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

**Date:** Nov 21, 2025

**Location:** Atlanta, GA, US, 30308

**Company:** Norfolk Southern Corp.

Norfolk Southern offers a unique opportunity to be part of our proud legacy that spans nearly 200 years. We are a customer-centric, operations-driven team dedicated to advancing safety, serving communities, and driving innovation for tomorrow's rail. As part of Norfolk Southern, you’ll join a collaborative team where there are opportunities for growth across the organization. We are building a culture where everyone can thrive by owning and driving exceptional results, being humble and leading with trust, serving our customers with excellence, and collaborating and coaching to win.

Job Description

Norfolk Southern is seeking a highly motivated self-starter as a Mainframe Systems Engineer to oversee and administer our corporate mainframe environment. As a Mainframe System Engineer, you will be supporting a Parallel Sysplex mainframe environment, performance monitoring, tuning, collaborating with third party hardware providers in designing solutions to produce 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.

+ Writing test scripts and performing testing verification of product deliverables.

Education

Bachelor’s degree in technology, MIS, CIS or other related degrees preferred. Will consider experience in lieu of college degree.

Job Related Experience

+ Minimum Level: 4 years

+ Preferred Level: 5+ years

Skills Required

+ 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 mainframe capacity planning and performance tuning.

+ Experience writing test scripts and performing testing verifications.

+ Experience with mainframe application development IDE build and run tools.

Skills Desired

+ Unix System Services and zOS operating system

+ Experience with z/OS internals, TCP IP/VTAM, TSO/ISPF, REXX

+ Maintain and operate within a Parallel Sysplex environment including sharing of DASD.

+ Knowledge of Infrastructure software solutions, (ex. Zeke, Zebb, ISPW, TMON, JCLPrep, QuickRef, SAS, CICS, IBM utilities)

+ Maintain a Coupling Facility environment.

Work Conditions

Environment: Hybrid (3 days in office; 2 days remote)

Shift Work: No

On-Call: Yes

Weekend Work: No

Company Overview

Since 1827, Norfolk Southern Corporation (NYSE: NSC) and its predecessor companies have safely moved the goods and materials that drive the U.S. economy. Today, it operates a customer-centric and operations-driven freight transportation network. Committed to furthering sustainability, Norfolk Southern helps its customers avoid 15 million tons of yearly carbon emissions by shipping via rail. Its dedicated team members deliver more than 7 million carloads annually, from agriculture to consumer goods, and is the largest rail shipper of auto products and metals in North America. Norfolk Southern also has the most extensive intermodal network in the eastern U.S., serving a majority of the country’s population and manufacturing base, with connections to every major container port on the Atlantic coast as well as the Gulf of Mexico and Great Lakes. Learn more by visiting www.NorfolkSouthern.com .

At Norfolk Southern, we believe in celebrating our individuality. By leveraging the unique backgrounds and viewpoints of our employees, we can create a culture of innovation, respect, and inclusion. We know that employees thrive in a workplace where differing viewpoints, ideas, and experiences are freely shared and valued. As such, we encourage all employees to contribute their distinctive skills and capabilities to our organization.

Equal employment opportunities are available to all applicants regardless of race, color, religion, age, sex, national origin, disability status, genetic information, veteran status, sexual orientation, and gender identity. Together, we power progress.