Mainframe System Engineer

• 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

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 Extended)
• Experience with RMF (Resource Measurement Facility) and SMF (System Management Facility)
• Strong knowledge of WLM (Workload Manager)
• Solid understanding of IBM System z architecture
• Experience with zOSMF configuration and administration
• Proven experience in z/OS upgrades, patching, and maintenance
• Expertise in ISV product installation and lifecycle management

Preferred Skills

• Experience working in large-scale enterprise mainframe environments
• Strong troubleshooting skills across networking, security, and storage layers in z/OS
• Familiarity with encryption technologies and secure communications (ICSF, AT-TLS)
• Experience supporting file systems and data transfer tools (ZFS, Connect:Direct)
• Exposure to DB2 ecosystem and integration tools (Precisely)

The annual salary for this position is between $75,000 to $90,000 depending on experience and other qualifications of the successful candidate., 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 a Remote Role in 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.