PAAR SYSTEMS MySQL Database Administrator (DBA) Sydney, NSW (Onshore)
• Full-time / Contract
• Hybrid / Onsite Engaged through PAAR Systems, supporting enterprise retail transformation initiatives ROLE OVERVIEW We are looking for an experienced MySQL Database Administrator to manage, support, and optimize business-critical database environments within our Retail domain. The successful candidate will bring strong hands-on expertise in MySQL administration, performance tuning, high availability, replication, backup/recovery, and production support. You will ensure the stability, scalability, and security of high-transaction data architectures powering modern retail platforms.

WHAT YOU'LL DO
• Install, configure, administer, patch, upgrade, and maintain MySQL database environments.
• Monitor database health, availability, capacity, and performance proactively.
• Perform SQL and database performance tuning, including query optimization, indexing, and execution-plan analysis.
• Configure and manage MySQL replication, clustering, and high-availability (HA) environments.
• Manage comprehensive database backup, restoration, disaster recovery (DR), and business continuity procedures.
• Troubleshoot complex database performance, connectivity, locking, replication, and availability issues.
• Support critical production incidents and participate in an on-call / after-hours support roster where required.
• Implement enterprise database security controls, user access, roles, privileges, auditing, and encryption.
• Support mission-critical database migrations, major version upgrades, patching, and infrastructure transformations.
• Work closely with multi-functional application, infrastructure, cloud, DevOps, and security teams.




• Automate routine DBA activities and administrative tasks using modern scripting and monitoring frameworks.
• Maintain high-quality technical documentation, operational procedures, infrastructure diagrams, and runbooks. WHAT YOU'LL BRING (MUST-HAVE)
• 5+ years of Database Administration experience, with a heavy emphasis on strong hands-on MySQL expertise.
• Strong engineering experience with MySQL 5.7 / 8.x environments at scale.
• Proven proficiency in MySQL installation, optimization, configuration, upgrades, patching, and live troubleshooting.
• Deep architecture knowledge of InnoDB, indexing strategies, transactions, concurrency locking, and advanced query optimization.
• Hands-on operational experience setting up and managing MySQL replication and High Availability systems.
• Expert-level database performance diagnostics, real-time tuning, and root-cause troubleshooting skills.
• Solid backup and recovery lifecycle experience using enterprise tools such as mysqldump, MySQL Enterprise Backup, Percona XtraBackup, or equivalent.
• Excellent fundamental understanding of HA/DR, RPO, and RTO metrics in high-availability environments.
• Demonstrated experience supporting highly available 24x7 production database environments.
• Robust Linux/Unix administration foundations and automation scripting experience using Bash, Shell, or Python.




• Solid incident management discipline, analytical mindset, and structurally driven root-cause analysis skills. NICE TO HAVE
• Experience provisioning and maintaining managed cloud databases: AWS RDS/Aurora MySQL, Azure Database for MySQL, or Google Cloud SQL.
• Familiarity with enterprise variants and routing proxies: Percona Server/MySQL, ProxySQL, MySQL Router, or similar technologies.
• Direct operational exposure to MySQL InnoDB Cluster / Group Replication models.
• Experience leveraging telemetry and monitoring platforms such as Prometheus, Grafana, Datadog, SolarWinds, or Percona Monitoring and Management (PMM).
• Exposure to infrastructure-as-code and DevOps automation pipelines: Ansible, Terraform, Jenkins, or GitHub Actions.
• Proven track record migrating large-scale production databases between on-premises infrastructure and cloud environments.
• Cross-functional exposure to additional database stacks like PostgreSQL, Oracle, SQL Server, or MariaDB ishighly advantageous. ENGAGEMENT DETAILS Domain Retail Location Sydney, NSW (Onshore)
- Hybrid / Onsite based on project needs Experience 5+ years preferred Engagement Type Full-time / Contract Work Rights Applicants must hold valid work rights in Australia

HOW TO APPLY
Apply directly through LinkedIn with your updated CV, or reach out to our talent acquisition team at [email protected]. In your submission, please briefly highlight: 1. A brief overview of a mission-critical MySQL 8.x environment or cloud migration you successfully engineered. 2. Your experience managing replication topologies or handling a critical production incident. 3. Your current work rights in Australia and availability status.

📌 MySQL Database Administrator (Sydney)
🏢 PAAR Systems
📍 Sydney