As a Software Development Engineer 2 (SDE 2) at Licious, I apply my skills and knowledge in Java, Spring Boot, AWS, and other technologies to optimize payment systems, reduce cost, improve customer satisfaction and enhance overall efficiency. I have successfully implemented instant refunds, slashed payment infrastructure costs by 40%, and prevented a potential loss of 2 crores due to incorrect wallet promotions. I have also reduced customer care issues for transaction refunds by 35%, saving 1,000 calls daily, and eliminated a monthly loss of 4 lakhs by optimizing multithreading and simplifying payment statuses. Prior to joining Licious, I was a Product Engineer at Juspay Technologies, where I engineered highly scalable APIs, resolved critical issues for global clients, and streamlined payment processing systems. I unified common types for UPI and Wallet payment for 25 gateways, integrated PAYGLOCAL gateway for international card subscriptions, and solved issues and developed features for clients such as Microsoft, Gaana, ICICI Prudential, and Hotstar. I also hold notable certifications and achievements in competitive programming, such as 5 stars in Codechef, and in enhancing soft skills and personality, demonstrating my commitment to continuous learning and innovation. I graduated with a Bachelor of Technology degree in Computer Science from the University of Engineering and Management, Kolkata in 2020.