Developed the back-end system for a Crypto Copy Trading platform using ASP.NET.• Integrated with various cryptocurrency exchange APIs (Binance, BingX, Bybit, Gate.io, Kucoin) to automate trade execution.• Implemented robust error handling using retry policies to ensure successful trades even in the face of network errors or disruptions.• Optimized memory efficiency and performance through memory caching for real-time trading data.

Developed over 80 desktop VPN applications on Windows platform using C# and WPF, providing millions of people with the freedom to access the internet securely and without restrictions.• Implemented multiple protocols including VPN, OpenVPN, ShadowSocks, V2Ray, and WireGuard to ensure secure and reliable connections.• Drove the development of back-end systems using PHP Laravel, powering the core functionality of applications.• Leveraged WebSocket to enable real-time data… Show more Developed over 80 desktop VPN applications on Windows platform using C# and WPF, providing millions of people with the freedom to access the internet securely and without restrictions.• Implemented multiple protocols including VPN, OpenVPN, ShadowSocks, V2Ray, and WireGuard to ensure secure and reliable connections.• Drove the development of back-end systems using PHP Laravel, powering the core functionality of applications.• Leveraged WebSocket to enable real-time data updates, greatly improving user interface responsiveness and providing instant notifications for critical events.• Maintained and updated the applications to ensure compatibility with the latest operating systems and security patches. Show less

Developed and led both back-end and front-end development for team projects using ASP.NET Core, SQL Server and Vue.js, delivering high-quality mobile applications such as a diabetes scheduler and an administration panel.• Led optimization efforts on a commercial project as Senior Developer, reducing code base from 100k to 10k lines and achieving remarkable gains in performance and functionality.• Mentored three interns in back-end and front-end development, teaching them… Show more Developed and led both back-end and front-end development for team projects using ASP.NET Core, SQL Server and Vue.js, delivering high-quality mobile applications such as a diabetes scheduler and an administration panel.• Led optimization efforts on a commercial project as Senior Developer, reducing code base from 100k to 10k lines and achieving remarkable gains in performance and functionality.• Mentored three interns in back-end and front-end development, teaching them C#, ASP.NET Core, and Vue.js, and providing guidance on best practices in software engineering. Show less