Came to work in Yandex Synchronise data from different tables with Yson using YQL queries. Migrating project to a new version of JUnit, Java and Spring boot for the internal framework

Worked at STM Labs - Worked on a high-load service with a reactive stack (Spring Webflux) and advanced security (Spring Security and custom RPC framework) - Used clean-architecture to deal with legacy code and make it more readable and maintainable - Wrote complex SQL queries using the jOOQ library - Added dynamic and customizable validators through configuration

I did an internship at Yandex: - Added endpoints with new functionality, changed the behavior of legacy code and tested my implementation in pre-production, looked at traces and logs to find bugs - Communicated with related teams to solve work problems - Taught the balancers of the entire Yandex monitoring to ban shards, while maintaining the persistence of the cache and saving the state in Ydb - Worked a lot with asynchronous code, actor systems and distributed architecture