Tuyển dụng Mainframe Network Software (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.
• 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.
• Recruiter Screening Focus

For this role, I recommend prioritizing candidates with hands-on experience in

• IBM z/OS Mainframe Networking: VTAM, TCP/IP, APPLID, PU/LU, and OSA.
• IBM NetView: Installation, configuration, REXX, automation, and security.
• SMP/E: Mainframe product installation, upgrades, and maintenance.
• JCL & Batch Processing: NETMENU, CMCMAINT, load libraries, and batch troubleshooting.
• Security & Connectivity: AT-TLS, TLS 1.2, Policy Agent, and Enterprise Extender.
• Production Support: Disaster recovery, z/OS upgrades, and 24/7 on-call rotat