Role: Mainframe Developer
Location: Malvern, PA
Duration: 3+ months (Contract to Hire)
Mainframe Production Support professional to maintain and support batch processing across the mainframe environment. Requires hands-on experience with COBOL, DB2, and JCL, plus working knowledge of Java a strong plus for hybrid environments.
Key Responsibilities
• Execute, monitor, and troubleshoot daily/nightly batch jobs to meet SLA windows
• Provide production support, including incident triage, root cause analysis, and resolution
• Maintain and enhance COBOL programs for defect fixes and small changes
• Support DB2 batch processing and resolve data issues
• Manage job scheduling, restarts/reruns, and coordination with tools like Control-M or CA7
• Support critical production incidents, including on-call/off-hours coverage
• Document runbooks, known issues, and resolution steps
• Partner with application, database, and infrastructure teams to drive permanent fixes
• Support month-end, quarter-end, and year-end batch cycles
• Participate in change management and release activities
Required Qualifications
• 8+ years of experience in mainframe production support with COBOL, DB2, and JCL
• Strong knowledge of batch processing, job scheduling, and z/OS
• Experience with incident management, RCA, and production troubleshooting
• Familiarity with scheduling tools such as Control-M or CA7
• Strong communication and ability to work under pressure
Preferred Qualifications
• Java experience
• ITSM/ServiceNow and ITIL familiarity
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