Mainframe Developer

Replication Design & ImplementationDesign, install, configure, and maintain DB2 replication solutions across mainframe and distributed platformsBuild and manage source-to-target replication pipelinesConfigure replication components:o Capture processeso Apply processeso Control serversImplement:o Unidirectional and bidirectional replication setupso Real-time and near-real-time data synchronization solutionsTroubleshooting & Support· Troubleshoot and resolve:o Data inconsistencieso Replication failureso Queue backlogso Network interruptions· Perform root cause analysis and implement corrective actions· Provide L2/L3 support for production incidentsPerformance Optimization· Tune replication processes to:o Reduce latencyo Optimize resource utilizationo Minimize impact on source systems· Optimize:o Data capture efficiencyo Apply performanceo Network usageIntegration & Data Architecture· Support integration across:o DB2 z/OS and DB2 LUW systemso Distributed databases, message queues, and ETL platforms· Work closely with:o DBAso Application teamso Data engineering and BI teamsRequired Qualifications:· Experience with:o DB2 for z/OSo ZDIHo MIPS reduction / optimization projectso UNIX system service including installing patch on UNIXo UNIX scriptingo RACF· Hands-on experience with replication technologies:o IBM InfoSphere Data Replication (IIDR) / CDCo Q Replication (preferred)· Knowledge of:o Replication architecture and data flow designo Change Data Capture (CDC) concepts· Strong troubleshooting skills in:o Data consistency issueso Performance and replication latency· Experience with:o JCL, TSO/ISPF, SDSFo Mainframe batch and online environmentsPreferred Experience:· Familiarity with:o MQ / messaging systemso ETL and data warehousing platforms· Experience with:o Monitoring toolso Automation (REXX, Python, scripting)· Exposure to:o Cloud or hybrid data architectures· Experience in:o Large-scale data migration or modernization programso Real-time data streaming architectures