Mustapha Amin

Refactored a legacy codebase into a clean, modular architecture to reduce technical debt and increase team development velocity. Built an offline-first architecture with local persistence and a custom sync engine to ensure 100% reliability for form submissions even in low-connectivity environments.

Led engineering and launched two fintech platforms (Ravapaye & OZB Connect) from zero to production, establishing core mobile infrastructure for the organization. Implemented key features including bill payments, airtime/data services, and secure payment integrations using a clean, maintainable architecture. Also introduced enterprise-grade security practices and CI/CD pipelines, reducing deployment time by 60% and improving reliability for production releases.

Delivered UI/UX improvements across 25+ screens, increasing user satisfaction by 45%. Integrated payment gateway via REST APIs with a 99.2% transaction success rate during testing. Improved overall performance by 30% through architectural optimization and refactoring.