John Ossai

I'm a Full-Stack Developer based in Abuja, Nigeria. I build web applications focused on data platforms, operations tooling, and products for the energy sector.

My work spans the full stack — from database schema design to polished React interfaces. Most of my professional work involves tools that help organizations manage, visualize, and act on operational data.

I specialize in Next.js, React, Node.js, and TypeScript. I've shipped projects for energy consultancies, NGOs, restaurants, universities, and startups across Nigeria and internationally.

Outside of client work, I contribute to open source and write about the engineering decisions behind the systems I build.