burravlev

Key achievements: - Monitoring and Observability: Developed dashboards in Grafana with Disk I/O utilization and latency percentiles (p99, p95) metrics. Configured alerting, reducing incident detection time by 40%. - Performance optimization: Transitioned Apache Solr integration from blocking synchronous calls to asynchronous REST requests. Reduced p99 response time from 30 to 10 seconds (a 3x improvement) for a high-load microservice. - Database optimization (PostgreSQL): Refactored slow queries, added indexes, and implemented partitioning of historical data by date. Speed ​​up critical reports by 25% and simplified the process of deleting old data.

Development and refinement of functionality Development of new microservices and modification of existing ones in Java (versions 8, 11, 17) using Spring Boot (Spring MVC, Spring Data JPA, Spring Cloud) within the framework of the Personal Account ecosystem for legal entities. Implementation of a REST API to ensure interaction between the frontend and backend, as well as integration with related services (billing, document flow, accounting systems). Writing business logic for working with legal entities (large corporations, individual entrepreneurs, government agencies), taking into account restrictions on roles and access rights in a high-load environment.