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Mainframe Dba
Posted on June 5, 2026
- North York, Canada
- 0 - 0 USD (yearly)
- Full Time
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You are as unique as your background, experience and point of view. Here, you’ll be encouraged, empowered and challenged to be your best self. You'll work with dynamic colleagues - experts in their fields - who are eager to share their knowledge with you. Your leaders will inspire and help you reach your potential and soar to new heights. Every day, you'll have new and exciting opportunities to make life brighter for our Clients - who are at the heart of everything we do. Discover how you can make a difference in the lives of individuals, families and communities around the world.
Job Description:
We are looking for a dynamic and motivated individual to play an integral part in our team's mission to provide high quality database administration support to Sun Life clients. Our clients depend on mainframe databases for several key applications and the dependency is expected to continue well into the future.
Provide application-level database administration and support for Db2 for z/OS and IMS databases
Execute and manage Db2 utilities
Perform SQL tuning and optimization to improve application query performance
Support IMS application DBA tasks including DBD (Database Descriptor) changes and modifications
Maintain and execute IMS utilities (Database Image Copy, Database Recovery, Database Reorganization)
Create new database objects or modify existing ones as requested by clients
Ensure databases are available as per service level agreements, meet database integrity and recoverability
Ensure database performance meets client demands through pro-active and reactive monitoring
Manage database storage allocation, space management, and growth monitoring
Execute database refresh and cloning activities for non-production environments
Recommend ways to improve processes, exploit new database features/related tools and reduce cost
Take steps to ensure proper capacity planning, assist with security setup and audit requirements
Assist with data archiving, data masking and test data creation
Database design involvement and recommendations regarding logical to physical model implementations
Support developers with regards to database topics (SQL-queries, IMS DLI calls, tools usage etc.)
Participate in on-call rotation for Db2 for z/OS database support
Excellent communication skills and experience assisting clients with connectivity, permission and access issues
Analytical, problem-solving, detailed skills and ability to produce high-quality deliverables
Organizational, monitoring, multi-tasking skills and ability to escalate to manager when issues arise
Work independently on multiple tasks and priorities simultaneously under high-pressure workloads
Work with team members, technical/team leads, management, IT areas and application support teams to ensure consistent delivery and quality of database services
Ability to evaluate functionality and features with newer versions of the IMS and Db2 DBMS as part of a readiness program
Collaborate with infrastructure teams on cross-functional tasks when needed
Document database configurations, procedures, and best practices
What you need to succeed:
Degree in Computer Science or Technology degree/diploma
5+ years knowledge of IMS and/or Db2 for z/OS (administration, performance, security etc.)
5+ years of Experience with RACF or ACF2
5+ years of JCL skills
Strong experience with DB2 utilities and IMS utilities
Proven experience with SQL query tuning and performance optimization
Proficient in IMS application DBA tasks including DBD maintenance
Experience with peripheral tools and technologies (IBM HP IMS utilities, Broadcom Db2 tools, File Aid, CA-7, ZEKE, REXX etc.)
Knowledge of Mainframe programming languages and MQ and/or Db2 Connect
Scripting experience with REXX (Python scripting highly preferred)
Demonstrated ability to work independently and handle high-pressure workloads
Strong problem-solving and analytical skills
Flexibility to handle multiple concurrent tasks and shifting priorities
Preferred Qualifications:
Experience with Optim data masking and data archive tools
Familiarity with insurance industry applications
Experience with data warehouse environments
Experience with mainframe modernization initiatives
Proficiency with zDevOps tools including:
Zowe
IBM Db2 Admin Foundation
Ansible
Experience with database automation and scripting
Understanding of ITIL or similar service management frameworks
Note: As a condition of the role, the successful candidate must obtain a Government of Canada Reliability Status security clearance through Sun Life.
What's in it for you:
Flexible hybrid work model including in-country work-from-home
Pension, stock and savings programs to help build and enhance your future financial security
An environment of continuous learning and improvement
The Base Pay range is for the primary location for which the job is posted. It may vary depending on the work location of the successful candidate or other factors. In addition to Base Pay, eligible Sun Life employees participate in various incentive plans, payment under which is discretionary and subject to individual and company performance. Certain sales focused roles have sales incentive plans based on individual or group sales results.
Diversity and inclusion have always been at the core of our values at Sun Life. A diverse workforce with wide perspectives and creative ideas benefits our Clients, the communities where we operate and all of us as colleagues. We welcome applications from qualified individuals from all backgrounds.
Persons with disabilities who need accommodation in the application process, or those needing job postings in an alternative format, may e-mail a request to thebrightside@sunlife.com .
We are proud to be a hybrid organization that offers our employees the choice and flexibility to work from both the office and virtually based on the needs of the business, our Clients and you! Several work options are available and can be discussed throughout the selection process depending on the role requirements and individual needs.
We may use artificial intelligence to support candidate sourcing, screening, interview scheduling.
We thank all applicants for showing an interest in this position. Only those selected for an interview will be contacted.
Salary Range:
90,000/90 000 - 140,000/140 000Job Category:
IT - Technology ServicesPosting End Date:
06/06/2026Tailor Your Resume for this Job
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