Stack: Javascript • Node Js • Express • DynamoDB • MySql • AWS.1. Revolutionised the policy system by developing a fault-tolerant, automated solution from the ground up, eliminating manual processes, and enhancing data integrity with MySQL, AWS Lambda, and EC2, leading to a 50% increase in operational efficiency.2.. Implemented a service-oriented architecture to minimize dependencies, enhancing flexibility for potential migration to alternative cloud platforms.3. Optimised development workflow and enhanced collaboration by implementing a structured Git branching strategy, facilitating seamless transitions and easy rollbacks across feature development, testing, and production branches.4. Strategically migrated serverless functions to EC2 instances, achieving a 40% reduction in invocation costs while upholding optimal application performance.5. Boosted database performance and scalability by implementing RDS Proxy, achieving a 40% reduction in query latency and significantly improving system responsiveness during peak traffic periods.6. Transformed system architecture by transitioning to a Hexagonal Architecture and Onion design pattern, ensuring a robust and scalable structure.7. Engineered robust Node.js automation scripts for bulk data deletion across SQL, DynamoDB, S3, and AWS Cognito, drastically improving database maintenance efficiency and eliminating redundant data.8. Designed and implemented sophisticated testing automation for the new system, automating API calls, Excel data integration, and result exportation. This innovation reduced manual testing by 80%, ensured high accuracy, and significantly boosted team productivity.

Stack : Java • Springboot • Microservices • SQL • MongoDb • Apache Kafka1. Seamlessly onboarded new hotel chain vendors, enriching our customer offerings, and facilitated efficient JSON data exchange via RESTful APIs.2. Developed and improved backend microservices utilizing Java and Spring Boot, focusing on high availability and incorporating inbuilt state machines for effective failure and error management during booking and cancellation processes.3. Collaborated in a cross-functional backend team, contributing to the Accommodation vertical (Hotel Booking Business) by fulfilling product requirements for new features.