Subsidiary of e-finance, focusing on digitizing tax collection process.• Wrote and optimized SQL Server queries and stored procedures to extract data from databases containing millions of transactions related to taxpayers.• Implemented advanced SQL techniques including triggers, views, CTEs, and window functions to handle complex data processing tasks and improve reporting.• Assisted in troubleshooting microservices issues by searching through logs collected via Logstash and… Show more Subsidiary of e-finance, focusing on digitizing tax collection process.• Wrote and optimized SQL Server queries and stored procedures to extract data from databases containing millions of transactions related to taxpayers.• Implemented advanced SQL techniques including triggers, views, CTEs, and window functions to handle complex data processing tasks and improve reporting.• Assisted in troubleshooting microservices issues by searching through logs collected via Logstash and stored in Elasticsearch, helping to identify and resolve problems more efficiently.• Helped with backing up and restoring messages from RabbitMQ queues during issue investigation, ensuring important data was preserved for analysis. Show less

Quantum Bits is a versatile software house specializing in developing mobile applications across variousdomains.• Implemented a comprehensive reviewing system for a food delivery app using Test-Driven Development(TDD), enabling user and chef feedback collection.• Developed a reels feature for a football-focused app, mirroring functionality found in Instagram andFacebook, allowing players to upload and watch short videos.• Designed an efficient feed management system to… Show more Quantum Bits is a versatile software house specializing in developing mobile applications across variousdomains.• Implemented a comprehensive reviewing system for a food delivery app using Test-Driven Development(TDD), enabling user and chef feedback collection.• Developed a reels feature for a football-focused app, mirroring functionality found in Instagram andFacebook, allowing players to upload and watch short videos.• Designed an efficient feed management system to enable seamless video playback and scrolling,enhancing user engagement and content discovery within the app. Show less