Mainframe Network Administrator
- Canada
Full-time
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Job details
- Job type
- Full-time
- Posting language
- English
- Posted
Original job description
Key Skills
Mainframe network administration
Session managers CA TPX, CL/SuperSession
VTAM,SNA and TCP/IP on z/OS
Session manager migration experience
ROLE PROFILE
Job Description/ Responsibilities Position Description
The Mainframe Network administrator will manage, support, and modernize the mainframe networking environment. The applicant will design, configure, and support mainframe network infrastructure including VTAM, NCP, SNA, and TCP/IP, and will troubleshoot session-level connectivity and session management functions using CA TPX, CL/SuperSession and related tools. Excellent communication skills are required; previous session management migration experience is a plus.
The candidate will lead and execute the migration of session management and networking tools to updated or consolidated platforms, ensuring session continuity and minimal business disruption. Duties include configuring CA-TPX, CL/SuperSession for session routing, security, and user access; planning, testing, and implementing cutover and rollback strategies; coordinating timelines, dependencies, and risk mitigation with vendor teams and internal stakeholders; monitoring session performance pre/post-migration; and maintaining configuration and procedure documentation. The role also ensures security, audit, and regulatory compliance and provides L2/L3 support on an on-call rotation.
Required Skills
8+ years hands-on mainframe networking
Strong expertise in SNA and TCP/IP protocols
CA TPX, CL/SuperSession configuration, administration, session routing and troubleshooting
Session management tool and network software migration
Session continuity and cutover/rollback planning
VTAM, NCP, Communications Server for z/OS
Troubleshooting, documentation and stakeholder communication
Able to lead migrations end-to-end, including validation
Desired Skills
z/OS and related mainframe operating environments
High expertise in handling tools like CA TPX and CL/Supersession
Migrating to CL/SuperSession from other platforms
Network security protocols and compliance frameworks
Additional Or Advantageous Skills
BFSI, healthcare or large enterprise mainframe estates
Vendor tool transition and vendor coordination
L2/L3 support and on-call rotation
8+ years hands-on mainframe networking
Strong expertise in SNA and TCP/IP protocols
CA TPX, CL/SuperSession configuration, administration, session routing and troubleshooting
VTAM, NCP, Communications Server for z/OS
Able to lead migrations end-to-end, including validation
z/OS and related mainframe operating environments
High expertise in handling tools like CA TPX and CL/Supersession
Migrating to CL/SuperSession from other platforms
Mainframe network administration
Session managers CA TPX, CL/SuperSession
VTAM,SNA and TCP/IP on z/OS
Session manager migration experience
ROLE PROFILE
Job Description/ Responsibilities Position Description
The Mainframe Network administrator will manage, support, and modernize the mainframe networking environment. The applicant will design, configure, and support mainframe network infrastructure including VTAM, NCP, SNA, and TCP/IP, and will troubleshoot session-level connectivity and session management functions using CA TPX, CL/SuperSession and related tools. Excellent communication skills are required; previous session management migration experience is a plus.
The candidate will lead and execute the migration of session management and networking tools to updated or consolidated platforms, ensuring session continuity and minimal business disruption. Duties include configuring CA-TPX, CL/SuperSession for session routing, security, and user access; planning, testing, and implementing cutover and rollback strategies; coordinating timelines, dependencies, and risk mitigation with vendor teams and internal stakeholders; monitoring session performance pre/post-migration; and maintaining configuration and procedure documentation. The role also ensures security, audit, and regulatory compliance and provides L2/L3 support on an on-call rotation.
Required Skills
8+ years hands-on mainframe networking
Strong expertise in SNA and TCP/IP protocols
CA TPX, CL/SuperSession configuration, administration, session routing and troubleshooting
Session management tool and network software migration
Session continuity and cutover/rollback planning
VTAM, NCP, Communications Server for z/OS
Troubleshooting, documentation and stakeholder communication
Able to lead migrations end-to-end, including validation
Desired Skills
z/OS and related mainframe operating environments
High expertise in handling tools like CA TPX and CL/Supersession
Migrating to CL/SuperSession from other platforms
Network security protocols and compliance frameworks
Additional Or Advantageous Skills
BFSI, healthcare or large enterprise mainframe estates
Vendor tool transition and vendor coordination
L2/L3 support and on-call rotation
8+ years hands-on mainframe networking
Strong expertise in SNA and TCP/IP protocols
CA TPX, CL/SuperSession configuration, administration, session routing and troubleshooting
VTAM, NCP, Communications Server for z/OS
Able to lead migrations end-to-end, including validation
z/OS and related mainframe operating environments
High expertise in handling tools like CA TPX and CL/Supersession
Migrating to CL/SuperSession from other platforms
More about this job
Responsibilities
Manage, support, and modernize mainframe networking infrastructure, including configuring session management tools and troubleshooting connectivity. Lead migrations end-to-end, coordinate cutover and rollback plans, validate session continuity and performance, maintain documentation, and provide L2/L3 support while ensuring security and compliance.
Requirements
Requires 8+ years of hands-on mainframe networking experience and strong expertise in SNA, TCP/IP, VTAM, NCP, and CA TPX or CL/SuperSession administration and troubleshooting. Candidates should be able to lead session management and network software migrations, plan and validate cutovers, and communicate effectively with stakeholders.
Skills
- SNA
- TCP/IP
- CA TPX
- CL/SuperSession
- VTAM
- NCP
- Communications Server for z/OS
- Session Routing
- Session Management Migration
- Network Troubleshooting
- Cutover and Rollback Planning
- Migration Validation
- Network Security and Compliance
- Stakeholder Communication
- L2/L3 Support
Visa sponsorship
Not detected in the job text
Categories
- Technology
- Security & Safety
- Management & Leadership
Keywords
- Mainframe Networking
- z/OS
- SNA
- TCP/IP
- CA TPX
- CL/SuperSession
- VTAM
- NCP
- Communications Server for z/OS
- Session Management
- Session Routing
- Network Administration
- Network Troubleshooting
- Platform Migration
- Vendor Coordination
- Cutover Planning
- Rollback Planning
- Migration Validation
- Session Continuity
- Performance Monitoring
- Network Security
- Audit Compliance
- Regulatory Compliance
- Configuration Documentation
- L2/L3 Support
- On-Call Support
- BFSI
- Healthcare