Top Database Administrator Jobs in Toronto

Support database administration alongside a senior DBA by writing and optimizing SQL queries, monitoring performance, maintaining schemas and indexes, managing backups, restores, security, and access, and ensuring data integrity. Collaborate with developers on database usage, document systems and processes, troubleshoot issues, and provide coverage when the senior DBA is unavailable. The role offers mentorship and opportunities for increased ownership.

Administer, design, optimize, secure, and support enterprise Db2 for z/OS environments powering critical banking applications. Responsibilities include database design, SQL tuning, performance analysis, backup and recovery, security governance, change deployment, troubleshooting distributed connectivity, and high-availability support. The role partners with development and technology teams on resilient database solutions, modernization, automation, and transformation initiatives.

Lead SQL Server infrastructure modernization across distributed environments. Responsibilities include designing resilient database architectures, implementing AlwaysOn and failover clusters, automating deployments with Terraform, Ansible, and PowerShell, developing backup and disaster recovery strategies, optimizing performance with AI-powered tools, supporting cloud integration, leading infrastructure projects, documenting best practices, mentoring colleagues, and participating in 24/7 on-call support.

Supports Oracle database administration, monitoring, backup and recovery, maintenance, upgrades, patching, performance tuning, deployments, and automation. Assists with database changes across development, UAT, and production environments, collaborates with agile teams, documents procedures, and participates in a rotational 24/7 on-call schedule. The role is designed for a recent graduate or early-career professional developing database administration expertise through mentorship and hands-on experience.

Administer, maintain, monitor, and optimize Microsoft SQL Server and Oracle databases in a federal enterprise environment. Responsibilities include installation, patching, backup and recovery, performance monitoring, access management, security auditing, SQL development, data migration, documentation, incident response through ServiceNow, disaster recovery testing, and on-call support. The role also supports cloud modernization and AWS migration initiatives.

Administer, maintain, monitor, and optimize Microsoft SQL Server and/or Oracle databases in a federal enterprise environment. Responsibilities include installation, patching, backup and recovery, performance monitoring, access management, security auditing, SQL development, data migration, incident response through ServiceNow, documentation, disaster recovery testing, and on-call support during AWS cloud modernization.

Administer and maintain cloud-hosted databases to ensure availability, performance, backups, security, and monitoring. Support development and operations teams for deployments, tuning, and incident response in a financial services platform.

Administer Microsoft SQL Server databases across on-premises and Azure environments, including configuration, performance tuning, security, backup, recovery, capacity, and availability. Support integrations, APIs, ETL/ELT processes, data pipelines, cloud migrations, modernization, disaster recovery, and data archiving. Provide second-level technical support, documentation, reporting, project participation, and rotational 24/7 on-call coverage.

Provides production database administration and support across Oracle RDS, Aurora PostgreSQL, and Microsoft SQL Server in AWS environments. Responsibilities include incident response, performance tuning, troubleshooting, security hardening, monitoring, backup and recovery, schema changes, ticket management, documentation, and collaboration with application and infrastructure teams. The role supports highly available customer-facing databases and contributes to automation, compliance, reliability, and continuous operational improvement.

Supports MySQL databases, Linux servers, and AWS infrastructure for high-volume gaming platforms. Responsibilities include database administration, monitoring, backups, restores, disaster recovery, replication, patching, performance troubleshooting, production support, and collaboration with development, QA, DevOps, infrastructure, and security teams. The role participates in an on-call rotation after training.

Serve as the primary DBA contact for critical production issues across customized, multi-tenant SQL Server environments. Diagnose performance and availability problems, optimize queries and stored procedures, monitor database health, build alerting and runbooks, maintain test-environment readiness, review database-related code changes, perform backups and patching, and document operational procedures. Collaborate closely with developers while providing production support during US business hours.

Senior Oracle APEX and Database Administrator responsible for design, administration, performance tuning, upgrades, backup/recovery, and lifecycle management of Oracle databases and APEX/ORDS environments across DEV/QA/PROD. Provide Tier 3 support, automation, CI/CD contributions, and coordinate upgrades with cross-functional teams.

Manage, optimize, and secure large-scale databases, work with engineering teams to design and maintain high-performance database systems, and ensure data integrity and security.

As a Database Administrator at Air Apps, you will manage and optimize complex databases, ensuring performance, security, and data integrity while collaborating closely with engineering teams.

The SQL DBA role involves monitoring databases, troubleshooting issues, managing user accounts, and performing daily checks. Responsibilities include adhering to SLAs and documentation, with potential for escalation to a junior DBA role.

Manage and optimize Sybase databases: user access and security, performance tuning, logical/conceptual database design, DBMS installation/testing, backup/recovery, capacity planning, data standards compliance, and collaborate with IT project and development teams.

Perform DB2 v9 production database administration including performance tuning, patching and upgrades. Provide problem-solving and customer-service support for database issues. Collaborate with teams and leverage familiarity with Oracle, MSSQL Server, or Sybase as needed.

The Oracle DBA will manage user accounts, review code, optimize database performance, conduct patching, and coordinate upgrades with DB vendors.