Mainframe z/OS System Administrator/Programmer

Toronto, ON
Permanent
Full-time

1 month ago

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 .Mainframe z/OS System Administrator/ProgrammerWe are seeking an experienced Mainframe z/OS System Administrator/Programmer to support enterprise z/OS environments, including system builds, software installation, upgrades, migrations, and disaster recovery activities.Key Responsibilities

Install and maintain z/OS (MVS) software using SMP/E
Perform software packaging, zaps, PTFs, HIPERs, and product upgrades
Support Maintenance IPLs, system refreshes, migrations, and CPU swaps
Execute LPAR builds, decommissions, and zLinux LPAR creation
Perform Disaster Recovery drills and system recovery activities
Maintain Coupling Facility / Sysplex, IOGENs, and I/O configurations
Manage OMVS / USS / zFS, web server and HTTP activities
Update and reassemble system exits
Process SMF data and maintain system profiles
Apply software license keys and maintain asset records
Participate in audits, vulnerability remediation, and change management
Provide 24x7 on‑call support as part of a rotation

Required Skills

Strong experience with z/OS System Programming
Expertise with SMP/E, software installation, and maintenance
Experience with DR, IPLs, migrations, and hardware refreshes
Knowledge of Sysplex, Coupling Facility, IOGENs
Familiarity with OMVS / USS / zLinux
ITIL processes: Incident, Problem, Change, Asset Management
REXX, Assembler, and ISPF dialog scripting experience

Nice to Have

zLinux SME experience
Large enterprise or regulated environment background

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 .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 .

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