Mainframe Network Architect

IPolarity LLC

2d•$60 - $60•Remote

About The Position

The Mainframe System / Network Architect (z/OS) is responsible for mainframe networking and infrastructure, z/OS system programming, and architecture. The role manages z/OS environments across development and production, including networking, system integration, upgrades, performance, security, reliability, and disaster recovery. It also provides technical leadership and collaborates with application teams to maintain production stability and resolve issues. This is a remote position.

Requirements

Strong experience in z/OS system programming and System z architecture.
Expertise in Sysplex configuration, LPAR management, and system integration.
Hands-on experience with SMP/E, IOCP, HCD, PARMLIB, and system configurations.
Strong understanding of enterprise network infrastructure and security.
Knowledge of routing protocols such as OSPF.
Knowledge of JCL, utilities, and batch and online processing environments.

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 resolve issues.
Define and enforce security, access control, and software usage policies.
Implement and validate backup, recovery, and disaster recovery procedures.
Ensure high availability, system reliability, and environment stability.
Support incident and problem determination and resolution within SLA timelines.
Provide technical leadership, mentoring, and guidance to teams.
Manage and support SNA, VTAM, and TCP/IP networking protocols.
Configure and maintain OSA networking interfaces.
Manage z/OS network communications, connectivity, and performance optimization.
Install and maintain z/OS releases, RSU maintenance, and ISV products.