• Strengthened cloud-native application security via Spring web-filter rate limiting, reducing attack risk by 45% and costs by 23%• Applied object-oriented design’s SOLID principles in designing layered MVC architecture, boosting code scalability and extensibility• Engineered flexible JPA-driven database schema utilizing JPA as object-relational mapping tool at persistence layer• Streamlined cleanup process leveraging Spring web listener and AWS CloudWatch triggers, achieving 18% faster backups• Transformed monolithic app to fault-tolerant microservices on Docker via Spring Boot and RESTful architecture

• Enhanced core file uploading RESTful APIs, cutting upload time by 20%, modularizing docs for better maintainability, and slashing Bitbucket loading time by 34%• Pioneered migration of two web services modules from Java 8 to 11, tackling challenges like JPMS encapsulation, classpath resolution, and java.se.ee module removal, ensuring seamless transition• Achieved 90% Java 11 test coverage through Jenkins in CI/CD, deploying SonarQube using EKS Kubernetes and Helm charts for code quality, reducing security vulnerabilities by 30%

• Developed B2B ecommerce website leveraging SAP commerce cloud version 2005 for Siemens Gamesa Renewable Energy to enable ease of buying for customers, creating relevant and personalized shopping experiences• Optimized cart merging strategies by 65% with AJAX and Java multithreading, lessened home page load time by 18ms• Spearheaded agile development of RESTful web services using J2EE, facilitating robust backlog refinement process, leading to 30% reduction in scope creep and 25% increase in customer satisfaction scores• Deployed Prometheus for 20% more efficient event monitoring, cost-effective compared to Dynatrace, refining project monitoring

- Optimized cart merging strategies up to 75% while merging cart on user sign-in using asynchronous calls and multithreading.- Successfully researched, analyzed and implemented project monitoring tool – Prometheus.

• Engineered and deployed scalable ecommerce spring boot application, integrating bamboo for continuous integration and deployment including core hybris concepts data modeling, order processing and business processes• Took initiative to identify and address critical data management issue, resulting in 30% improvement in database efficiency leveraging Experian DB to populate address through successful migration of over 40 million user addresses• Elevated user experience on product page by implementing dynamic color swatches, optimizing size selection by designing reusable React components, and establishing clear pricing differentiation• Built web filters in Spring MVC to store multiple promotions in session cookie, thereby adding up to 27% in monthly sales• Strengthened SOLR indexing by optimizing query performance, achieved around 18% more accuracy in product recommendations