iOS & Flutter engineer · Warsaw, Poland
On the App Store
In development
Windows and mobile versions of client apps on Flutter and native iOS. I lead the Flutter team, choose the stack for new projects, and designed the architecture changes that made the apps easier to scale and maintain.
Five years of client apps for teams around the world, among them a sports platform for athletes, coaches and clubs with live streaming, real-time statistics and social features. Also where I started with Flutter.
Where it started: enterprise apps for iOS, Windows Mobile and Windows CE, with offline data, Bluetooth and NFC hardware, and direct technical support for the people using them.
Designed, built, tested and submitted solo.
On the App Store
Paste messy JSON, get a structure you can read and the types to match. Tree, node graph, JSONPath, diff and six code generators.
A crossword that builds every grid on your device. Eight languages, three ways to solve, a Daily Puzzle — and no ads, coins or account.
A first recording studio for kids aged 5–8. Thirteen instruments synthesized in code, pads tuned so nothing can sound wrong, and real multi-track recording.
A colour-by-tile studio for children aged 4–6 who cannot read yet. Only the tiles that belong take the paint, so a mistake is impossible.
An iMessage sticker pack with the Poland ball: twelve stickers for everyday chat, from “Like a boss” to “Happy birthday”.
In development
A match-3 mine with no lives, no ads, and a third star that money cannot reach.
A native macOS Git client written in Swift, with no Electron and no telemetry.
A calm, fully offline maze puzzle with hand-crafted mazes.
How I build my own apps
Every app listed here: no advertising SDKs, no analytics, no accounts, no servers.
This site: no cookies, no analytics, no third-party requests.