Hey 👋, I'm Van!

I'm a Senior Android Developer with 8+ years crafting robust mobile experiences. Currently leading the Android team at a major bank, where I architect secure, scalable solutions that thousands rely on daily.

I'm passionate about Clean Architecture, Jetpack Compose, and building bulletproof banking apps. When I'm not debugging at 2am or mentoring teammates, you'll find me exploring the latest in mobile security or sharing war stories from production.

Mobile Banking Security Weekly #2

September 2, 2025

android ios security

16KB page size mandate, iOS zero-day patch, and WebView 140 updates for banking apps

Mobile Banking Security Weekly #1

August 17, 2025

android ios security

Critical Android updates, API requirements, and community reports for mobile banking teams

Building a Native Security Library for a Banking Android App

January 9, 2025

android security ndk

The story of how I built a C++ security layer to protect sensitive banking data, from basic Java encryption to a full native library with anti-tampering

From XML Hell to Jetpack Compose: Migrating 100,000 Lines of UI Code

January 8, 2025

android jetpack-compose migration

The real story of migrating a banking Android app to Jetpack Compose - the wins, the failures, and that one time we broke production

That Morning 50,000 Users Couldn't Login: My First Production Crash

January 7, 2025

debugging production android

The story of my first major production incident - how a simple SharedPreferences migration brought down a banking app, and what I learned about debugging under pressure