Senior Database Administrator | 10+ Years of ExpertiseAs a Senior Database Administrator with over a decade of experience, I specialize in managing large-scale, complex database environments, ensuring high availability, scalability, and security for mission-critical systems.Key Areas of Expertise● Database Administration: Manage over 600 database instances, including 200+ production systems, handling data up to 20+TB across MySQL (InnoDB, TokuDB, Percona, MariaDB), PostgreSQL, ClickHouse and Kafka environments.● MySQL & PostgreSQL: Lead in MySQL partitioning, replication, automated backup strategies (Xtrabackup, Mysqlbackup), and query tuning. Optimize PostgreSQL performance, ensuring seamless application integration.● ClickHouse & Kafka: Administer high-performance ClickHouse databases for large-scale data processing and real-time financial applications. Ensure smooth data flow and scalability with Kafka clusters.● Kubernetes (K8s): Deploy and orchestrate MySQL, PostgreSQL in containerized Kubernetes environments, ensuring efficient resource management and high availability.● Automation & Scripting: Develop custom scripts in Python and PHP to automate database management, performance monitoring, and reporting, driving operational efficiency and faster issue resolution.Technologies & Tools● Linux Environment Management: Expertise in managing Linux-based infrastructures (Nginx, Apache, ActiveMQ, Memcached), automating tasks with shell scripts, cron jobs, and logrotate.● Monitoring & Performance Tools: Extensive use of Icinga, Grafana, and Percona Monitoring and Management to track performance, monitor growth, and troubleshoot issues with 24/7 on-call support.● Elasticsearch: Implement log aggregation and full-text search functionalities to support real-time system insights and enhance troubleshooting capabilities.● Version Control & Agile Practices: Lead collaboration across departments in an Agile environment using tools like Atlassian JIRA, GIT for version control and code reviews.What I Deliver● Operational Excellence: Proven track record of optimizing database environments for performance, scalability, and security.● Innovative Solutions: Passionate about developing automation tools that streamline database management and improve operational efficiency.● Collaborative Leadership: Skilled in driving continuous improvement and cross-functional collaboration in dynamic environments.