The spire. You made it to the top.

Say hello.

contact@davidmadethis.com

Said out loud.

DevFest Lagos 2026

GDG Lagos, upcoming

AI Agents Need Guardrails: Securing APIs in the Age of Autonomous Systems

API Conf Lagos, Ruby Hall

Jul 2026

CX Con

Cowrywise

2025

Data Privacy & Security

Simplified by Cowrywise

Feb 2021

Software Team Development in Africa

Case studies and challenges

Oct 2021

Systematic Debugging

Speaker Deck

Nov 2021

Making Python Web Apps Faster

Speaker Deck

Deploying Your Django Application

Speaker Deck

ForLoop Ibadan

Speaker and local coordinator

2017

CTO, knowIT NGO

Taught Scratch and Python to kids aged 8 to 13.

President, Braintemple Association

Organized weekly programming tutorials.

Built to be used.

Products millions rely on, public works for Nigeria, and open source anyone can fork.

High altar, at Cowrywise

The Cowrywise App

3M+users

Automated savings and investments for Nigerians, from ₦100 minimums to stocks across 140 listed companies.

Cowrywise Roundup

Decevery year

Conceptualized and built our year-end money summary: Spotify Wrapped, for your savings habits.

Public works, for Nigeria

Civic, open source NatGrid Monitor Real-time dashboard of Nigeria’s national power grid. Visibility before opinions. Source on GitHub
Civic Compare The Markets Compare retail market prices across Nigerian vendors, so everyday people stop overpaying.
Infra PUSH-IT A cross-platform notification system engineered for mobile.

Open source, by stars

159 stars and 52 forks across 6 repos
MY-RIDEDjango and JS Carpooling and ride-sharing app built with Django and Bootstrap. ★ 68⑂ 34 APXJava A JavaFX library for building MVC desktop applications. ★ 46⑂ 7 QuickSendJava Mails templated applications with your CV to many companies at once. ★ 27⑂ 7 PyCon NG AvatarsPython Branded avatar generator for PyCon Nigeria 2017, used by hundreds of attendees. ★ 12⑂ 3 CURRICULATypeScript Tracks course outlines and collects after-class feedback to improve class interaction. ★ 6⑂ 1 Interswitch Python SDKPython Unofficial Python client for Nigeria’s biggest payment processor. ★ 0⑂ 0

Load-bearing tools.

Backends

  • Python
  • Django
  • Node.js
  • NestJS
  • Go

Cloud

  • AWS
  • VPC
  • ECS
  • Lambda
  • Docker
  • CloudFront
  • Route 53

Security

  • WAF
  • SIEM
  • OpenSearch
  • Neptune
  • Incident Response
  • Fraud Detection

Systems

  • Microservices
  • SNS/SQS
  • Event-Driven
  • Graph DBs
  • Real-time Pipelines

Delivery

  • GitHub Actions
  • GitLab CI
  • SES
  • CloudFormation

Frontier

  • LLM Agents
  • Embeddings
  • RAG
  • Fraud ML
  • Time-Series

Career, read bottom-up.

  1. IITA

    Developer

    The genesis. Where I first turned logic into living, breathing applications.

  2. Cellcore Nigeria

    Developer

    Cut my teeth on mobile and enterprise systems: software for the real world.

  3. Vasiti

    Developer

    Wrote the core code powering an e-commerce marketplace for university students.

  4. Tuteria

    Software Engineer

    Architected the Quiz Microservice from scratch for scalable, isolated assessments.

  5. Murcul

    Software Engineer

    Shipped full-stack features bridging complex platforms and friendly products.

  6. Cowrywise

    Senior Engineer, then AVP Engineering

    One of eleven “Cathedral Builders.” Engineering strategy and systems meant to outlast us, for 3M+ users.

Origins and load.

3M+

Nigerians whose money runs on systems I help build at Cowrywise

1M+

stock trades on Cowrywise within a year of launching Stocks

11/70

people promoted to AVP at once, January 2026. I was one.

10y

since the first lines of code at IITA

Obi Uchenna
David

AVP Engineering at Cowrywise, Lagos

This page is built like a cathedral: from the ground up.