Deddy Rumapea Email & Phone Number

Jakarta, ID

Singapore

• Led Android app projects, designing and developing new features, conducting code reviews to maintain code quality standards, handling app deployment, conducting architecture reviews, and crafting user guide documents
• Refactored 186+ screens from XML Views to Jetpack Compose, reducing technical debt and improving maintainability
• Reduced build times by 65% through the migration from Kapt to KSP, improving developer productivity
• Introduced code obfuscation and minification, resulting in a 60% app size reduction and enhanced app protection
• Resolved critical bugs and managed app deployment to the Play Store within the first month of onboarding
• Technologies used: Kotlin, Jetpack Compose, Coroutines, Flow, Dagger Hilt, Retrofit, Firebase, JUnit, MockK, Git

• Co-founded a social startup promoting environmental awareness through campaigns advocating for a green lifestyle
• Secured $10,000 in incubation funding from Google and Kemendikbudristek, supported by University of Indonesia
• Led the development of the Android app with 500+ downloads on the Google Play Store and an average rating of 4.0/5
• Implemented key features including forums with user-generated content, cloud messaging/push notifications using Firebase Cloud Messaging, an authentication feature using Firebase Auth, and an AI computer vision feature.
• Developed automation for UI testing with Espresso and unit testing with JUnit and Mockito to ensure app reliability

Indonesia

Led 8 training sessions with a total of 300+ students, covering topics such as functional and object-oriented programming (OOP) using Kotlin, SOLID programming principles, and Android fundamentals

• Directed a consultation group of 25+ students, delivering study assistance and debugging guidance in Java and Kotlin
• Mentored students through the completion of their final course projects, providing hands-on support in troubleshooting