Mainframe IBM MQ Engineer

We are seeking an experienced Mainframe IBM MQ Engineer with strong hands-on expertise in IBM MQ for z/OS to support highly available, business-critical mainframe environments. The ideal candidate will have extensive experience in IBM MQ administration, configuration, monitoring, security, performance tuning, troubleshooting, and lifecycle management. This role requires close collaboration with application development, CICS, IMS, networking, security, operations, and mainframe infrastructure teams to ensure reliable messaging and seamless application communication., IBM MQ Administration & Configuration Install, configure, administer, and support IBM MQ for z/OS environments. Create, configure, and maintain queue managers, local and remote queues, transmission queues, channels, listeners, and other MQ objects. Perform routine MQ administration, monitoring, maintenance, and operational support. Configure and maintain distributed queuing between queue managers. Administer and troubleshoot IBM MQ clusters and messaging infrastructure. Monitoring & Troubleshooting Monitor queue depths, channel status, queue manager availability, message flow, and overall infrastructure health. Troubleshoot channel failures, queue manager issues, message delivery problems, and messages remaining on queues. Resolve connectivity issues, security and authorization failures, and application-to-MQ communication problems. Perform problem determination and root cause analysis for production incidents. Support MQ recovery, restart, and service restoration activities. Security & Connectivity Implement and maintain MQ security in collaboration with security and RACF teams. Configure and troubleshoot channel authentication, connection authentication, TLS, and MQ access controls, where applicable. Support TCP/IP connectivity and secure communication between applications and queue managers. Maintain reliable MQ integration with mainframe applications and enterprise infrastructure. Performance, Maintenance & Resiliency Analyze MQ performance and implement tuning recommendations. Support MQ upgrades, migrations, patching, maintenance, and lifecycle management. Support high availability, disaster recovery, and business continuity requirements. Develop and maintain JCL, automation scripts, operational procedures, and technical documentation. Participate in production implementations, change management, incident management, and problem management. Provide on-call and after-hours support for critical production issues as required. Application & Infrastructure Integration Support IBM MQ integration with CICS and IMS applications. Collaborate with application, network, security, operations, and systems programming teams. Support MQ communication across complex enterprise mainframe environments. Ensure reliable messaging services for high-volume, business-critical applications.

Strong hands-on experience with IBM MQ for z/OS. Strong knowledge of: Queue Managers Local and Remote Queues Transmission Queues MQ Channels and Channel Initiators Listeners and Dead Letter Queues Distributed Queuing MQ Clustering MQ Security MQ Logging and Recovery MQ Monitoring and Troubleshooting Strong working knowledge of IBM z/OS. Experience developing and maintaining JCL. Good understanding of TCP/IP and network connectivity. Experience troubleshooting MQ issues and supporting production environments. Experience supporting high-volume, business-critical mainframe systems. Understanding of change, incident, and problem management processes. Preferred Technical Skills CICS and IBM MQ integration IMS and IBM MQ integration RACF security administration TCP/IP networking REXX scripting TSO/ISPF SDSF SMP/E software maintenance IBM Sysplex environments MQ Queue Sharing Groups Automation and monitoring tools Enterprise scheduling tools such as CA7 or TWS Disaster recovery and business continuity Performance monitoring and capacity management Managed File Transfer (MFT)