⚡ Senior Android Engineer | Kotlin-First Developer | Mobile, Tablet & TV/STB Specialist | Full-Stack Android (Firebase, XMPP, WebRTC) | Spring Boot Backend
🎯 Senior Android Engineer with 9+ years of experience building high-performance native applications across mobile, tablet, Android TV, and Set-Top Box (STB) platforms.
I specialize in Kotlin-first Android development, working across the full Android stack — from UI/UX to system-level behavior, device integration, and backend services.
📱 I build responsive, production-grade applications using Jetpack Compose, Coroutines, Flow, and modern Jetpack libraries, with strong focus on performance, scalability, and clean architecture.
📺 Deep expertise in Android TV and STB development, including:
- Custom launcher development
- D-pad / remote navigation systems
- Leanback UI architecture
- Device-level optimization for low-resource hardware
- STB certification and compliance workflows
🔐 Experienced in rooted Android and system-level development, including:
- System/privileged applications
- Magisk-based environments
- Debugging on rooted/custom ROM devices
- OS-level compatibility and firmware troubleshooting
🌐 Full-stack capable Android engineer:
- Firebase (Auth, Firestore, Messaging, Remote Config, Crashlytics)
- XMPP real-time messaging systems
- WebRTC & VoIP audio/video communication
- Spring Boot (Kotlin & Java) backend APIs
🧱 Strong advocate of modular architecture, clean code, and scalable systems. I enjoy solving complex engineering problems and improving legacy codebases.
👨🏫 Experienced team lead and mentor, previously managing 20+ engineers across distributed teams (Vietnam, Cebu, Philippines), working closely with stakeholders and product teams to deliver production systems.
- Kotlin
- Java
- C++
- Android
- Jetpack Compose
- Spring Boot
- Ktor
- MVVM / Clean Architecture
- Coroutines / Flow
- Room / DataStore
- Git / Gradle
- Firebase SDKs
- Firebase
- XMPP
- WebRTC
- REST APIs
- PostgreSQL
- Jetpack Compose UI development
- MVVM + Clean Architecture
- Offline-first applications (Room, DataStore)
- Firebase integrations (Auth, Messaging, Analytics)
- Custom launcher and home screen systems
- D-pad / remote navigation UX
- Leanback UI development
- Performance optimization for TV/STB devices
- STB certification and compliance
- System app development (privileged permissions)
- Magisk/rooted Android environments
- Custom ROM debugging and OS-level troubleshooting
- Device compatibility and firmware-level fixes
- Firebase real-time systems
- WebRTC / VoIP features
- XMPP messaging architecture
- Spring Boot REST APIs (Kotlin/Java)
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