National Payments Corporation Of India (NPCI)
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Mumbai · On-site · 3-6 Yrs · Sep 24
Financial Transaction Processing · 1001 to 5000 Employees · Mumbai, India
National Payments Corporation of India (NPCI), an umbrella organisation for operating retail payments and settlement systems in India, is an initiative of Reserve Bank of India (RBI) and Indian Banks’ Association (IBA) under the provisions of the Payment and Settlement Systems Act, 2007, for creating a robust Payment & Settlement Infrastructure in India. NPCI, during its journey in the last seven years, has made a significant impact on the retail payment systems in the country. Dedicated to the nation by our former President, Shri Pranab Mukherjee, endorsed by the Hon’ble Prime Minister, Shri Narendra Modi and later made the card of choice for the ambitious Pradhan Mantri Jan Dhan Yojana, RuPay is now a known name. We have been identified as National Asset and one of the critical infrastructure for the country and accordingly our project deadlines are aligned to nations need.
Hiring: Engineering
What employees say
+ There was a period when we had a compliance review coming up and the whole team was working through our processes to make sure everything was documented and in order. My manager in
− Compliance reviews are time intensive and add extra work on top of daily tasks.
More reviews on the company profile.
Interview experience · Software Intern
Overall level of the interview was easy and focused on fundamental concepts. There were 2 technical rounds and a very brief HR round. The interviewers were very nice and friendly and even added a little humor while askin
Easy difficulty · Mumbai · 114 reports
More interview insightsJob description
Overview
The Opportunity. We are looking for a Java Full Stack Developer to design, build, and scale mission-critical digital payment applications powering IMPS, AePS, and NETC platforms. This role offers the opportunity 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
Responsibilities
- Design and develop scalable RESTful APIs using Java, Spring Boot, and Hibernate/JPA for IMPS, AePS, and NETC 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
Qualifications
- Employment Type: Full-time | Permanent
- Strong 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 Boot and backend frameworks, including dependency injection, REST API development, exception handling, and microservices-based application design
- Solid understanding of modern frontend development, with React.js, Redux, and TypeScript, including component architecture, hooks, state management, and efficient API integration patterns
- Familiarity with Node.js-based middleware concepts, including event loop behavior, non-blocking I/O, and lightweight service orchestration
- Solid knowledge of event-driven architecture and messaging systems like Kafka, including topics, partitions, consumer groups, and asynchronous processing patterns
- Understanding of caching strategies using Redis or similar systems, including cache-aside patterns, TTL, and eviction policies
- Knowledge of authentication and security mechanisms, including OAuth2, JWT, secure API handling, and input validation
- Good understanding of system design principles, including SOLID principles, layered architecture, and commonly used design patterns such as Factory, Strategy, and Proxy
- Exposure to DevOps practices, including version control (Git), build tools (Maven/Gradle), and environment-based configuration management
- Awareness of observability practices, including structured logging, metrics monitoring, and debugging production issues
- Strong problem-solving, analytical, and communication skills, with the ability to work independently and in cross-functional Agile teams
- Exposure to CI/CD pipelines using Jenkins, GitLab CI, or GitHub Actions
- Knowledge of containerization and orchestration using Docker and Kubernetes
- Familiarity with high-availability, low-latency systems, particularly in financial or payment processing domains
Education
- Location: Mumbai / Hyderabad / Chennai
- Work Mode: 5 Days Work From Office (WFO)
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Last updated 30 September 2026
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