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Mainframe z/OS System Administrator/Programmer
Job Description
Location: Toronto, Canada
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 .
Mainframe z/OS System Administrator/Programmer
We 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 24×7 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.