Mainframe Software Development Engineer

Fiserv
Alpharetta, GA

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

Mainframe Software Development Engineer

What does a successful Mainframe Software Development Engineer do at Fiserv?
A successful Mainframe Software Development Engineer at Fiserv designs, develops and maintains high-quality software applications that support business goals and client needs. They work across teams to turn business requirements into technical solutions, while ensuring application performance, reliability and architectural alignment. They also strengthen team delivery by maintaining existing applications, supporting defect analysis and mentoring developers through peer reviews and technical guidance.

What you will do?

  • Lead the design, development and implementation of mainframe software applications that support business goals and client needs.
  • Collaborate with architects, team leads, business analysts and cross-functional partners to gather requirements, translate them into technical specifications and validate design understanding.
  • Develop, code, test and debug applications that meet design and architectural requirements, support system testing and ensure reliable performance.
  • Enhance and maintain existing application software, assess the impact of changes across the application, lead peer reviews and provide ongoing support for internally developed applications.
  • Communicate development status regularly, mentor junior developers and assist the production support team with defect analysis.

What you must have?

  • 5+ years of experience with COBOL, DB2, BMS Maps, VSAM, JCL and IBM Utilities.
  • 5+ years of experience with IBM Mainframes and the TSO/ISPF development environment.
  • 5+ years of experience with Endevor or a similar source control application.
  • 5+ years of experience in software design principles and software architecture.

What would be nice to have?

  • 2+ years of experience with PEP+ Mainframe ACH Software.
  • 1+ year of experience with Agile or Kanban development methodologies and JIRA.
  • 1+ year of experience with IBM DEBUG, File Manager, CLIST or REXX in high-volume transaction processing or financial services environments

Salary Range

$109,000.00 - $182,400.00

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.

Posted 2026-08-14

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