Database Administrator (MySQL)

Roles and Responsibilities:

Database Administration & Maintenance:

• Install, configure, upgrade, and maintain MySQL database instances (primarily MySQL 5.7/8.0).

• Perform routine database maintenance tasks: backups, recovery, patching, and user management.

• Monitor database health, performance, and availability using tools like MySQL Enterprise Monitor, Percona Monitoring and Management (PMM), or custom scripts.

• Implement and manage database replication (standard and GTID) for high availability and disaster recovery.

• Manage database security: user access control, privileges, and auditing.

Performance Tuning & Optimization:

• Identify and troubleshoot slow queries using tools like EXPLAIN, pt-query-digest, and performance schema.

• Perform query optimization and index tuning to improve application performance.

• Monitor and optimize key performance metrics (e.g., CPU, memory, I/O, locks, connections).

• Conduct routine database capacity planning.

High Availability & Disaster Recovery:

• Support and maintain high availability solutions like MySQL InnoDB Cluster, Group Replication, or standard master-slave replication.

• Develop, test, and execute robust backup and recovery strategies using tools like mysqldump, mysqlpump, XtraBackup, or native snapshots.

• Participate in Disaster Recovery (DR) drills to ensure business continuity.

Collaboration & Support:

• Collaborate with software developers on schema design, SQL query review, and deployment processes.

• Provide 24/7 on-call support on a rotational basis for critical production database issues.

• Create and maintain clear documentation for processes, procedures, and configurations.

• Work within defined ITIL processes for change, incident, and problem management.

Required Qualifications & Skills

• 2+ years of hands-on professional experience as a MySQL Database Administrator.

• Strong proficiency in MySQL database management, architecture, and internals (e.g., storage engines, locking mechanisms)

Must-Have Technical Skills:

• Solid experience with MySQL replication (Standard and GTID).

• Proven experience with MySQL backup and recovery procedures (mysqldump, XtraBackup).

• Strong SQL skills and experience with performance tuning and optimization.

• Experience with monitoring tools (e.g., PMM, Nagios, Zabbix, Grafana).

• Familiarity with Linux/Unix operating systems and shell scripting.

Nice-to-Have:

• Experience with MySQL 8.0 features.

• Exposure to cloud database platforms (AWS RDS/Aurora, Google Cloud SQL, Azure Database for MySQL).

• Familiarity with other database technologies (e.g., PostgreSQL, MongoDB, Redis).

• Knowledge of automation and scripting languages (e.g., Python, Ansible).

• Understanding of DevOps practices and CI/CD pipelines.