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.