Principal Node Js Developer - (WFO | Mumbai/Delhi)

About the Role:

Are you a skilled Node.Js eager to make an impact on a groundbreaking fintech project serving a massive user base of 700 million? Join us in driving one of India's largest digital transformations in the financial sector.

Senior Node.js Developer UPI Switch & Payment Systems

We are looking for an experienced Senior Node.js Developer (7-10 years) to join our team and play a key role in building a robust UPI switch for banking applications. The ideal candidate has deep expertise in payment systems, transaction processing, and API integrations and is adept at developing secure, high-performance financial solutions.

Key Responsibilities:

• Design, develop, and maintain a scalable UPI switch using Node.js for banking applications.
• Architect and implement high-throughput, secure, and fault-tolerant payment processing systems.
• Work closely with backend, frontend, and DevOps teams to ensure seamless system integration.
• Optimize transaction processing to handle high-volume real-time payments efficiently.
• Implement security best practices for handling sensitive financial transactions.
• Ensure compliance with NPCI specifications, payment gateways, and banking APIs.
• Identify and resolve performance bottlenecks to enhance system reliability.
• Maintain high availability and fault tolerance through robust monitoring and design principles.
• Stay updated on banking and fintech industry trends to drive innovation.

Required Skills & Experience:

• 7-10 years of experience in backend development with Node.js.
• Proven track record in developing UPI switches or real-time payment solutions.
• Strong knowledge of NPCI UPI architecture, ISO 8583, and financial transaction protocols.
• Hands-on experience with RESTful APIs, WebSockets, and microservices.
• Proficiency in PostgreSQL and database optimization.
• Expertise in asynchronous programming, event-driven architecture, and message queues (Kafka, RabbitMQ, etc.).
• Experience in banking, fintech applications, or payment processing systems.
• Strong understanding of security protocols, encryption, and compliance standards for financial applications.
• Familiarity with cloud platforms (AWS, GCP, or Azure) and containerization (Docker, Kubernetes).
• Ability to troubleshoot performance issues and optimize system efficiency

Preferred Qualifications:

• Experience with blockchain-based payment systems is a plus.
• Knowledge of AI/ML-driven fraud detection mechanisms.
• Familiarity with DevOps tools for CI/CD, logging, and monitoring

Why Join us:

• Chance to contribute on one of India's Largest Digital Transformation Projects
• 700 days of expertise in 365 days of experience
• Rapid Growth with fast-tracked career architecture