The Opportunity

We are looking for a Java Full Stack Developer to design, build, and scale mission‑critical digital payment applications powering UPI Global platforms.

This role offers the prospect to work on real‑time, high‑volume, secure financial systems that operate at national scale, directly impacting millions of users across India. You will work end‑to‑end on modern full‑stack architectures, collaborating closely with product, QA, and platform teams.

Job Details
Role: Java Full Stack Application Engineer
Department: Product – Technology
Experience: 2 to 6 Years
Employment Type: Full‑time | Permanent
Education: BE / BTech or equivalent skilled qualification
Location: Mumbai
Work Mode: 5 Days Work From Office (WFO)

Key Responsibilities
Design and develop scalable RESTful APIs using Java, Spring Boot, and Hibernate/JPA for UPI Global applications
Build and maintain microservices-based architectures, integrating with internal and external payment systems
Develop responsive, high-performance frontend applications using React.js, Redux,



and JavaScript / TypeScript
Ensure seamless frontend–backend integration for real-time payment workflows
Work with event-driven systems (Kafka) for asynchronous transaction processing
Implement secure authentication and authorization using OAuth2, JWT, and industry best practices
Optimize applications for performance, scalability, reliability, and security
Write unit and integration tests, and participate in code reviews to maintain engineering standards
Actively participate in Agile ceremonies and collaborate with cross-functional teams

Requirements
Key Skills & Experience Required
Robust expertise in Java 8+ and above, including core programming constructs such as streams, collections, multithreading, concurrency, and functional programming, along with a working understanding of JVM internals such as memory model, garbage collection, and class loading
Hands‑on experience with Spring

📌 Associate Application Developer Mumbai (India)
🏢 NPCI
📍 India