Tell us about the MegaFon project, what did you do?

In the MegaFon project, I was involved in developing and maintaining high-load services for processing large volumes of data in real-time. The main tasks included:

• Optimizing the performance of Java applications working with telecommunications data.
• Integrating with internal and external APIs for data collection and analysis.
• Developing modules for monitoring and logging, which allowed for quick identification and resolution of issues.
• Implementing automated tests and CI/CD processes to improve quality and speed of releasing new versions.

The project required a deep understanding of distributed systems, working with data streams, and ensuring service fault tolerance.