Mainframe Developer

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 activitiesRequired 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 pressurePreferred Qualifications• Java experience• ITSM/ServiceNow and ITIL familiarity