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Database Administrator (MySQL)

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Job Description - Database Administrator (MySQL)

Job description

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.

Job requirements

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.

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