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)

Requisition IDR-10376830Date posted11/14/2025End Date12/19/2025CityBerkeley HeightsState/RegionNew JerseyCountryUnited StatesLocation TypeOnsite

Responsibilities

Requisition IDR-10376830

Date posted11/14/2025

End Date12/19/2025

CityBerkeley Heights

State/RegionNew Jersey

CountryUnited States

Location TypeOnsite

Sr. Java Developer - Full Stack$110,000.00 - $186,000.00

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

What does a Sr. Java Developer - Full Stack do at Fiserv?

We are looking for a Sr. Java Developer to work on frontend as well as backend applications for ACH payments processing. We are looking for a great team player with strong understanding of technology and having good communications.

What you will do:

  • Participate in architectural discussions, proposing solutions that are scalable, resilient, and maintainable.

  • Design and implement robust data models, considering data integrity and security.

  • Apply design patterns like Event Sourcing, and Microservices to solve complex problems.

  • Design and develop robust RESTful APIs using Spring Boot framework, incorporating best practices like dependency injection, AOP, and reactive programming.

  • Integrate with various data sources (relational databases, NoSQL databases) using Spring Data JPA and other persistence mechanisms.

  • Develop robust data processing pipelines using Spring Batch or similar frameworks.

  • Implement authentication and authorization mechanisms using industry standard frameworks and approaches.

  • Package applications into Docker containers for deployment on Kubernetes Service like AKS, PKS etc.

  • Manage Kubernetes deployments, scaling, and monitoring using Kubernetes controllers and Helm charts.

  • Leverage Azure services like Azure Storage, Azure Cosmos DB, Azure Functions, and Azure Event Hubs as needed.

What you will need to have:

  • Bachelor’s degree in Computer Science, Engineering, or a related field.

  • 10-15 years of relevant experience.

  • Strong proficiency in Java, with a deep understanding of core Java concepts and design patterns.

  • Extensive experience with Spring Boot, Spring MVC, Spring data, and Spring Security.

  • Familiarity with at least one popular JavaScript framework (React, node) and proficiency in HTML, CSS.

  • Expertise in Docker containerization and Kubernetes orchestration.

  • Experience with relational databases (Oracle, DB2, SQL Server).

  • Understanding of CI/CD pipelines, automated testing, and infrastructure as code.

What would be great to have:

  • Understanding of Payments domain

  • Knowledge of Azure platform, including AKS, Azure Storage, Azure Cosmos DB, and other relevant services.

  • Experience with messaging systems like Apache Kafka. Familiarity and ability to work on frontend development.

  • Knowledge of distributed caching mechanisms (Redis, Memcached).

  • Understanding of security best practices for cloud-based applications.

How you will work:

  • This role is on-site Monday through Friday. Fiserv considers in-person collaboration to be an essential part of this role as in-person office experiences help you with your overall onboarding experience and leads to stronger productivity.

  • You must currently possess valid and unrestricted U.S. work authorization to be considered for this role. Individuals with temporary visas including, but not limited to, F-1 (OPT, CPT, STEM), H-1B, H-2, or TN, or any candidate requiring sponsorship, now or in the future, will not be considered for this role.

  • This is a full-time, direct-hire position, and no contract options for unsolicited agency submissions will be considered.

  • All offers of employment are contingent on standard background checks. Fiserv and certain of its affiliated companies are federal, state, and/or local government contractors. Should this position support a Federal Government contract, now or in the future, the successful candidate will be subject to a background check conducted by the U.S. Government to determine eligibility and suitability for federal contract employment for public trust or sensitive positions. Positions that support state and/or local contracts also may require additional background checks to determine eligibility and suitability.

Salary Range

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.

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.

Unique Suite of Solutions#FiservProudCorporate Social ResponsibilityGlobal LeadershipUnique Suite of Solutions#FiservProudBenefits

  • 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

  • Paid Time Away

    Providing the time off to manage personal needs