Oluwakemi Awosile is a Senior Backend Engineer with over 10 years of experience building scalable fintech systems. Former Tech Lead at Interswitch (Nigeria’s leading payment platform), she now works in a fintech company, specializing in NestJS architecture and refactoring legacy code into maintainable, modular designs.

Her 1-week refactor of a monolithic payment provider system - born from a failing CI/CD pipeline - transformed tech debt into clean, extensible code and inspired this book.

Oluwakemi is passionate about real-world engineering, clean architecture, and sharing lessons from the trenches (including the occasional eye twitch 😅).