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 solid 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.

📌 Senior Mainframe Developer – PL/I,IMS, JCL (Vancouver)
🏢 Astra North Infoteck
📍 Vancouver