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Oleksandr Shyrokyi

@oleksandrshyrokyi

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Flutter/Dart developer building iOS, Android, web, and macOS apps, including a VPN browser and AI-powered dating app.

Poland

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Flutter developer with 5 years of building apps people actually use, across 11+ products for iOS, Android, web and macOS. I like hard problems: ending work as one of two Flutter devs on a VPN browser at Apollo28, wrangling VPN servers, custom deep-link flows and shaders.

Before that I built an AI-powered dating app (OTAKOI) with Riverpod, Rive animations and RevenueCat, a fiat/crypto wallet with biometrics and 2FA, and a watch-recognition app where I trained my own ML model. I've also built live trading charts, real-time chats over WebSockets, and a macOS screenshot manager with multi-windowing.

I often work directly with clients in the US, care about clean architecture and tests, and use AI tools (Cursor) every day to ship faster. I'm fully remote from Poland, with my own setup, and always up for the next challenge.

Experience

Work history, roles, and key accomplishments

Current

Flutter Developer

Current

Apollo28

Sep 2025 - Present (1 year 1 month)

Developed a white-labeled VPN browser for iOS and Android as one of two Flutter developers, handling VPN servers, deeplinks, browser features, Firebase services, shaders, and AI tools.

Flutter Dart VPN Firebase Shaders AI Tools White Labeling

Flutter Developer

OTAKOI

Feb 2025 - Sep 2025 (7 months)

Developed an AI-powered dating app for iOS and Android as one of two Flutter developers, with direct communication with a US customer, using Riverpod, GetStream, RevenueCat, and custom animations.

Flutter Dart River Pod GetStream.Io RevenueCat Flutter Hooks Swagger Rive Flow Builder

Flutter Developer

RewiSoft

Jun 2024 - Jan 2025 (7 months)

Developed a direct service platform for cleaning companies and their customers on the web, as one of two Flutter developers, with direct communication with a US customer, using responsive layout, rx_dart, and GraphQL.

Flutter Dart RxDart GraphQL Responsive Design

Flutter Developer

FreshTech

Apr 2023 - May 2024 (1 year 1 month)

Developed a fiat/crypto wallet app for iOS and Android, replacing a former Flutter developer, with direct communication with the customer and backend team, handling biometrics, OTP, and 2FA confirmations.

Flutter Dart Biometrics OTP 2FA Provider Get_it

Flutter Developer

If-else Solutions

Nov 2022 - Apr 2023 (5 months)

Developed a watch-recognizer app for iOS and Android as a single Flutter developer, training a custom ML model to recognize watches, and also worked on a logistic department manager app and a textile enterprise organizer app.

Flutter Dart Cubit Get_it Machine Learning WebSockets QR Scanner

Flutter Developer

AVIDI

Sep 2022 - Nov 2022 (2 months)

Developed a trading app for iOS and Android, replacing a former Flutter developer, with direct communication with the customer, working on custom live-charts and refactoring old Dart code.

Flutter Dart Cubit BLoC Provider Get_it Chart Creation

Flutter Developer

Stfaclon

Jul 2020 - Sep 2022 (2 years 2 months)

Developed a map-based dating app and an e-books commerce app for iOS and Android, working with a mentor and communicating with the dev team, handling maps, communication flows, audio files, and complex genre structures.

Flutter Dart Cubit Get_it Maps Audio Ebooks