Mainframe CICS / MQ Engineer

MainframeMaster; Toronto; On-site; CAD 112,000 - 182,000; Full time

Benefits offered by this job

Health insurance

Retirement plan

Paid time off

Job summary

DXC Technology is seeking an experienced Mainframe CICS / MQ Engineer to support and maintain enterprise CICS and MQ environments on z/OS. You will build and upgrade CICS regions, manage MQ subsystems, and participate in DR drills in a regulated environment.

The role requires independent work, strong problem-solving, and a rotating on-call schedule. Toronto, ON, Canada is the primary location.

Qualifications

• Strong experience with CICS Transaction Server on z/OS.
• Working experience with IBM MQ on z/OS and JCL.
• Exposure to RACF/ACF2 or Top Secret and DR planning.

Responsibilities

• Build, configure, upgrade, and support CICS TS regions.
• Maintain IBM MQ subsystems, JCL, and security.
• Participate in 24x7 on-call rotation and disaster recovery activities.

Skills

CICS internals

Tools

IBM MQ on z/OS

JCL

TSO/ISPF

VSAM

RACF

Job description

# Mainframe CICS / MQ EngineerDXC TechnologyFull-timeCAN - ON - TORONTOUSD 80,100 - 130,1000 viewsPosted October 7, 2026## Job DescriptionJob Description: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.About the Team / Offering – Global Infrastructure Services – Infrastructure ServicesDXC Global Infrastructure Services (GIS) manages and modernizes IT infrastructure for the world's largest enterprises through agentic, platform-led operations. We deliver cloud, security, workplace, infrastructure and business-process services that shift operations from reactive support to proactive, outcome-driven service delivery at scale, with human-in-the-loop governance.DXC Infrastructure Services deliver agentic operations through DXC OASIS to manage large‐scale, mission‐critical environments. Autonomous, policy‐governed agents anticipate issues, optimize performance, and support remediation with human‐in‐the‐loop control, shifting operations from reactive support to pre‐emptive, resilient service delivery.About the RoleWe 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, and is critical to ensuring the stability, performance, and security of mission-critical transaction processing systems.In this position, you will be responsible for building, configuring, upgrading, and supporting **CICS** Transaction Server regions, while applying deep knowledge of **CICS** internals, storage protection, and transaction isolation. You will also maintain **IBM MQ** subsystems, troubleshoot complex issues, and support disaster recovery activities to ensure business continuity.This role requires a proactive engineer who can work independently, manage multiple priorities, and participate in a 24x7 on-call rotation (rotating every 2-3 weeks) to support enterprise-critical infrastructure within a regulated, audit-driven environment.Essential Job Functions· Build, configure, upgrade, and support **CICS** Transaction Server regions· Apply 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**, page sets, 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 processesBasic Qualifications· 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 prioritiesOther Qualifications· IBM **Assembler** familiarity (reading code/dumps/exits)· Experience in large enterprise or regulated environmentsWhy DXC? / Life at DXCDXC is an equal opportunity employer. We welcome the many dimensions of diversity. Accommodation of special needs for qualified candidates may be considered within the framework of the DXC Accommodation Policy.In addition, DXC Technology is committed to working with and providing reasonable accommodation to qualified individuals with physical and mental disabilities. If you need assistance in filling out the employment application or require a reasonable accommodation while seeking employment, please e-mail AODA Canada Requests.Note: This option is reserved for applicants needing a reasonable accommodation related to a disability.Compensation at DXC is influenced by an array of factors, including but not limited to the experience, job-related knowledge, skills, competencies, as well as contract-specific affordability and organizational requirements. A reasonable estimate of the current compensation range for this position is $80,100 - $130,100.Full-time hires are eligible to participate in the DXC benefit program. DXC offers a comprehensive, flexible, and competitive benefits program which includes, but is not limited to, health, dental, and vision insurance coverage; employee wellness; life and disability insurance; a retirement savings plan, paid holidays, paid time off.DXC is an equal opportunity employer. We welcome the many dimensions of diversity. Accommodation of special needs for qualified candidates may be considered within the framework of the DXC Accommodation Policy.In addition, DXC Technology is committed to working with and providing reasonable accommodation to qualified individuals with physical and mental disabilities. If you need assistance in filling out the employment application or require a reasonable accommodation while seeking employment, please e-mail AODA Canada Requests.Note: This option is reserved for applicants needing a reasonable accommodation related to a disability.At DXC Technology, we believe strong connections and community are key to our success. Our work model prioritizes in-person collaboration while offering flexibility to support wellbeing, productivity, individual work styles, and life circumstances. We’re committed to fostering an inclusive environment where everyone can thrive.Recruitment fraud is a scheme in which fictitious job opportunities are offered to job seekers typically through online services, such as false websites, or through unsolicited emails claiming to be from the company. These emails may request recipients to provide personal information or to make payments as part of their illegitimate recruiting process. DXC does not make offers of employment via social media networks and DXC never asks for any money or payments from applicants at any point in the recruitment process, nor ask a job seeker to purchase IT or other equipment on our behalf. More information on employment scams is available here.