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Sr. Java Developer - Full Stack

Fiserv
Berkeley Heights, United Statesfull_timeVerifiedPosted 14 Nov 2025
💰 $186,000/yr($110,000/yr – $186,000/yr)

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

Sr. Java Developer - Full Stack

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

$110,000.00 - $186,000.00

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Company

Fiserv

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