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Job Description


Position: MySQL DBA

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Job summary

MySQL databases (including clustering & replication)


Key responsibilities

  • Install, configure and maintain MySQL instances (5.7/8.0 or higher) in production and staging.
  • Design, implement and manage MySQL clustering and high-availability solutions (Galera / Percona XtraDB Cluster / MySQL InnoDB Cluster or equivalent).
  • Implement and maintain replication topologies (asynchronous, semi-sync, group replication); perform failover and recovery.
  • Performance tuning: diagnose slow queries, optimize schema/indexes, tune MySQL configuration and OS-level settings.
  • Backup & recovery strategy: implement automated backups, test restores, point-in-time recovery.
  • Monitor DB health (alerts, metrics) and troubleshoot DB incidents (connectivity, locking, replication lag).
  • Work with developers to review schema changes, query plans and migrations.
  • Maintain security best practices: users, roles, encryption, audit as per policy.


Required skills & qualifications

  • 2–3 years hands-on experience as MySQL DBA or Database Engineer.
  • Strong practical knowledge of MySQL internals (InnoDB, buffer pool, transaction handling).
  • Experience with MySQL clustering & HA solutions (Galera, Percona XtraDB Cluster, MySQL Group Replication, or InnoDB Cluster).
  • Experience implementing and troubleshooting replication (master-slave, master-master, multi-source).
  • Experience with backup tools (mysqldump, xtrabackup, mysqlpump) and recovery operations.
  • Solid Linux administration skills (system tuning, I/O, kernel params).
  • Familiarity with monitoring tools (Prometheus/Grafana, Percona Monitoring & Management, Zabbix, Nagios).
  • Knowledge of automation/config management (Ansible, Terraform, Chef) is a plus.
  • Good troubleshooting, communication and documentation skills.

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