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 transfer, and hands-on demos.

Support multi-national environments with high-volume transaction workloads.

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