people compare the retail prices of market products across different vendors.

04

PUSH-IT

A robust, cross-platform notification system engineered specifically for mobile devices.

05

knowIT NGO

Served as CTO and taught Scratch and Python to kids aged 8-13, proving that you're never too young to start building.

06

NatGrid Monitor

A real-time dashboard tracking Nigeria's national power grid — because understanding your country's infrastructure starts with visibility.

GitHub →
07

QuickSend

A desktop app that blasts templated emails with your CV to prospective employers. Built in Java, 28 stars — apparently a lot of people needed this.

GitHub →
08

PyCon NG Avatar Generator

Built the branded avatar generator for PyCon Nigeria 2017. Upload a photo, get a conference-branded profile pic. Simple, fun, and used by hundreds of attendees.

GitHub →
09

Interswitch Python SDK

An unofficial Python SDK for Interswitch's payment gateway — because Nigeria's biggest payment processor deserved a proper Python client.

GitHub →
005 — Contact

Say hello.

Whether you want to chat about engineering leadership, systems architecture, or share a good poem, I'm always open to a real conversation.

contact@davidmadethis.com
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