- Provide 247 production support for mainframe applications, managing and resolving P1P4 incidents in accordance with agreed SLAs
- Act as the escalation point (AMS Level 3) for complex incidents, problems, and application failures
- Perform root cause analysis and drive permanent problem resolution to reduce incident recurrence
- Pinpoint and remediate chatty or breaking transactions in hybrid application flows using App Performance Monitoring (APM) tools
- Design, develop, and maintain mainframe applications, including COBOL batch and online programs (CICS/IMS DC).
- Must have experience in Netron Framework.
- Execute application change requests, enhancements, and break/fix remediation within Change Management controls
- Lead and contribute to COBOL upgrade activities (VS COBOL through to IBM COBOL V6), including code retrofit, unit testing, system testing, and integration testing
- Manage application DB maintenance including DB2, IMS DB, and VSAM file structures
- Develop and maintain up-to-date application documentation, including functional logic, data lineage, and system schematics
- Support and evolve CI/CD pipeline activities within the DevOps on Zlifecycle including static code analysis, automated unit testing, regression testing, and deployment to test, staging, and production environments
- Utilise GitHub with IBM DBBor GitHub with Endevor (Webhook/Git Bridge) for source code management