Cognizant is seeking a Mainframe z/OS specialist for a full-time remote opportunity. Qualified candidates must be in located in the US. Cognizant will only consider applicants for this position who are legally authorized to work in the United States without requiring employer sponsorship, now or at any time in the future.
The Mainframe z/OS Support professional is responsible for providing operational, administrative, and production support for IBM z/OS mainframe systems. The role ensures system stability, availability, performance, and compliance while supporting business‑critical batch and online workloads in an enterprise environment.
Responsibilities:
Mainframe z/OS Operations & Support
- Provide L2/L3 support for IBM z/OS systems.
- Monitor system health, availability, and performance.
- Handle system alerts, production incidents, abends, and outages.
- Troubleshoot z/OS system issues and perform root cause analysis (RCA).
System Administration & Maintenance
- Support and administer z/OS components including:
- JES2 / JES3
- TSO / ISPF
Batch & Workload Management
- Monitor batch job processing and resolve failures.
- Support workload scheduling tools (e.g., CA‑7, Control‑M, OPC/TWS).
- Analyze JCL errors and correct execution issues.
- Coordinate with application teams for job and system dependencies.
- Ensure systems comply with security, audit, and regulatory requirements.
- Participate in major incident bridges and post‑incident reviews.
- Ensure SLA compliance and proper documentation.
- Provide call and after‑hours production support as required.
Qualifications:
Technical Skills
- Strong experience with IBM z/OS
- Hands‑on knowledge of:
- TSO/ISPF, SDSF
- JCL and batch processing
- JES2/JES3
- SMF/RMF analysis
Soft Skills
- Strong analytical and troubleshooting skills.
- Good communication and coordination abilities
Experience Level
- 4 –6 years, depending on role level (L2/L3)
At Cognizant, we are eager to meet people who believe in our mission and can make an impact in various ways! We strongly encourage you to apply even if you only meet the required skills listed. Consider what transferable experience and skills make you an outstanding applicant and help us see how you would be helpful in this role.
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 a remote position. The salary range for this role is between $79,000 and $92,000 will be determined by the skills and experience level of the candidate. Applications will be accepted till 5/5/2026. Regardless of your working arrangement, we are here to support a healthy work-life balance though our various wellbeing programs.
What we offer
- The chance to work with impact. Here, you’re empowered to bring your biggest thinking to help our company and clients improve everyday life.
- Ownership over your career. Stay at the top of your game through our award-winning learning and development ecosystem. And when your ambitions change or we offer new opportunities, we help you pivot by providing reskilling, on-the-job learning and guidance to find new roles that might be a better fit.
- The opportunity to thrive on a high caliber team with heart. We celebrate each other’s experiences and perspectives and promote a sense of belonging through our affinity groups and diversity and inclusion initiatives.
- A comprehensive total rewards package, including a competitive salary and a pension plan with matching contributions.
- Flexible health and financial benefits to support you and your eligible dependents—from day one.
- True work-life balance. Be at your best through paid time off, flexible work arrangements, volunteering opportunities, social events, and so much more.
About us
Cognizant (Nasdaq: CTSH) is an AI Builder and technology services provider, building the bridge 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, realize tangible returns and keep global enterprises ahead in a fast-changing world. See how at www.cognizant.com or @cognizant.
Other employment-related information
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, provincial 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] with your request and contact information.
Language requirements vary depending on roles, but we ask that all candidates have basic English proficiency for company-wide communications purposes. For roles based in Quebec, professional English proficiency is required, as you’ll deliver services to and collaborate with stakeholders outside the province who may not speak French.