Top Database Administrator Jobs in Sydney

Provide operational DBA support for Oracle and SQL Server environments, monitor and tune performance, manage backups/upgrades/recovery, support high-availability production systems, contribute to operational projects, and participate in an on-call rotation.

Manage and administer enterprise database platforms for targeting systems, including performance tuning, backups and recovery, security controls, and stakeholder knowledge sharing.

Maintain availability, security, and performance of SQL Server and PostgreSQL environments. Perform installations, upgrades, patching, backups, recovery, replication, clustering, and disaster recovery. Support migrations (on-premises→cloud, SQL Server→PostgreSQL), troubleshoot performance and connectivity, contribute automation via Ansible/GitHub Actions and scripting, work with cloud/DevOps/app teams, and maintain documentation and standards.

Manage and support LoadSpring's database portfolio: install and upgrade servers, enforce security and access controls, maintain backups and recovery plans, monitor performance and alerts, apply patches, troubleshoot issues, respond to tickets within SLA, follow change/problem management, participate in 24/7 on-call rotation, and mentor the DBA team.

Design, deploy and support scalable, highly available AWS Aurora/RDS databases; troubleshoot performance incidents on a 24/7 roster; build automation and operational playbooks; mentor team members and document systems to support migrations and critical projects.

Primary Oracle DBA for a production RAC cluster with Data Guard standby. Own performance tuning, storage and capacity planning, patching/version management, backup/recovery, security hardening, and incident response. Lead index, execution-plan, and connection-pool optimization; support upgrades, APEX/ORDS deployment, environment refreshes, and infrastructure migration while documenting runbooks and collaborating with application and infrastructure teams.