Position: Database Administrator (DBA)

Location: Toronto, ON

Job ID#: RQ11438

Duration: 12 Months

Role Overview The Database Administrator (DBA) is responsible for providing operational support, administration, maintenance, monitoring, and optimization of database environments supporting critical enterprise applications and services. The role ensures the availability, integrity, security, recoverability, and performance of databases across multiple technology platforms, including Microsoft SQL Server, IBM DB2, and Oracle environments.

This position works closely with application support teams, infrastructure teams, developers, vendors, and project stakeholders to support both legacy and modernized enterprise systems in highly available and mission-critical environments.

Key Responsibilities

Operational Database Support

- Provide day-to-day operational support for enterprise applications and associated database environments.
- Monitor database health, availability, performance, storage utilization, and system reliability.
- Perform proactive troubleshooting and resolution of database-related incidents and service requests.
- Support production, test, development, disaster recovery, and high-availability environments.
- Participate in on-call support, after-hours maintenance, and emergency incident resolution as required.

Database Administration & Maintenance

- Administer, configure, patch, upgrade, and maintain database platforms including:

- Microsoft SQL Server
- IBM DB2 (z/OS and Windows/Linux)

- Oracle Database environments

- Perform database installations, migrations, refreshes, cloning, and environment setup activities.
- Maintain backup, recovery, and disaster recovery procedures to ensure business continuity.
- Manage database security, user access, roles, permissions, encryption, and compliance requirements.
- Conduct database capacity planning and storage management activities.

Performance Monitoring & Optimization

- Analyze and tune database performance, queries, indexes, execution plans, and system resources.
- Identify and resolve bottlenecks affecting application performance and stability.
- Implement monitoring and alerting solutions to proactively manage system health.




- Support high-availability technologies including clustering, failover, and replication solutions.

Change, Release & Workplace Management

- Support change management, deployment, and release activities following ITIL practices.
- Coordinate database changes with infrastructure, application, and vendor teams.
- Develop and maintain operational documentation, procedures, runbooks, and support knowledge articles.
- Participate in technical reviews, root cause analysis, and post-incident activities.

Project & Modernization Support

- Provide technical expertise for application modernization, migration, and infrastructure upgrade initiatives.
- Support cloud, virtualization, and hybrid infrastructure initiatives where applicable.
- Collaborate with development and architecture teams on database design and implementation strategies.
- Assist with technology lifecycle management and platform upgrade planning.

Supported Technologies & Environments

Microsoft SQL Server

- SQL Server 2019, 2022, and 2025

- Windows Server Platforms

- SQL Clustering

- Failover Configurations

- AlwaysOn Availability Groups

IBM DB2

- DB2 v13 on z/OS (Mainframe)

- DB2 on Windows
- DB2 on Red Hat Linux (RHEL)

Oracle

- Oracle 11g and Oracle 19c

- Oracle Multitenant Architecture

- Oracle Enterprise Manager (OEM)
- Red Hat Linux (RHEL) Platforms

Required Skills & Experience

- Experience administering enterprise database environments including SQL Server, Oracle, and/or DB2.
- Strong knowledge of database backup/recovery, performance tuning, monitoring, and troubleshooting.
- Experience supporting high-availability and disaster recovery solutions.
- Knowledge of Windows Server, Linux (RHEL), and/or Mainframe environments.
- Experience with database security, access controls, and operational best practices.




- Familiarity with ITIL processes, incident management, change management, and release management.
- Strong analytical, problem-solving, and communication skills.
- Ability to work independently and collaboratively within cross-functional teams.

Preferred Qualifications

- Experience supporting large-scale government or enterprise applications.
- Knowledge of cloud technologies and hybrid infrastructure environments.
- Experience with automation and scripting for database administration tasks.
- Relevant certifications in Microsoft SQL Server, Oracle, IBM DB2, or related technologies.
- Experience with monitoring and enterprise management tools.

Deliverables & Outcomes

- Ensure stable, secure, and reliable database operations for all supported applications.
- Maintain database availability and performance in accordance with operational service levels.
- Deliver timely resolution of incidents, problems, and operational requests.
- Support ongoing modernization and continuous improvement initiatives.
- Maintain accurate operational documentation and technical procedures.

About Symbiotic Digital. Symbiotic Digital provides the IT Experts you need that solve problems and get things done. See what the top 2% in their field can do for you. (Symbiotic Digital is a division of Symbiotic Group Inc.)

We serve customers in two ways, we provide:

1. Digital Experts: IT Consulting expertise. Bright Minds That Produce Proven Results
2. Recruitment: Find The Right People You Need

Serving IT & Business leaders, Symbiotic Digital provides a business system that enable us to provide the Expert Technical staff needed to solve challenging business and IT problems. IT leaders in the most reputable organizations in Canada have relied on Symbiotic Digital to help them staff difficult assignments with proven Experts uniquely evaluated by our proven QMS- Quality Management System Staff Development Model. We are a 100% Indigenous owned company. Learn more online at https://www.symbioticgroup.com/home-sd/.

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📌 Database Administrator (DBA) (London)
🏢 Symbiotic Digital
📍 London