01 / INDEPENDENT PRODUCT
Small blocks.
Big possibilities.
Logica, now Funfolio.
A puzzle product built from the first idea to Android and iOS releases.
ANDROID · iOS · KOTLIN MULTIPLATFORM
Thoughtful software.
Across platforms.
I’m Ruslan. I build applications from the architecture up — with care for the details people actually feel.
Explore my workSELECTED WORK
From the first idea.
To the app in your hand.
Shared engineering.
Small blocks.
02 / OPEN SOURCE
One game.
Many platforms.
TetrisLite explores shared Kotlin architecture and native interfaces across mobile, desktop, and the web.
AndroidiOSDesktopWeb
Explore TetrisLite03 / OPEN-SOURCE CONTRIBUTIONS
Connection.
Beyond the internet.
Contributing to bitchat for Android: chat interfaces, QR contact verification, and reactive application state.
Bluetooth LENostrFlow
Explore the contributionsHOW I WORK
The interface is
only the beginning.
Great applications need foundations that hold up. My work connects modular architecture, reactive data flows, and interfaces that feel at home on each platform.
I use AI coding agents for research, implementation, review, and validation — alongside the engineering judgment that makes a product maintainable.
More about me01
Shared foundations.
Kotlin Multiplatform, modular architecture, and clear boundaries between UI, state, and data.
02
Native feeling.
Compose and SwiftUI interfaces, adaptive navigation, and the details of real platform integrations.
03
End-to-end ownership.
From technical design and implementation to testing, release, and ongoing improvements.
EXPERIENCE
Built through doing.
CURRENT · OPEN SOURCE
bitchat
Software Engineer / Open Source Contributor
Chat redesign, QR contact verification with CameraX and ML Kit, and migration from LiveData to StateFlow and Flow.
OCT 2024 – DEC 2025
Secret Santa
Kotlin Multiplatform Developer
Mobile architecture from scratch, shared Android and iOS interfaces, and Google and Apple sign-in.
JAN 2023 – MAY 2024
4Taps
Android Developer
Sole Android engineer for a production fintech wallet, from architecture and a reusable UI kit to banking APIs, BLE integrations, and release.
WRITING
Space for the
engineering notes.
Kotlin, multiplatform development, architecture, and the process behind the products.
Visit the blog