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# Mainframe System Engineer

- **Company:** Cognizant Technology Solutions Corporation
- **Location:** Topeka, KS, United States (Remote available)
- **Experience:** Expert
- **Salary:** $75,000.0 - $90,000.0
- **Contract:** Permanent contract
- **Skills:** System Configuration, IBM DB2, File Systems, IBM Parallel Sysplex, Mainframes, Performance Tuning, Z/OS, Transport Layer Security, System Availability, ZFS File System
- **Published:** July 3, 2026
- **Apply:** https://www.kansasworks.com/jobs/13606156

## About the Role

We are seeking a highly skilled z/OS Administrator / Mainframe System Engineer to manage and support enterprise mainframe environments. The ideal candidate will have deep expertise in IBM z/OS systems, strong experience in system upgrades, security, performance tuning, and hands-on exposure to advanced mainframe components including encryption, networking, and storage subsystems., + 8+ years of experience in IBM z/OS operating systems

 + Hands-on experience with Parallel Sysplex architecture

 + Proficiency in SMPE (System Modification Program Extende

## Description

This position is also eligible for Cognizant's discretionary annual incentive program, based on performance and subject to the terms of Cognizant's applicable plans.

In this role, you will

 + Administer and maintain IBM z/OS environments (z/OS 3.1 and above) ensuring high availability and reliability

 + Perform mainframe LPAR builds, system configuration, and environment setup

 + Execute z/OS upgrades, including installation of patches, fixes, and system enhancements

 + Install, configure, and maintain ISV products

 + Manage system parameters including PARMLIB maintenance

 + Monitor and analyze system performance using RMF and SMF, and provide performance reports

 + Configure and administer z/OSMF (z/OS Management Facility)

 + Support and maintain Parallel Sysplex environments

 + Manage and resolve z/OS-related incidents and production issues

 + Optimize workload management using WLM

Additional Responsibilities

 + Conduct data review analysis, provide summaries, and recommend improvements

 + Manage certificate inventory and renewal for applications across the environment

 + Configure and validate AT-TLS (Application Transparent Transport Layer Security)

 + Perform ZFS (z/OS File System) operational tasks

 + Analyze and resolve Connect:Direct issues, including configuration and troubleshooting

 + Collaborate with DB2 teams on Precisely POC (Proof of Concept) tasks

 + Implement and manage ICSF (Integrated Cryptographic Service Facility) encryption


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