Job Title: z/OS Administrator
Job Location: Hybrid [3 days in Office]- Hartford, CT, USA.
Other Location: St Paul, Minnesota/ Cockeysville, MD
** Please note, this role is not able to offer visa transfer or sponsorship now or in the future**
Role Overview
We are seeking an experienced z/OS Administrator / Mainframe System Engineer to support enterprise mainframe environments. The ideal candidate will have deep expertise in IBM z/OS systems, strong experience with system upgrades, performance tuning, and incident management, and a solid understanding of System z architecture.
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 system stability and availability
Perform mainframe LPAR builds, configurations, and environment setup
Manage and execute z/OS upgrades, including version upgrades, patches, and system fixes
Install, configure, and maintain ISV (Independent Software Vendor) products
Maintain and manage system parameters including PARMLIB configurations
Monitor system performance using tools such as RMF and SMF, and generate performance reports
Configure and manage z/OSMF (z/OS Management Facility)
Provide support for Parallel Sysplex environments, ensuring high availability and system integrity
Handle incident management and troubleshooting for z/OS-related issues
Support workload management using WLM (Workload Manager) and optimize resource allocation
What you’ll need to succeed (required skills)
8+ years of experience in mainframe system administration or z/OS engineering
Demonstrated expertise in large-scale enterprise environments Strong expertise in IBM z/OS operating systems
Proven experience with Parallel Sysplex architecture
Hands-on experience with SMPE (System Modification Program Extended)
Proficiency in RMF (Resource Measurement Facility) and SMF (System Management Facility)
Knowledge of WLM (Workload Manager)
Solid understanding of IBM System z architecture
Experience with zOSMF configuration and administration
Hands-on experience in z/OS system upgrades and maintenance
Expertise in ISV product installation and support
Preferred Skills
Experience with enterprise-level mainframe infrastructure support
Strong troubleshooting and performance tuning experience in high-availability environments
Familiarity with incident management processes and tools
Ability to work in client-facing roles and support critical business applications
Benefits: Cognizant offers the following benefits for this position, subject to applicable eligibility requirements:
- Medical/Dental/Vision/Life Insurance
- Paid holidays plus Paid Time Off
- 401(k) plan and contributions
- Long-term/Short-term Disability
- Paid Parental Leave
- Employee Stock Purchase Plan
Work model:
At Cognizant, we strive to provide flexibility wherever possible, and we are here to support a healthy work-life balance though our various wellbeing programs. Based on this role’s business requirements, this is hybrid role requiring 3 days a week at the client site in Hartford, CT, USA.
The working arrangements for this role are accurate as of the date of posting. This may change based on the project you’re engaged in, as well as business and client requirements. Rest assured; we will always be clear about role expectations.
We're excited to meet people who share our mission and can make an impact in a variety of ways. Don't hesitate to apply, even if you only meet the minimum requirements listed. Think about your transferable experiences and unique skills that make you stand out as someone who can bring new and exciting things to this role.
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.
“Cognizant is an equal opportunity employer. Your application and candidacy will not be considered based on race, color, sex, religion, creed, sexual orientation, gender identity, national origin, disability, genetic information, pregnancy, veteran status or any other characteristic protected by federal, state or local laws.
About Cognizant:
Cognizant (Nasdaq: CTSH) is an AI Builder and technology services provider, bridging the gap between AI investment and enterprise value by building full-stack AI solutions for our clients. Our deep industry, process and engineering expertise enables us to build an organization’s unique context into technology systems that amplify human potential, drive tangible outcomes and keep global enterprises ahead in a fast-changing world. See how at cognizant.ai or @cognizant.
Additional employment information
Compensation 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.
Applicants may be required to attend interviews in person or by video conference. In addition, candidates may be required to present their current state or government issued ID during each interview.
Cognizant is an equal opportunity employer. Your application and candidacy will not be considered based on race, color, sex, religion, creed, sexual orientation, gender identity, national origin, disability, genetic information, pregnancy, veteran status or any other characteristic protected by federal, state or local laws.
If you have a disability that requires reasonable accommodation to search for a job opening or submit an application, please email [email protected] for roles based in the Americas or [email protected] for roles based in India.
