Oleksandr Lukin

C++/C# developer with 14+ years of commercial experience. I've built performance-critical software for major companies: automotive infotainment and digital cockpits (Daimler, Visteon), navigation and maps (HERE), and real-time market data systems (London Stock Exchange Group).

I take projects end-to-end — from clarifying requirements to a working, tested result. What I most often help clients with:

— C++/C# development, plus optimization, refactoring and bug-fixing of existing code; — desktop applications for Windows in C# (WPF/WinForms); — Telegram bots and web backends / REST APIs; — games and game logic in Unity (C#) and Cocos2d (C++); — automation, parsers and scripts in Python; Linux services with Docker.

I work in a clear and predictable way: I explain things plainly, keep you updated as the task progresses, and meet agreed deadlines. Open to both hourly and fixed-price engagements.

Services

1. C++/C# code optimization & refactoring — profiling, performance tuning, cleaning up legacy code.
2. Bug fixing in C++/C# projects — diagnosing and resolving defects in existing codebases.
3. Desktop applications in C# (WPF/WinForms) — Windows desktop tools and utilities.
4. Telegram bot development — bots for automation, notifications and small services.
5. Web backend / REST API — server-side logic and APIs.
6. Unity / Cocos2d game development — game logic, tools and gameplay systems.
7. Python automation & parsers — scripts, data scraping and routine task automation.

Skills

C, C++, STL, C#, .NET, WPF, WinForms, Python, SQL, Bash, Telegram Bot API, REST API, Unity, Cocos2d, Linux, Docker, Git, CMake, Jenkins, CI/CD, multithreading, performance optimization, refactoring, OOP/OOD, unit testing.