Software engineer. I build systems that go to production, not demos that die in a repo.
Founder of Trofficient — transit technology for Ghana's informal trotro network. Engineering lead at a retail company where the software I write moves real inventory and real money. I work full-stack: React/React Native on the front, Node.js + PostgreSQL on the back, deployed on real infrastructure with real users.
Based in Accra. BSc Information Technology, Regional Maritime University.
osAfrica — An AI-native operating system currently in active development, focused on rethinking the OS layer with AI as a first-class primitive rather than a bolted-on assistant.
Trofficient — A transit intelligence platform for Ghana’s trotro ecosystem, featuring real-time vehicle tracking, dynamic pricing, and mobile-money payments using React Native, Node.js, Socket.io, and PostgreSQL.
AI for SMEs — An AI-powered operations platform for SMEs, designed to transform sales, inventory, expenses, and profit data into owner-ready insights, reports, and actionable business decisions.
CampusConnect — A university social and collaboration platform built to centralize student communication, campus events, academic updates, and community engagement into one connected digital ecosystem.
| Project | What it does | Stack | Live |
|---|---|---|---|
| sellis | Production web application | React · Node.js | sellisspa.com |
| cp-online | E-commerce / business platform for a retail operation | Full-stack JS | captivatinghometrade.com |
| npm-git-helper | Published npm package — Git workflow tooling | Node.js | npm |
| E-Commerce App | Storefront with cart/checkout flow | React | demo |
| School Management System | Admin + records management | React | demo |
Custom domains, live traffic, paying-adjacent use. The point of these is not that they exist — it's that they don't break.
- Ship the executable MVP, then layer. I've killed my own over-engineered microservice plans when a monolith shipped faster. Architecture serves delivery, not the reverse.
- Full-stack by necessity, backend by preference. I'm most interested in the parts users never see: data models, payment integration, the failure modes nobody plans for.
- Ghana-first constraints. Mobile money over cards, intermittent connectivity, low-end devices. Building for this market is a forcing function for discipline.
Core: JavaScript/TypeScript · React · React Native · Node.js · Express · PostgreSQL · MongoDB Also: Python · Django · Java · C++ · C# · Tailwind · Git · Docker-adjacent deployment (Vercel / Hostinger / Netlify split architectures)
I optimize for fluency in a few things over familiarity with everything. The list is what I reach for; the first line is what I'm fast in.
I'm open to conversations about backend engineering, systems work, fintech/transit infrastructure for emerging markets, and anything involving building for the African consumer.
Portfolio → · LinkedIn · Instagram · leslieajayi27@gmail.com