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Mainframe System​/Network Architect; z​/OS

Job in Charlotte, Mecklenburg County, North Carolina, 28202, USA
Listing for: Apolis
Full Time position
Listed on 2026-07-03
Job specializations:
  • IT/Tech
    Systems Engineer, Systems Administrator, IT Infrastructure
Job Description & How to Apply Below
Position: Mainframe System / Network Architect (z/OS)

Mainframe System / Network Architect (z/OS)

Remote Cog KitBGV must be cleared to start

What are the top 3 skills required for this role?

  • z/OS Architecture & Sysplex Integration
  • Mainframe Networking (SNA, VTAM, TCP/IP, OSA, OSPF)
  • Mainframe Infrastructure & Performance Engineering
Job Description / Responsibilities

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

14.00 Years of Experience

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