Responsibilities: - Developed high-performance web applications using C# and ASP.NET Core. - Designed and implemented RESTful APIs for PostgreSQL, ensuring efficient data access. - Optimized database queries, reducing data access time by 15%. - Implemented user authentication and authorization using JWT tokens. Created unit tests using XUnit, ensuring high code quality. - Developed interactive and responsive user interfaces using Angular and TypeScript, ensuring optimal performance across different devices and browsers. - Integrated Angular Material for UI components and implemented a dark theme to enhance user experience and improve accessibility. Key Achievements: - Successfully deployed the platform for over 1000 users. - Ensured high levels of security and login speed through effective use JWT tokens. - Optimized API response time by 30% through database query optimizations. - Enhanced development and deployment processes using GitHub Actions. - Automated email newsletter sending process, resulting in increased user engagement.