Mainframe Network Software (Canada)
DXC Technology · Canada · 4d 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 dxc.com.
Must be legally authorized to work in Canada without requiring sponsorship now or in the future
Note: Must be legally authorized to work in Canada. The client is in a controlled goods program environment and must comply with the Controlled Goods Program (CGP), which mandates that all applicants hold Canadian Citizenship or Permanent Residency status in Canada.
Key Responsibilities
1. Mainframe Network Resource Management
- Maintain and administer mainframe logical network resources within IBM z/OS environments.
- Perform weekly Network Management System (NMS) database updates for CDRSC/JES2 corporate table distributions.
- Perform weekly NETMENU maintenance, including additions, deletions, changes, and updates to load libraries.
- Maintain and update VTAM network definitions, configurations, and connectivity tables.
- Process NetView user ID requests, including additions, deletions, and modifications.
- Manage TCP/IP port reservations, including additions, deletions, and changes.
- Perform VTAM APPLID and PU/LU updates to support application and network connectivity requirements.
2. Network Connectivity and Configuration
- Implement, configure, customize, and maintain new OSA (Open Systems Adapter) interfaces and network connectivity.
- Implement and configure Enterprise Extender connectivity for mainframe network communication.
- Configure and maintain secure Telnet and FTP connectivity.
- Implement and customize Policy Agent, AT-TLS (Application Transparent Transport Layer Security), and TLS 1.2 connectivity.
- Troubleshoot and resolve network configuration issues related to VTAM, TCP/IP, and mainframe connectivity.
- Ensure network configurations comply with operational and security requirements.
3. NETMENU and Batch Processing
- Perform scheduled weekly NETMENU updates, including additions, deletions, and changes.
- Apply and update load libraries to incorporate network configuration changes, fixes, and maintenance updates.
- Utilize IBM utilities, JCL (Job Control Language), batch jobs, and procedures to execute network maintenance activities.
- Perform weekly CMCMAINT and batch job processing.
- Review and correct batch jobs and processes supporting mainframe software maintenance and VTAM table distribution across SMCs.
- Support troubleshooting and implementation of changes to ensure successful processing and distribution.
4. Disaster Recovery and Mainframe Upgrade Support
- Participate in client disaster recovery exercises to validate mainframe network readiness and recovery procedures.
- Provide network support during z/OS upgrades and system maintenance activities.
- Support CPU hardware refresh initiatives, including network configuration validation and connectivity testing.
- Perform FIXLIB updates and corrections required for mainframe software support.
- Assist in identifying and resolving issues affecting network operations during upgrades and hardware refreshes.
5. SMP/E Software Installation and Administration
- Perform Software Management Program/Extended (SMP/E) installations, upgrades, maintenance, and configuration of IBM and third-party mainframe products.
- Administer program products, including additions, modifications, and deletions.
- Install, upgrade, and maintain software products using SMP/E.
- Support software packaging, maintenance implementation, and configuration activities.
- Troubleshoot software installation and maintenance issues within the mainframe environment.
6. IBM NetView and Network Management Tools
- Install, upgrade, maintain, and configure IBM NetView.
- Develop and maintain REXX routines to automate network management and operational tasks.
- Configure and support automated alerts for network events and operational monitoring.
- Administer NetView Security Interface (NETSSI) for command processing authority.
- Support network automation and administration using NWA1500 – Network Automation & Toolbox.
- Maintain and support mainframe network session management and access tools, including: CA NetSpy Session Managers.TPX and CL/Supersession.NetView Access MVS (NVAS) .NET-PASS (NET/PROC).NC-Access MVS and NC-NIM MVS.NCI/XF.VTAM/Switch/MVS.Intersession Menu.NetView Access V2 MVS (NWA1500).
7. Incident, Problem, and Change Management
- Manage and resolve incidents, problems, and change requests in accordance with ITIL processes.
- Participate in software asset management activities and product lifecycle administration.
- Investigate and troubleshoot mainframe network incidents and connectivity issues.
- Document technical changes, maintenance activities, and incident resolutions.
- Collaborate with internal teams and clients to implement approved changes and maintain service availability.
8. Audit, Compliance, and Vulnerability Remediation
- Participate in client and internal audits related to mainframe network operations and security.
- Support the identification, assessment, and remediation of audit findings and security vulnerabilities.
- Implement corrective actions in accordance with security policies and compliance requirements.
- Maintain appropriate technical documentation and evidence of remediation activities.
9. 24/7 On-Call Support
- Participate in a rotating 24/7 on-call support schedule.
- Provide technical support for critical mainframe network incidents and connectivity issues.
- Troubleshoot and resolve production-related issues within established service-level agreements (SLAs).
- Coordinate with technical teams and stakeholders during critical incidents and planned maintenance activities.
Required Qualifications and Technical Skills
- Experience supporting IBM z/OS mainframe environments and enterprise network infrastructure.
- Hands-on experience with VTAM, TCP/IP, IBM NetView, and mainframe network management.
- Knowledge of CDRSC, JES2, APPLIDs, PU/LU definitions, and mainframe logical network resources.
- Experience with JCL, IBM utilities, batch jobs, procedures, and load library maintenance.
- Experience implementing and maintaining OSA interfaces and Enterprise Extender connectivity.
- Knowledge of secure Telnet, FTP, Policy Agent, AT-TLS, and TLS 1.2.
- Experience with SMP/E software installation, upgrades, configuration, and maintenance.
- Familiarity with REXX scripting and NetView automation.
- Understanding of ITIL processes, including Incident, Problem, Change, and Software Asset Management.
- Experience supporting disaster recovery exercises, z/OS upgrades, and hardware refresh initiatives.
- Ability to participate in rotating 24/7 on-call support.
Preferred Qualifications
- Experience supporting enterprise or client-facing mainframe infrastructure.
- Knowledge of NetView security administration and command processing authorization.
- Experience with mainframe session managers and network access tools.
- Experience supporting audit findings and vulnerability remediation.
- Strong troubleshooting, analytical, documentation, and communication skills.
- Ability to work independently while collaborating with cross-functional technical teams.
Work Environment
- Remote to Canada
- Must be legally authorized to work in Canada without requiring sponsorship now or in the future
Note: Must be legally authorized to work in Canada. The client is in a controlled goods program environment and must comply with the Controlled Goods Program (CGP), which mandates that all applicants hold Canadian Citizenship or Permanent Residency status in Canada.
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.
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