Role Overview The Mainframe WebSphere MQ & z/OS Systems Programmer is responsible for supporting, maintaining, and upgrading enterprise-scale mainframe environments across high-availability, 24x7 operations. This role ensures stability, security, and performance of WebSphere MQ on z/OS, while also contributing to broader mainframe systems programming activities including RACF security, automation, storage, monitoring, and subsystem upgrades. The ideal candidate brings deep hands-on experience in complex, multi-LPAR environments and has supported major financial institutions and large enterprise clients. Key Responsibilities WebSphere MQ Administration (z/OS) Support, maintain, and troubleshoot WebSphere MQ on z/OS. Plan and execute MQ upgrades (e.G., WMQ V7.0.1 V7.1.0). Design and implement MQ health-check tools (Rexx, CLIST). Integrate MQ with automation tools such as CA-OPS/MVS and SA z/OS . Configure MQ security using RACF , ACF2 , or Top Secret . Mainframe Systems Programming (z/OS) Install, customize, and upgrade z/OS and related subsystems. Perform SMP/E maintenance, rebuild SMP environments, and manage toleration maintenance.



Configure and support CICS, IMS, VTAM, TCP/IP, and other core subsystems. Manage DASD, tape systems, DFSMS, DFSMShsm, and storage utilities. Security & Compliance Review and enhance RACF/ACF2/TSS profiles. Implement mainframe security frameworks for regulated industries (banking, insurance). Conduct audits and produce security reports for compliance (OCC, regulatory bodies). Automation & Monitoring Implement and customize automation environments (SA z/OS, CA-OPS/MVS). Install and configure monitoring tools (OMEGAMON, TMON, MainView). Develop automation exits and scripts to improve system reliability. Programming & Tooling Develop Rexx, Assembler, CLIST, PL/I, COBOL utilities for system automation and reporting. Create JCL for backups, migrations, and maintenance tasks. Build custom tools for performance tuning, forecasting, and operational reporting. Client Support & Delivery Work directly with enterprise clients (banking, telecom, insurance). Provide technical leadership, knowledge

📌 Mainframe Websphere Mq & Z/Os Systems Programmer (Ottawa)
🏢 Nexasphere
📍 Ottawa