Mainframe Network Architect

IPolarity; United States; Remote; USD 120,000 - 180,000; Full time

Job summary

IPolarity is seeking a Mainframe System/Network Architect (z/OS) for a remote role. You will lead installation, configuration, and upgrades of z/OS environments, design Sysplex integrations, CFRM policies, and drive performance and DR readiness across development and production systems.

The ideal candidate has deep z/OS system programming experience, expertise with LPAR, SMP/E, JCL, and ISV software, and can collaborate with application teams to ensure stability and security while guiding teams

Qualifications

• Strong experience in z/OS System Programming and Sysplex configuration.
• Expertise with CFRM, LPAR management, and ISV software integration.
• Hands-on with SMP/E, IOCP, HCD, PARMLIB, and system configurations.

Responsibilities

• Lead installation, configuration, and upgrading of z/OS environments across development and production systems.
• Design and manage z/OS architecture, Sysplex integration, and CFRM policies.
• Handle hardware and software upgrade projects, including datacenter migration and exit planning.
• Perform performance analysis, tuning, capacity planning, and workload management (WLM).
• Monitor system software access, performance, and resource utilization.
• Manage and maintain z/OS, JES3 environments and ISV software.
• Work closely with application teams to ensure production stability and issue resolution.
• Define and enforce security, access control, and software usage policies.
• Implement and validate backup, recovery, and disaster recovery (DR) procedures.

Skills

Mainframe networking

z/OS system programming

Sysplex configuration

LPAR management

JCL

Tools

SMP/E

IOCP

HCD

PARMLIB

JES3

Job description

Mainframe System / Network Architect (z/OS) - Remote

Mainframe Networking & Infrastructure:

• Manage and support Mainframe Networking Protocols: SNA, VTAM, TCP/IP
• Configure and maintain OSA (Open System Adapter) networking interfaces
• Strong understanding of Enterprise Network Infrastructure and Security
• Knowledge of routing protocols such as Open Shortest Path First (OSPF)
• Manage z/OS network communications, connectivity, and performance optimization

System Programming & Architecture Skills:

• Strong experience in z/OS System Programming and System z architecture
• Expertise in Sysplex configuration, LPAR management, and system integration
• Hands-on with SMP/E, IOCP, HCD, PARMLIB, and system configurations
• Install and maintain z/OS releases, RSU maintenance, and ISV products
• Knowledge of JCL, utilities, batch and online processing environments

Key Responsibilities:

• Lead installation, configuration, and upgrading of z/OS environments across development and production systems
• Design and manage z/OS architecture, Sysplex integration, and CFRM policies
• Handle hardware and software upgrade projects, including datacenter migration and exit planning
• Perform performance analysis, tuning, capacity planning, and workload management (WLM)
• Monitor system software access, performance, and resource utilization
• Manage and maintain z/OS, JES3 environments and ISV software
• Work closely with application teams to ensure production stability and issue resolution
• Define and enforce security, access control, and software usage policies
• Implement and validate backup, recovery, and disaster recovery (DR) procedures
• Ensure high availability, system reliability, and environment stability
• Support incident/problem determination and resolution within SLA timelines
• Provide technical leadership, mentoring, and guidance to teams

This is a remote position.