Mainframe CICS / MQ Engineer

DXC Technology•Toronto, ON

57d

About The Position

DXC Technology (NYSE: DXC) is a leading enterprise technology and innovation partner delivering software, services, and solutions to global enterprises and public sector organizations — helping them harness AI to drive outcomes at a time of exponential change with speed. With deep expertise in Managed Infrastructure Services, Application Modernization, and Industry-Specific Software Solutions, DXC modernizes, secures, and operates some of the world’s most complex technology estates. Learn more on dxc.com. We are seeking an experienced Mainframe CICS / MQ Engineer to support and maintain enterprise CICS and MQ environments on z/OS. This role focuses primarily on CICS system programming, with strong hands‑on responsibility for IBM MQ subsystems.

Requirements

Strong experience with CICS Transaction Server on z/OS
Working experience with IBM MQSeries / IBM MQ on z/OS
MVS tools: TSO/ISPF, JCL, SDSF, IBM & VSAM utilities
Exposure to RACF, ACF2, or Top Secret
Disaster Recovery experience (backup, restore, DR drills)
Ability to work independently and manage multiple priorities

Nice To Haves

IBM Assembler familiarity (reading code/dumps/exits)
Experience in large enterprise or regulated environments

Responsibilities

Build, configure, upgrade, and support CICS Transaction Server regions
Strong knowledge of CICS internals, storage protection, transaction isolation, and RENTPGM
Support CICS inter‑region communication (MRO, ISC)
Install and support vendor products running within CICS
Perform troubleshooting, service restoration, and root‑cause analysis
Support Disaster Recovery planning, testing, and execution
Maintain IBM MQ subsystems, JCL, pagesets, channels, buffer pools, and security
Install, upgrade, and apply PTFs/HIPERs for MQ environments
Support MQ security, audits, and distributed queue management
Participate in 24x7 on‑call rotation
Follow change management and audit processes