Advisor, Infrastructure Engineering
Top focus
Calling all innovators – find your future at Fiserv. We’re Fiserv, a global leader in Fintech and payments, and we move money and information in a way that moves the world. We connect financial institutions, corporations, merchants, and consumers to one another millions of times a day – quickly, reliably, and securely.
Any time you swipe your credit card, pay through a mobile app, or withdraw money from the bank, we’re involved. If you want to make an impact on a global scale, come make a difference at Fiserv. Job Title Advisor, Infrastructure Engineering What does a successful Mainframe System Engineer do?
A successful Mainframe System Engineer at Fiserv ensures the availability, reliability, and performance of z/OS environments that support critical client workloads. You will execute z/OS and ISV product upgrades, maintain SMP/E workflows, collaborate with application and vendor teams, and drive continual improvements to mainframe operations.
Your work enables business continuity and meets contractual support obligations
What You Will Do
- Perform z/OS OS and ISV product upgrades and maintenance using SMP/E and z/OS workflows.
- Configure, install, and maintain mainframe system software and vendor products; execute SMP/E and non‑SMP/E installs.
- Troubleshoot and resolve system issues across JES2, JCL, IBM utilities, USS and Parallel Sysplex environments.
- Lead performance tuning, capacity planning, storage management and hardware migration activities.
- Coordinate with vendors and application teams for upgrade planning, testing, and successful production cutovers.
- Produce and approve system documentation, runbooks, test plans, and configuration notes.
- Mentor system programming staff, run technical working sessions, and contribute to modernization efforts (Zowe/Open Mainframe).
- What you will need to have: 8+ years of experience in z/OS system programming and SMP/E-based installations. 8+ years of experience in performing OS and ISV product upgrades and compatibility maintenance. 8+ years of experience with JCL and IBM utilities (IEBGENER, IEBCOPY, AMASPZAP, DFDSS) and JES2 initialization. 8+ years of experience with Unix System Services (USS) and mainframe storage/backup utilities.
- Bachelor’s degree in Computer Science, Information Technology, or a related field, and/or equivalent military experience.
- What would be great to have: 8+ years of experience with Parallel Sysplex, z/VM
- sysplex configuration management. 8+ years of experience with REXX/CLIST scripting and automation for mainframe operations. 8+ years of experience in performance tuning, capacity planning and workload optimization on z/OS. 8+ years of experience with modern mainframe toolchains (Zowe, Open Mainframe) and CI/CD integration. 8+ years of experience coordinating ISV/vendor upgrades and vendor change lifecycle management. #LI-GS1 Thank you for considering employment with Fiserv.
- Please: Apply using your legal name Complete the step-by-step profile and attach your resume (either is acceptable, both are preferable).
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