Senior Software Engineer

Fiserv

Fiserv

Software Engineering
Milwaukee, WI, USA
Posted on Jul 3, 2025

Our software engineers at Fiserv bring an open and creative mindset to a global team developing mobile applications, user interfaces and much more to deliver industry-leading financial services technologies to our clients. Our talented technology team members solve challenging problems quickly and with quality. We're seeking individuals who can create frameworks, leverage developer tools, and mentor and guide other members of the team. Collaboration is key and whether you are an expert in a legacy software system or are fluent in a variety of coding languages you're sure to find an opportunity as a software engineer that will challenge you to perform exceptionally and deliver excellence for our clients.

  • Full-time
  • Entry, Mid, Senior
  • Yes (occasional), Minimal (if any)
  • Glassdoor: 64%

Responsibilities

Requisition ID R-10366968 Date posted 07/02/2025 End Date 07/18/2025 City Milwaukee State/Region Wisconsin Country United States Location Type Onsite

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 Software Engineer

TITLE: Senior Software Engineer

EMPLOYER: Fiserv Solutions, LLC

LOCATION: Milwaukee, WI (and various unanticipated locations throughout the US subject to authorization from management)

DUTIES: Design and implement payment gateway integrations for processing thousands of transactions a second. Architect based on new requirements to support new features and rearchitect the existing system. Design and implement RESTful APIs for payment devices. Own the features and components from development through deployment and verification, to setting up production monitoring. Perform production support services as part of a regular on call rotation. Conduct future proof payment services through scalability and re-design of key components. Refactor code to be more maintainable and testable. Test drive development and unit testing.

REQUIREMENTS: Bachelor's degree in Computer Science, Engineering, Information Technology or a related field and 7 years in any job title involving experience working with Java. Prior experience must include the following: 4 years of REST API design or RESTful services; 4 years designing, implementing and maintaining complex, distributed software systems; 3 years working with RDBMS, Oracle, or MySQL database; and 2 years working with Spring Boot framework.

TO APPLY: Email resume to: Fiserv.Recruitment_Resume@fiserv.com. Reference JOB CODE CR522.

#P3M

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

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 AskHR.US@fiserv.com. 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.

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Benefits

  • Medical, Vision and Dental Benefits

    Comprehensive benefit plans to suit your unique needs

  • Fuel Your Life Wellness Program

    Resources to elevate your well-being

  • 401k, Employee Stock Purchase Plans and Incentives & Bonuses

    When Fiserv performs well, so does your financial health

  • Employee Resource Groups

    Celebrating inclusion in the workplace

  • Providing the time off to manage personal needs