Implemented RESTful Web Services using Spring and Spring Boot for microservices, consuming services with Spring RESTtemplate.Developed a server-side application that effectively interacted with databases using Spring Boot and JSP, resulting in a 30%decrease in data retrieval time and a 25% increase in data accuracy.Designed AWS Lambda-based microservices interacting with DynamoDB and SNS/SQS using AWS SDK, leading to a 25%improvement in processing efficiency.• Managed various AWS resources including S3, CloudFormation, IAM roles, DynamoDB, CloudWatch, EC2, Lambda, and StepFunctions, optimizing resource utilization by 30%.• Engineered RESTful Web Services using Spring Boot and performed unit and regression tests with Postman, increasing testingefficiency by 25%.• Executed configuration, deployment, and maintenance of cloud services within AWS, resulting in a notable 20% enhancement indeployment efficiency

Enhanced application security by integrating advanced user authentication and authorization features using Spring Security, achieving compliance with industry standards, and reducing security breaches by 45%.• Integrated third-party APIs to extend application functionality, facilitating seamless data exchange and processing, and reducing manual data handling by 40%.• Created comprehensive unit and integration tests using JUnit and Mockito, achieving over 90% code coverage and ensuring high reliability and quality of the software.• Engaged in continuous integration and continuous deployment (CI/CD) processes using Jenkins, which improved deployment efficiency by 25% and reduced the time to market for new features.

• Contributed to the design and implementation of backend services using Java and Spring Boot, enhancing system performanceand scalability by 20%.• Architected dynamic web pages using JSP and Servlets, enhancing UI responsiveness by 25%, resulting in a 30% boost in userinteractions and a 20% increase in conversion rates.• Participated in the design of database schemas and wrote optimized SQL queries, increasing data retrieval efficiency by 30%.• Teamed up with senior developers to troubleshoot and resolve technical challenges, leading to a 15% decrease in system downtimeand enhancing overall application stability.• Created detailed technical documentation for various modules, ensuring clear communication and facilitating knowledge sharingacross the team, which improved onboarding efficiency for new team members by 40%.• Supported the deployment and maintenance of applications on Apache Tomcat servers, ensuring high availability and performance,contributing to a 99.9% uptime.