● Independently built and published Znalica, a quiz game for Android and iOS, using Kotlin Multiplatform, Jetpack Compose and Firebase. ● Owned product definition, architecture, UI implementation, Firebase backend and platform integrations; handled signing, Google Play and App Store submissions, and ongoing maintenance. ● Implemented authentication, multiplayer gameplay, push notifications, analytics, ad monetization and in-app purchases. ● Reached 500+ organic downloads and a 5.0 Google Play rating as of October 2026.

● Ported 14 Windows game titles to Android, including Simple Solitaire, Gin Rummy Deluxe, Simple Mahjong, Backgammon Deluxe and Word Search. ● Adapted game logic, UI, input handling and platform-specific behaviour using C#, MonoGame, Android SDK and .NET technologies. ● Implemented consent flows and in-app purchases, upgraded advertising SDKs, fixed production bugs and delivered new features. ● Handled Android signing and Google Play publishing, collaborating with a distributed team on production releases.

● Helped initiate a greenfield Android product and developed login, home, ticket-purchase, gameplay and settings features using Kotlin and Jetpack Compose. ● Worked with MVVM, dependency injection, REST integrations and automated tests across the application. ● Integrated analytics, encrypted data handling and Sonar code-quality checks, working with product, backend, QA and design.

● Developed production Android features for radio, children’s entertainment and e-commerce applications using Kotlin, MVVM and MVP. ● Implemented Google Pay, Bluetooth connectivity and media-streaming features; maintained application stability and user experience across client projects.

● Developed and maintained features for a Singaporean bank’s Android application using Kotlin, MVVM, Koin and GraphQL. ● Worked with automated integration tests to support production banking features.

● Initiated and completed development of ProNote, an interactive educational Android application for schools and large 4K displays. ● Worked with Kotlin, MVVM and Android Canvas to deliver interactive functionality for large-screen use.

● Led a five-person team, assigned tasks, reviewed code, made architectural decisions and mentored developers. ● Contributed UI/UX concepts and feature ideas, and managed Android application signing and publishing. ● Owned Firebase integrations, advertising, push notifications and production application maintenance.

● Developed and maintained Android applications using Java, integrating advertising services and third-party libraries. ● Implemented UI/UX updates and contributed new application concepts and documentation.