Mainframe Developer (Toronto)

Role:Mainframe Developer – Application Enhancements, Support & Decommissioning Location:Toronto, ON – Hybrid Contract Role Role DescriptionsJob SummaryWe are looking for an experienced Mainframe Developer to support application enhancements, production support, and decommissioning initiatives within a complex enterprise environment.

The role requires strong expertise in legacy systems, data management, and operational stability while contributing to modernization and retirement of applications.

The ideal candidate will have hands on experience in PL/I, DB2, IMS, and JCL, along with solid analytical and troubleshooting skills.

Job RequirementsDesign, develop, and implement enhancements to existing mainframe applications based on business requirements.

Write, maintain, and optimize PL/I programs and JCL for batch and online processing.

Work with DB2 and IMS databases for data processing, querying, and performance tuning.

Provide Level 2/3 production and application support, including batch job monitoring, incident resolution, and root cause analysis.

Ensure smooth execution of batch processes using scheduling tools such as Control-M and support change, incident, and problem management activities using tools like HPSM and JIRA.

Utilize mainframe development and deployment tools such as ISPW for code management and promotion.

Analyze legacy applications to identify decommissioning opportunities, including dependency mapping and impact analysis.

Support data archival, migration, and validation as part of application retirement initiatives.

Execute decommissioning activities in compliance with regulatory and data retention requirements.

Collaborate with cross functional teams and document system changes, processes, and decommissioning activities.#J-18808-Ljbffr