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# Mainframe Network Architect

- **Company:** Ipolarity LLC
- **Location:** Hanover, NJ, United States (Remote available)
- **Contract:** Permanent contract
- **Skills:** Computer Networks, System Configuration, Disaster Recovery, IBM Parallel Sysplex, Job Control Language (JCL), IBM System Z, Job Entry Subsystem 2/3, Network Security, Mainframes, Network Architecture, Routing, Network Administration, Network Protocols, Open Shortest Path First (OSPF), Performance Tuning, System Programming, System Software, Systems Integration, TCP/IP, Transmission Control Protocol (TCP), Z/OS, System Availability, Reliability of Systems, Usage Tracking, Network Support
- **Published:** October 27, 2026
- **Apply:** https://www.careerbuilder.com/job-details/mainframe-network-architect-whippany-nj--1acbab16-fa35-4805-8711-34324d0db2dc

## About the Role

Mainframe Computer, Network Architecture/Engineering, IBM VTAM (Virtual Telecommunications Access Method), TCP/IP (Transmission Control Protocol/Internet Protocol), Mainframe Computer, Network Support, Network Protocols, Network Administration/Management, Network Security, Routing Protocols

## 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, * 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