Tell us about your last project — what kind of project it was, what you did, what tasks you had, and what stack you used?

In my last project, I worked as a DBA for a large e-commerce platform. The main tasks were ensuring high availability and performance of the database, as well as optimizing queries for analytical reporting. We used PostgreSQL as the primary DBMS, set up replication and backups. I also monitored using Prometheus and Grafana, and automated routine tasks with Python scripts. The project actively used indexes, table partitioning, and query optimization with EXPLAIN ANALYZE.