Senior Mainframe Systems Engineer (zOS Parallel Sysplex, USS & REXX)

Norfolk Southern - Atlanta, GA

Full-time

Atlanta, GA

Rail Transportation

About the position

Norfolk Southern is seeking a highly motivated self-starter as a Mainframe Systems Engineer to oversee and administer our corporate mainframe environment. This role involves supporting a Parallel Sysplex mainframe environment, performance monitoring, tuning, and collaborating with third-party hardware providers to design solutions that ensure high availability environments.

Responsibilities

• Conduct software installation, product support, and zOS administration in sysplex environment.
• Install, maintain, and support mainframe infrastructure and software.
• Monitor and manage mainframe performance.
• Use, configure and provide support of storage subsystems and infrastructure.
• Coordinate with hardware and software vendors for support and future project work.
• Create comprehensive documentation, conduct thorough testing, and follow defined change control processes.
• Provide support for mission critical application infrastructure and products.
• Communicate with end-users, application programmers, co-workers, managers, and other stakeholders.
• Participate in team rotational on-call support.
• Write test scripts and perform testing verification of product deliverables.

Requirements

• 4 years experience with mainframe z/OS internals, z/OS Parallel Sysplex, Unix Systems Services (USS) or SMP/E.
• 4 years experience with mainframe hardware, software and third-party installation support.
• Experience in mainframe capacity planning and performance tuning.
• Experience writing test scripts and performing testing verifications.
• Experience with mainframe application development IDE build and run tools.

Nice-to-haves

• Unix System Services and zOS operating system experience.
• Experience with z/OS internals, TCP IP/VTAM, TSO/ISPF, REXX.
• Knowledge of Infrastructure software solutions (e.g., Zeke, Zebb, ISPW, TMON, JCLPrep, QuickRef, SAS, CICS, IBM utilities).
• Maintain a Coupling Facility environment.