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Case studies

Selected engineering work

Most of my work belongs to the companies I built it for. These write-ups describe the shape of each problem and the engineering approach taken, in generalised terms, with the confidential parts left out.

How to read these. Every professional case study below is sanitised. Technologies, systems and responsibilities are exactly as recorded on my CV. Architecture figures are conceptual: they show the conventional shape of a system of that description, not any employer’s internal design. No proprietary source code, infrastructure detail, customer data or confidential business metrics appear anywhere on this site.

01

Professional experience & confidential work

Systems built inside companies. Written up as case studies rather than repositories, because the code belongs to the organisations that own it.

  • Professional · sanitised

    FinTech · Java & Spring Boot

    Multi-Bank Funds Transfer Service

    Led backend development of a funds-transfer service operating across 8+ partner banks, plus the mobile-money integration that extended the platform into MTN's ecosystem.

    Organisation
    Baxi by Onafriq
    Period
    Feb 2020 – Jul 2026
    • Java
    • Spring Boot
    • REST APIs
    • Partner Bank Integrations
    • +2 more
  • Professional · sanitised

    FinTech · Node.js, Java & Laravel

    Biller Aggregation & Value Added Services

    Integrated 14+ VAS billers (airtime, electricity, betting) into a B2B middleware, and built the aggregation platform and reporting service underneath them.

    Organisation
    Baxi by Onafriq
    Period
    Feb 2020 – Jul 2026
    • Node.js
    • Java
    • Spring Boot
    • Laravel
    • +2 more
  • Professional · sanitised

    PropTech · Microservices, React Native & MLOps

    Property Management Platform

    Lead software and DevOps engineer: in-house backend microservices, a React Native app on iOS and Android, an engagement model served through TensorFlow Serving, and the CI/CD and cloud infrastructure underneath all of it.

    Organisation
    Deityvillas (GHECS)
    Period
    Jun 2024 – Present
    • PHP
    • Microservices
    • React Native
    • TensorFlow Serving
    • +3 more
  • Professional · sanitised

    Logistics · Laravel, Kotlin & IoT

    Freight Management Platform

    Architected a full freight management system and its Kotlin mobile application, integrating third-party tracking APIs and IoT logistics data to support dynamic delivery routing.

    Organisation
    Truckka Logistics Ltd
    Period
    Nov 2018 – Jan 2020
    • Laravel
    • PHP
    • Kotlin
    • Third-Party Tracking APIs
    • +2 more
  • Professional · sanitised

    GovTech · Python, NLP & Backend Systems

    Government Procurement & Tax Automation

    Backend systems for two state tax-automation programmes, including an NLP model for extracting insight from financial data. Earlier, the front end of a state public procurement portal.

    Organisation
    Centric Platform · Myrior Solution Ltd
    Period
    2017 – 2018 · 2023 – 2026
    • Python
    • NLP
    • Node.js
    • Microservices
    • +2 more
02

Public projects & open source

Placeholder, awaiting content

This section is reserved for publicly available projects and open-source contributions, kept deliberately separate from the professional work above so that nothing implies company code is public.

It is intentionally empty rather than filled with invented entries. Public repositories can be added as content files without touching the design, see content/case-studies/.

Contact

Let’s Build Something Meaningful

I’m open to senior and lead engineering roles internationally, backend, full-stack, architecture and platform work. The fastest route is email; LinkedIn works just as well.