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- Full-time
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DXC Technology

Mainframe CICS / MQ Engineer

Toronto, ON, Canada

Full-time

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Job details

Job type: Full-time
Posting language: English
Posted: Oct 7, 2026

Original job description

Job 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 Services

DXC 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 Role

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, 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 processes

Basic 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 priorities

Other Qualifications

· IBM Assembler familiarity (reading code/dumps/exits)

· Experience in large enterprise or regulated environments

Why DXC? / Life at DXC

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.

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.

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.

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More about this job

Responsibilities

The engineer will build, configure, and maintain enterprise CICS Transaction Server regions and IBM MQ subsystems on z/OS. They are responsible for troubleshooting complex issues, supporting disaster recovery, and participating in a 24x7 on-call rotation.

Requirements

Candidates must have strong experience with CICS Transaction Server and IBM MQ on z/OS, along with proficiency in MVS tools like JCL and TSO/ISPF. Familiarity with security tools such as RACF or ACF2 and experience in regulated enterprise environments are required.

Skills

CICS Transaction Server
IBM MQ
z/OS
JCL
TSO/ISPF
SDSF
VSAM
RACF
ACF2
Top Secret
Disaster recovery
IBM Assembler
System programming
Distributed queue management
Root-cause analysis

Benefits

Health insurance
Dental insurance
Vision insurance
Employee wellness program
Life insurance
Disability insurance
Retirement savings plan
Paid holidays
Paid time off

Visa sponsorship

Not detected in the job text

Keywords

Mainframe
CICS
MQ
z/OS
System Programming
Transaction Processing
MVS
TSO
ISPF
JCL
SDSF
VSAM
RACF
ACF2
Top Secret
Disaster Recovery
IBM Assembler
Infrastructure Services
Audit
Change Management
PTF
HIPER
MRO
ISC
Distributed Queue Management

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