Abdullah O. Mustapha

Backend Engineer & Open Source Builder

Open to work

Dedicated backend engineer with a track record of shipping production-grade systems. 95% of client projects I've worked on have gone live and stayed live — I build for reliability, not just for demo day.

Right now focused on Doks AI and Zenon Router. Based in Freetown, Sierra Leone, originally from Lagos.

Stack

C
C++
Go
TypeScript
Node.js
Bun
FastAPI
PostgreSQL
MySQL
MongoDB
Redis
Docker
Cloudflare
Vue.js
Arch Linux

Experience

Backend Engineer·GenelineX
Aug 2024 – Present
  • Build and maintain core product backend serving real customers
  • Develop open-source SDKs clients use to integrate the platform into their own applications
  • Shipped an embeddable chatbot widget and OpenMOS — a low-resource language evaluation tool
  • Work closely with design and frontend teams to deliver a seamless end-to-end customer experience
Lecturer·College Of Digital Excellence
Mar 2024 – Present
  • Teach C, C++, JavaScript, Python, HTML/CSS, logic building, and effective problem solving
  • 500+ students taught across multiple cohorts
Team Lead & Co-founder·DropX
2023 – Present
  • Lead the full team across backend, frontend, and product
  • Own technical direction and delivery — working to ship DropX to market with zero compromise on quality

Contribution Graph

Selected Work

View all
AI

Doks AI

RAG pipeline for answering document queries with AI.

Research

Open MOS

Gathering and evaluating low-resource African languages — so they don't get left behind by AI.

TypeScript

Ticket360

Customer support ticketing — from phone calls and sticky notes to a single organized platform.

Get in touch

Open to interesting projects, collaborations, and conversations. Hit me at abdullahmu4life@gmail.com