Senior Android Developer with 9+ years of experience building apps used by millions — from Rakuten Viber to healthcare and real-time audio products. Under my own label, Vaunou Apps, I design and ship mobile games and tools from the first sketch to the store page.
I'm a Senior Android Developer based in Minsk, Belarus. For more than nine years I've been building Android apps that handle real-world complexity — healthcare data, gaming platforms, real-time audio, ad SDKs — and my code runs in production for millions of users.
I started my career on the backend side, as an Oracle / PL/SQL developer designing databases and server-side logic. That background still shapes how I think about data, reliability and performance on mobile.
I've led Android teams, mentored developers, run code reviews and architecture discussions, and taken products from concept to Google Play release in Scrum and Kanban teams.
Outside of client work I run Vaunou Apps — my own small studio where I make games and apps end to end: idea, design, code, store listing and updates driven by what users tell me.
Leading feature development: real-time audio streaming with Agora SDK and WebSockets, Jetpack Compose animations, Glance widgets, healthcare apps with Health Connect, Google Fit and sensor data.
New features for the Viber Android app, complex custom views on Canvas, stability work that reduced crash rates.
Managed a team of developers, delivered highly scalable mobile solutions and brought new technologies into the workflow.
Designed and built Android applications, improved performance and stability together with cross-functional teams.
Designed reliable databases, wrote server-side PL/SQL and optimized legacy systems.
Relaxing jigsaw puzzles that work completely offline. No timers, no lives, no pressure — just you and the picture.
A money-ladder trivia game inspired by the legendary TV show: 15 questions to the top prize, studio lights and that tense pause before every answer.
The classic number puzzle to relax and train your brain. Thousands of unique grids that replace paper and pencil — free and offline.
Open ZIP, RAR and 7Z archives from downloads, email and messengers. Preview files inside without extracting, and create password-protected archives.
A PDF reader, editor and scanner where every feature is free — no PRO version, no subscription, no trial. All documents are processed on the phone.
I share what I learn about Android development and indie publishing.
Deep dives like "How to Correctly Count Steps on Android" and the story behind my Jigsaw Puzzle game.
Read on Medium → HMy profile on the largest Russian-speaking tech community.
Open Habr → ▶All Vaunou Apps titles on the Google Play Store.
Developer page → REvery one of my games and apps on RuStore.
Developer page →The fastest way to reach me is LinkedIn. I read every message — and every review of my apps.