Senior Mainframe Developer & Production Support - Remote - 1099

Job Summary We are seeking an experienced Senior Mainframe Developer & Support Specialist with strong expertise in IBM z/OS environments. The role involves designing, developing, enhancing, and supporting mission-critical mainframe applications. The ideal candidate will have deep technical skills in COBOL, DB2, JCL, and CICS, along with experience in production support, incident management, and batch scheduling.

Key Responsibilities Development & Enhancement

• Design, code, test, and deploy applications using COBOL, JCL, and DB2 (including stored procedures).


• Develop and maintain online (CICS) and batch processing systems.


• Work with VSAM files, DB2 databases, and file processing utilities (SORT).


• Ensure code quality, performance optimization, and adherence to coding standards.


• Participate in application modernization and system upgrades where required.

• Provide L2/L3 production support for mainframe applications.


• Troubleshoot and resolve issues related to batch failures, abends, and data inconsistencies.


• Support Tivoli Workload Scheduler (TWS) batch job scheduling and monitoring.


• Perform root cause analysis (RCA) and implement preventive solutions.


• Handle incident, problem, and change management processes.

• Work with IBM MQ for message-based integrations.


• Support CICS transaction flows and troubleshoot transaction-related issues.


• Collaborate with distributed systems teams for end-to-end interface support.

• Use code management tools (e.g., LCM or similar) for version control, migration, and deployment.


• Manage code promotion across environments (DEV, QA, PROD).


• Ensure proper documentation and audit compliance.

• Collaborate with business analysts, developers, QA teams, and infrastructure teams.


• Provide technical guidance and mentoring to junior team members.


• Participate in release planning, code reviews, and design discussions.

• Platform: IBM Mainframe (z/OS)


• Programming: COBOL


• Database: DB2, DB2 Stored Procedures


• Job Control: JCL


• File Handling: VSAM


• Online Systems: CICS


• Schedulers: Tivoli Workload Scheduler (TWS)


• Middleware: IBM MQ


• Utilities: SORT


• Code Management: LCM or equivalent tools


• Other Tools/Knowledge: ZWDYL (or similar framework/tools)

• Experience with Hogan Banking System


• Exposure to mainframe modernization initiatives


• Knowledge of Agile/Scrum methodologies


• Automation and scripting for batch/monitoring improvements

• 8+ years of experience in Mainframe Development & Support


• Strong experience in production support environments (24/7 support model preferred)


• Proven ability to troubleshoot complex system issues


• Bachelor?s degree in Computer Science, Information Systems, or related field

• Strong problem-solving and analytical skills


• Ability to work under pressure in production environments


• Excellent communication and documentation skills


• Team player with mentoring capability

• Require participation in on-call rotation


• Support for batch cycles and critical production windows