Mainframe z/OS System Programmer

Job Description:

DXC Technology (NYSE: DXC) helps global companies run their mission critical systems and operations while modernizing IT, optimizing data architectures, and ensuring security and scalability across public, private and hybrid clouds. The world’s largest companies and public sector organizations trust DXC to deploy services across the Enterprise Technology Stack to drive new levels of performance, competitiveness, and customer experience. Learn more about how we deliver excellence for our customers and colleagues at DXC.com.

Location: Remote (Canada)

Essential Job Functions

• Install MVS software into the SOS repository and maintain SMPE environments.

• Package and implement software according to established ITIL-aligned change management processes.

• Execute Method of Procedure (MOM) tickets in preparation for scheduled Maintenance IPLs.

• Apply software zaps and license keys for third-party software as required.

• Complete MVS Product Administration Requests and support associated change documentation.

• Perform system recovery tasks during Disaster Recovery drills, including LPAR and CPU recovery processes.

• Build and configure new z/OS systems and LPARs for refresh projects and new deployments.

• Support MVS tasks related to LPAR decommissions, migrations, and CPU swap initiatives.

• Manage software asset records and updates within Asset Center.

• Update and reassemble system exits; process SMF data and maintain OMVS segments and zFS file systems.

• Perform I/O configuration updates (IOGENs) and maintain complex profiles.

• Maintain and implement changes to Coupling Facility and SYSPLEX configurations.

• Support OMVS, USS, and HTTP/WebServer functionality for z/OS environments.

• Provide technical support for zLinux environments, including LPAR creation and maintenance.

• Perform product upgrades, OS upgrades, and CPU hardware refreshes in coordination with infrastructure teams.

• Participate in client and internal audits, addressing findings and performing remediation activities as needed.

• Support client-driven Disaster Recovery exercises with MVS system expertise.

• Develop and maintain automation using REXX, Assembler, and ISPF Dialogs.

Technical Expertise

• Extensive experience in SMPE software management, z/OS builds, and I/O configuration.

• Strong expertise in software installation, packaging, zaps, and product licensing.

• Deep knowledge of z/OS, MVS, and zLinux environments, including system recovery and LPAR lifecycle management.

• Skilled in MVS-related scripting and customization tools such as REXX, Assembler, and ISPF Dialogs.

• Proficient in managing and troubleshooting OMVS, USS, HTTP servers, and zFS systems.

• Experienced in system exit maintenance, SMF data handling, and complex SYSPLEX configurations.

Other Qualifications

• Proven track record supporting incident, problem, and change management workflows.

• Strong analytical and problem-solving skills with the ability to work independently or within a team.

• Excellent documentation skills, particularly with technical changes and audit preparation.

• Familiarity with ITIL processes and best practices for enterprise environments.

• Effective communication skills, capable of interacting with clients, vendors, and cross-functional teams.

• Experience participating in audits and managing vulnerability remediation in regulated environments.

Work Environment

• Primarily remote with on-call support responsibilities on a rotating 24x7 basis.

• Flexible availability required for maintenance windows, DR testing, and unplanned outage support.

• Involves collaboration with global teams, client representatives, and infrastructure partners.

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.

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.