Demo

Senior Java Developer

Fiserv
Berkeley, NJ Full Time
POSTED ON 4/9/2026
AVAILABLE BEFORE 5/8/2026
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 Java Developer

About Your Role

As a Senior Java Developer, you will be part of the engineering team that builds the Marketplace Boarding platform, designed to deliver innovations through simple and fast integrations. This platform features developer-friendly, flexible communication standards, unified APIs, and integrations with multiple systems within and outside Fiserv. You will deliver end-to-end solutions to automate and simplify Merchant Boarding to Fiserv systems.

What You'll Do

  • Collaborate with a highly energetic team of software developers across different countries to meet Fiserv's business goals
  • Analyze complex processes and technological heterogeneity in applications, and design software solutions in the real-time Merchant boarding process
  • Design and develop microservices for highly efficient protocol translation and enrichment with reactive design patterns
  • Develop high throughput and high-volume boarding APIs that can be consumed by various banks and payment gateways
  • Enhance API solutions to offer simple, easy-to-consume APIs for Merchant Boarding and Maintenance platform

Experience You'll Need To Have

  • 6 years of experience in Java, GIT, JIRA, Maven, Confluence, Spring framework: Core, Boot, MVC, AOP
  • 6 years of experience implementing complex full-stack solutions including API and microservices in large enterprise organizations
  • 4 years of experience with databases and code integrations such as Oracle, SQL Server, MySQL
  • 4 years of experience with Amazon applications like ELB, SQS, SES, SWF, SNS, and Dynamo DB
  • 4 years of experience creating unit tests using JUnit, Mockito
  • 3 years of experience in Agile methodologies
  • Bachelor’s degree in computer science or a relevant field, or an equivalent combination of education, work, or military experience

Experience That Would Be Great To Have

  • Experience in Play Framework, Apache Camel
  • Experience in the payments industry and implementing high-volume transactions processing applications
  • Experience using Quality and Security scan tools such as SonarQube, Fortify, and WebInspect
  • Experience in Integration Testing APIs with Postman, JMeter
  • Experience with OAUTH2.0, Jax-B, Jax-RS

How You’ll Work

  • Fiserv emphasizes in-person collaboration to help you grow your career while shaping the future of fintech; this role is on-site Monday through Friday.

Sponsorship

  • In order to be considered, you must be legally authorized to work in the U.S. without need for visa sponsorship now or in the future.

Benefits At Fiserv

  • Fuel Your Life program to support your physical, financial, social, and emotional well-being
  • Paid holidays and generous time away policies
  • No-cost mental health support through Employee Assistance Programs
  • Living Proof program to recognize your peers’ extra effort with points redeemable for rewards
  • Eight Employee Resource Groups to foster a collaborative culture and expand your network
  • Unparalleled professional growth with training, development, and internal mobility opportunities

Salary Range

$110,000.00 - $186,000.00

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 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.

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.

Salary : $110,000 - $186,000

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