Senior Mainframe Developer – PL/I, DB2, IMS, JCL

Senior Mainframe Developer – PL/I, DB2, IMS, JCL

Location: Canada – Remote

Experience Required: 8-10 years

Skills: Digital : Guidewire PolicyCenter | Mainframe DB2 - Application Development | System Z - JCL

Job Summary We 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 strong analytical and troubleshooting skills.

Job Requirements Design, 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.

Required Qualifications Bachelor’s degree in Computer Science, Information Technology, or a related field.

4-7 years of experience in mainframe development and support roles.

Strong hands‑on experience with: PL/I

DB2

IMS

JCL

Experience with tools such as: Control-M

ISPW

HPSM

JIRA

Experience in application enhancements and production support.

Knowledge of batch processing and job scheduling tools.

Strong analytical, troubleshooting, and problem‑solving skills.

Preferred Skills Experience with mainframe application decommissioning or modernization initiatives.

Familiarity with Guidewire ClaimCenter (added advantage).

Understanding of insurance domain.

Exposure to Agile delivery models.

Experience with data migration and archival strategies.

Key Competencies Strong attention to detail and quality focus.

Excellent communication and collaboration skills.

Ability to manage multiple priorities and deadlines.

Proactive problem-solving and critical thinking.

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