Senior Java Fullstack Engineer for High-Volume APIs

TymblHub

Hinoba-an

On-site

PHP 1,990,000 - 3,979,000

Full time

14 days+

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Job summary

National Payment Corporation of India (NPCI) seeks a Lead Fullstack Application Engineer to drive end-to-end delivery of UPI API applications from design to production. You will push continuous improvements in security, performance, and scalability within a high-availability microservices ecosystem.

The role requires 9–14 years’ experience and a strong background in Java Spring Boot, REST APIs, and cloud-native architectures.

Qualifications

9+ to 14 years of experience in design, development and delivery of API platforms.
Bachelor's/Master's in Computer Science, Electronics/Electrical Engineering, Data Science, or related field.

Responsibilities

Lead end-to-end delivery of UPI API applications from system design to production deployment.
Drive continuous enhancements in performance, security, scalability, and regulatory compliance.
Design, build, and maintain high-availability microservices-based API platforms.
Collaborate with cross-functional teams to enable seamless integration and scalable solutions.
Implement and enforce best practices for API lifecycle management, including versioning and backward compatibility.
Establish strong observability with logging, metrics, and tracing for production systems.
Optimize system architecture to support high transaction throughput and low latency.
Ensure reliability and operational stability of APIs powering large-scale UPI transactions.