Lviv, Ukraine — Open to Remote
Oleksii Velychko
Web Developer · Mobile Engineer · C# .NET
I build robust web applications and mobile apps. From full-stack TypeScript products to Flutter-based Android apps — I bring ideas from whiteboard to production.
OLEKSII VELYCHKO
3+
Yrs Web
2+
Yrs .NET
1yr
Mobile
01
Tech Stack
TypeScript
Primary language
React
Frontend framework
Node.js
Backend runtime
C# .NET
Desktop & APIs
Flutter
Mobile framework
Dart
Mobile & web
Python
Scripting & data
HTML / CSS
The foundation
02
Experience
3+ years
Web Development
Full-stack web applications using TypeScript, React, and Node.js. Delivering
user-facing products and robust backend APIs with a focus on performance and maintainability.
2+ years
C# .NET Desktop Applications
Building professional-grade Windows desktop applications with C# and the .NET ecosystem.
Focus on data-driven interfaces, business logic, and cross-platform compatibility.
1 year
Mobile App Development
Building Android apps with Flutter and Dart. SoBeer?Sober! — a habit tracker with bento UI, offline-first Hive storage, and full localisation. Relascope+ — a professional forestry field tool with real-time data logging and charting.
Let's
work
together.
work
together.
Open to freelance projects, full-time roles, and interesting collaborations. Based in Lviv, available globally.