Kosiso Okoye

I’m a Mobile Developer with 3 years of experience designing, developing, and maintaining scalable native and cross-platform mobile applications using Kotlin and Jetpack Compose. I focus on MVVM and modern Android architecture patterns, integrating RESTful APIs, and delivering user-first features with clean, testable, maintainable code in Agile squads.

At Send24 (Logistics), I redesigned and maintained MV I architecture for feature modules, improving maintainability and enabling weekly shipped updates with zero regression incidents. I used Kotlin Multiplatform to share business logic across Android and iOS, cutting platform-specific implementation time by an estimated 40%, and I integrated RESTful APIs with Ktor for reliable backend communication. I also drove performance optimisation with Kotlin Coroutines, reduced UI thread blocking, and improved perceived responsiveness while collaborating through active code reviews with QA and cross-functional teams.

Previously, at Grahak Setu (Customer Engagement App), I developed scalable Android features using Kotlin and MVVM, integrating RESTful APIs via Retrofit and using Kotlin Coroutines to keep heavy network work responsive. As Android Developer & Co-founder of Port (Delivery Bike-Hailing App), I designed and launched an Android MVP on the Google Play Store, reducing development costs by 78% through lean architecture decisions, and integrated Google Maps, Places, and Routes for real-time location tracking. Through projects like Smart Counter (ML Kit + CameraX), FoodShare (GeoCoding API + Dagger-Hilt), and Run Tracker (foreground service + Maps + Room), I keep building modern Android experiences with a strong emphasis on architecture, performance, and quality.