Jobs and Careers
FI

Senior Backend Developer (Core Application)

Fiserv
Jacksonville, United Statesfull_timeVerifiedPosted 12 May 2025

About 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 Backend Developer (Core Application)

What does a successful Senior Backend Developer (Core Application) do at Fiserv? 

Finxact is an innovative enterprise-class 100 percent open API cloud-native innovation platform and transaction processing engine. It is agnostic to asset classes, currencies, and time zones, catering to banking, fintech, and embedded finance sectors. Finxact offers scalability with adaptiveness to change, harnessing the cloud's resiliency and elasticity to design and launch new products with agility and precision without technology upheaval. You will be working in an application design and development role on the Finxact Core as a Service platform. You will be creating new software and enhancing existing software to provide banking and financial institution services.

What you will do:

  • Work with business analysts, engineers, and other system users to understand and implement their application requirements
  • Work with partners to understand their implementations and gain a breadth of knowledge in cloud-based SaaS implementations and technologies
  • Provide quality software, improve test coverage and the overall quality of the systems
  • Mentor other employees in software development best practices and engineering disciplines.

What you will need to have:

  • 5+ years of direct financial industry experience in software application development for information technology, loan servicing, deposit operations or card processing
  • 5+ years of experience working in Core Banking processes and Software development, and CRM systems
  • 5+ years of experience with RESTful services, Swagger, Json data interchange, and GIT
  • 5+ years of technical analysis, design, and development experience
  • Bachelor’s degree in computer science, engineering, or a related field, or an equivalent combination of education, work, or military experience

What would be great to have:

  • Golang programming experience
  • Ability to execute on time-sensitive project deliverables
  • Experience analyzing and interpreting data, as well as discussing business and technical topics
  • Ability to coordinate multiple tasks to completion with minimal supervision and under strict deadline

Important info about this role:

  • We’re better together. This role is fully on-site.
  • In order to be considered, you must be legally authorized to work in the U.S. without need for sponsorship now or in the future.
  • This is a full-time, direct-hire position, and no contract options for unsolicited agency submissions will be considered.

#LI-IH1

This role is not eligible to be performed in Colorado, California, District of Columbia, Hawaii, Illinois, Maryland, New York, Nevada, Rhode Island or Washington.

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

Please note that salary ranges provided for this role on external job boards are salary estimates made by outside parties and may not be accurate.

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 AskHR.US@fiserv.com. Please note our AskHR representatives do not have visibility to your application status. Current associates who require a workplace accommoda

Apply for this role

Generate a tailored application kit with a matched cover letter, interview prep, and CV highlights — in under 60 seconds.

Apply Now →Generate Application Kit

Free account required — sign up in 30s

Company

Fiserv

View company profile →