Henry Taiwo

Backend engineer. Building Rubi, a personal finance app for people who want to actually understand their money. Based in Lagos, Nigeria.

I work across the stack but live in the backend: Spring Boot, PostgreSQL, system design that holds up when things go wrong. I care about owning things end-to-end and shipping code that doesn't lie to you.

Currently splitting time between two part-time contracts: backend at Aviarai (AgriTech) and product work at AceBuddy (EdTech), while building Rubi as sole founder and engineer.

Open to full-time roles. Backend, fullstack, or anywhere I can own meaningful systems.

GitHub LinkedIn X Email Resume

Currently

Building the React Native client for Rubi. Thinking about multi-currency UX, offline-first data sync, and what “personal finance” actually means for someone who doesn’t have a salary. Shipping as I go.

Work

Aviarai, Backend Engineer (Part-Time), May 2025–Present

Built core inventory, RBAC, and event-driven systems from schema to production.

AceBuddy, Product Engineer (Contract), Oct 2025–Apr 2026

Shipped SSE streaming UI, marketplace modules, and an admin dashboard end-to-end.

Remita, Java Backend Intern, Mar–Aug 2024

Built APIs for fintech banking simulations and remediated authentication vulnerabilities.

Projects

Rubi, Personal Finance Platform

Spring Boot backend (75+ endpoints) complete. React Native client in active development. Built for manual tracking — no bank sync, full user control.

Divyd, Bill Splitting & P2P Payments

Built the entire React Native app solo. Shipped to App Store, 5.0 rating. Auth, wallets, splits, push notifications.

nanofetch, npm: @hnrie/nanofetch

Zero-dependency TypeScript HTTP client (~5KB). Universal runtime support. Axios-compatible API with structured error handling.

Lagos, Nigeria