Anuj Gupta

About Anuj Gupta

Passionate Software Development Engineer | Problem Solver | Continuous Learner I am a committed Software Engineer passionate about Java, Spring Boot, JavaScript, React, Node, Express, SQL, and MongoDB, and I specialize in creating efficient and performant web applications. I like to transform complex business requirements into scalable and maintainable code. I have also solved over 1500+ data structure and algorithm problems on LeetCode and GeeksForGeeks, which have honed my problem-solving skills.I thrive in fast-paced environments and am adept at tackling complex challenges. I ensure that my solutions are efficient and scalable.My commitment to continuous learning drives me to stay updated with industry trends and emerging technologies. I enjoy sharing knowledge with peers and contributing to team success through mentorship and collaborative problem-solving. Key Skills:1. Full-Stack Development (MERN, Java, Spring Boot, Hibernate, and Microservices).2. Problem Solving (1500+ Problems Solved).3. API Design and Integration.I am excited to connect with fellow professionals and explore opportunities to innovate and drive impactful projects in the tech industry!

Experience

1. Software Development Engineer-1

   Amazon

   Jun 2025 — Present · Chennai, IN

   Implemented Payment Refund Event Processor for Amazon Payments for MENA countries, handling ~10K payment refund events/hour with automated retries and enrichment, reducing failed refund processing by 25% through robust error handling.• Developed AWS Lambda-based microservices integrating DynamoDB, SQS, and API Gateway, processing payment events with 99.5% success rate and average response time of <300ms, implementing comprehensive logging for real-time monitoring via CloudWatch.• Investigated and resolved 10+ critical payment refund failures in Amazon\'s P3 payment processing system by performing root cause analysis, implementing robust error handling, and enhancing event enrichment logic, significantly improving refund processing success rate and customer experience.• Built and tested one of four Service Provider Interfaces (SPI) for payment processing system, achieving 98% test coverage through unit and integration tests, enabling seamless handling of multiple payment methods of buy now pay later.• Led deployment automation using AWS CDK for payment microservices, reducing deployment time from 45 minutes to 12 minutes, while ensuring zero-downtime updates and maintaining test coverage above 90%.

Education

• Tagore Public School

  High School Diploma

• Arya College of Engineering and IT

  Bachelor of Technology - BTech