IBM Mainframe Administrator

Position

Description:

We are Canada's largest independent information technology services firm, and after 45 years, we're still growing! Join Canada's largest IT Company as a "IBM Mainframe Administrator" in our Banking Services Division.

We are seeking an experienced IBM Mainframe Administrator with 8–10 years of hands-on expertise in mainframe technologies and enterprise systems. The ideal candidate will have strong technical skills, problem-solving capabilities, and the ability to work in a dynamic environment.

Location - Downtown (Hybrid - 3 to 4 days office and remaining remote)

Your future duties and responsibilities:

• Provide support for IBM z15 hardware and operating environments.

• Monitor, maintain, and troubleshoot mainframe subsystems and related components.

• Ensure system uptime, reliability, and performance in 24/7 enterprise environments.

• Install, configure, and maintain CICS Transaction Server regions.

• Support and optimize CICS applications, transactions, and system definitions (RDO).

• Manage CICS performance tuning, debugging, and transaction analysis.

• Ensure compliance with security, audit, and operational standards.

• Configure, administer, and optimize IBM MQ queue managers, channels, and queues.

• Manage MQ security, SSL configurations, clustering, and message routing.

• Troubleshoot message flow issues and ensure reliable integration between applications.

• Support IMS DB and IMS TM environments, including database maintenance and transaction management.

• Perform IMS system updates, tuning, and performance optimization.

• Assist application teams with IMS database access, utilities, and transaction debugging.

Required qualifications to be successful in this role:

• 8–10 years of experience in IBM mainframe administration.

• Strong knowledge of IBM Mainframe Z15

• Expertise in CICS, MQ, IMS, COBOL, and JCL.

• Proven experience in system performance tuning and issue resolution.

• Excellent analytical, communication, and documentation skills.

• Ability to work independently and in a team-oriented, fast-paced environment.

• Language:
English (bilingual in English and French is an asset).

** CGI is providing a reasonable estimate of the pay range for this role. The determination of this range includes factors such as skill set level, geographic market, experience and training, and licenses and certifications. Compensation decisions depend on the facts and circumstances of each case. A reasonable estimate of the current range is $95,–$,. This role is an existing vacancy.

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Skills: