Cognizant
z/OS Administrator
Job at a glance
- Workplace
- On-site
- Employment
- Full-time
- Sector
- Engineering & Technology
- Posted
- October 21, 2026
- First found
- October 21, 2026, 6:34 PM ET
Cognizant is hiring a z/OS Administrator in Hartford, Connecticut, United States. Posted October 21, 2026.
Apply ↗About the job
About the group:
Cognizant’s Cloud, Infrastructure, and Security Services Practice (CIS), is all about accepting digital transformation by driving core modernization holistically across layers. We help customers transform infrastructure and workplace to meet the constantly evolving needs of the digital era. Our broad approach delivers key results for our customers by achieving cloud driven modernization and workplace and operational transformation to own the business in a secure environment.
Role Title: z/OS Administrator
Location: Remote
Roles and Responsibilities:
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Extremely familiar with IBM z/OS operating system(up to z/OS 3.1 and above)
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Knowledge on Parallel Sysplex concepts
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Experience mainframe LPAR builds
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Strong experience in zOS version upgrades
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Installation of patches and fixes
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Installation and maintenance of ISV products
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System parameters/parmlib maintenance
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Managing incidents on z/OS related issues
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zOS MF configuration and setup
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z/OS performance monitoring and reporting
****Mandatory Skills:
• Technical Skills – z/OS, Parallel Sysplex, SMPE, RMF, SMF, WLM, Understanding of System z architecture, zOSMF
Compensation: We are offering between $85,000 – $92,000. Applications will be accepted until Oct 30, 2026.Cognizant will only consider applicants for this position who are legally authorized to work in US without requiring employer sponsorship, now or at any time in the future.
Disclaimer: The salary, other compensation, and benefits information is accurate as of the date of this posting. Cognizant reserves the right to modify this information at any time, subject to applicable law.