Role Overview The Mainframe Web

Sphere MQ & z/OS Systems Programmer is responsible for supporting, maintaining, and upgrading enterprisescale mainframe environments across highavailability, 24x7 operations.

This role ensures stability, security, and performance of Web

Sphere 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 handson experience in complex, multiLPAR environments and has supported major financial institutions and large enterprise clients.

Key Responsibilities Web

Sphere MQ Administration (z/OS) Support, maintain, and troubleshoot Web

Sphere MQ on z/OS.

Plan and execute MQ upgrades (e.g., WMQ V7.0.1 V7.1.0).

Design and implement MQ healthcheck tools (Rexx, CLIST).

Integrate MQ with automation tools such as CAOPS/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, CAOPS/MVS).

Install and configure monitoring tools (OMEGAMON, TMON, Main

View).

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 transfer, and handson demos.

Support multinational environments with highvolume transaction workloads.

📌 Mainframe WebSphere MQ & z/OS Systems Programmer (Ottawa)
🏢 Nexasphere
📍 Ottawa