Senior Mainframe Systems Programmer (z/OS-Network)

Sorry, this job was removed at 10:23 p.m. (CST) on Thursday, Nov 13, 2025
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2 Locations
In-Office or Remote
128K-216K Annually
eCommerce • Fintech • Information Technology • Payments • Financial Services
At Fiserv, we aspire to move money and information in a way that moves the world.
The Role

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

Senior Mainframe Systems Programmer (z/OS-Network)

About your role:

In this role you will be responsible for the installation, configuration, maintenance, and administration of TCP/IP, VTAM Unix System Services and portions of z/OS.  You will also participate in Disaster Recovery exercises, support governance requirements and audits and work with capacity and performance teams in proactively addressing potential performance issues impacting service levels.

What you’ll do:

  • Install and maintain Connect:Direct (NDM), MSM and InterTest Batch utilizing SMP/E
  • Design and develop utilities (REXX) to streamline processes
  • Support a redundant TCPIP network for a Parallel Sysplex by making use of Dynamic VIPA and Sysplex Distributor and HiperSockets
  • Support non-shared USS file system in a Shared File system accessible by all LPARs within a Sysplex
  • Support and diagnose AT-TLS configurations
  • Troubleshoot started task abends utilizing IPCS
  • Apply Ciphers and license certificates
  • Resolving network connection issues utilizing packet traces

Experience you'll need to have:

  • 9+ years of experience with the z/OS mainframe communications experience
  • 7+ years of experience with TCP/IP, DNS, DHCP, and possess a deep understanding of core networking protocols as well has hands on Cisco routers and switches
  • 7+ years of experience configuring and managing secure data transmissions with firewalls and VPNs
  • 7+ years of experience with JCL, UNIX Shell, IBM system utilities, and network monitoring tools
  • Bachelor's degree in a related field or an equivalent combination of education, military, and work experience

Experience that would be great to have:

  • Cloud networking familiarity with hybrid cloud environments and Z integration
  • Experience in the financial services industry or other highly regulated industries

How you'll work:

  • This role requires being on-call during non-standard and/or overnight hours on a rotational basis
  • This role requires use of a computer and audio equipment

#zOS

#IBM

#WeAreMainframe

#SystemsProgramming
#IBM

Salary Range

$128,000.00 - $216,000.00

These pay ranges apply to employees in New Jersey and New York. Pay ranges for employees in other states may differ.

It is unlawful to discriminate against a prospective employee due to the individual's status as a veteran.

For incentive eligible associates, the successful candidate is eligible for an annual incentive opportunity which may be delivered as a mix of cash bonus and equity awards in the Company’s sole discretion.

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).

Our commitment to Equal Opportunity:

Fiserv is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, gender, gender identity, sexual orientation, age, disability, protected veteran status, or any other category protected by law. 

If you have a disability and require a reasonable accommodation in completing a job application or otherwise participating in the overall hiring process, please contact [email protected]. Please note our AskHR representatives do not have visibility to your application status. Current associates who require a workplace accommodation should refer to Fiserv’s Disability Accommodation Policy for additional information.

Note to agencies:

Fiserv does not accept resume submissions from agencies outside of existing agreements. Please do not send resumes to Fiserv associates. Fiserv is not responsible for any fees associated with unsolicited resume submissions.

Warning about fake job posts:

Please be aware of fraudulent job postings that are not affiliated with Fiserv. Fraudulent job postings may be used by cyber criminals to target your personally identifiable information and/or to steal money or financial information. Any communications from a Fiserv representative will come from a legitimate Fiserv email address.

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The Company
HQ: Milwaukee, WI
41,000 Employees
Year Founded: 1984

What We Do

Fiserv, Inc. (NYSE: FI) is a leading global provider of payments and financial services technology solutions, driving innovation in payments, processing services, risk and compliance, customer and channel management, and business insights and optimization. For more information, visit www.fiserv.com.

Why Work With Us

As a global leader in payments and financial technology, we proudly serve clients in more than 100 countries. As one of Fortune® magazine's "World's Most Admired Companies™" 9 of the last 10 years, one of Fast Company’s Most Innovative Companies, and a top scorer on Bloomberg’s Gender-Equality Index, we are committed to innovation and excellence.

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