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Mainframe System Engineer

Job

Cognizant

Remote

$82,500 Salary, Full-Time

Posted 2 days ago (Updated 2 hours ago) • Actively hiring

Expires 8/5/2026

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Job Description

Mainframe System Engineer at Cognizant in Little Rock, Arkansas, United States Job Description

Job Title:

z/OS Administrator / Mainframe System Engineer

Job Location:

Remote- USA Please note, this role is not able to offer visa transfer or sponsorship now or in the future•Role Overview 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.

Salary and Other Compensation:

The annual salary for this position is between $75,000 to $90,000 depending on experience and other qualifications of the successful candidate. 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 What you'll need to succeed (required skills) + 8+ years of experience in IBM z/OS operating systems + Hands-on experience with Parallel Sysplex architecture + Proficiency in SMPE (System Modification Program Extende To view full details and how to apply, or