Projects: implementing the Backend RESTful API and the middleware using Java. As the principal application developer, I was responsible for making significant modifications to the major Composite Services. I leveraged my technical expertise and various tools to thoroughly assess the requirements and deliver effective solutions.Designed and optimized the Data Conversion Network component integral to the entire system. A memory overflow occurred due to processing too much data at once, reducing data processing capacity. To address this issue, the system should release the memory immediately after each table insertion.Maintained the Single Responsibility Principle in Microservices design, implementing RestTemplate and Feign and establishing connections between multiple servers.Refactored the new functionality on GitHub with unit testing.Used Log4J for application logging and notification tracking mechanisms.Created Relational Database Management System for tables clustering in the database.Implemented Hibernate as the communication bridge between the server and the database.. Worked in an Agile environment and experienced in all phases of Software Development Life Cycle.Maintained code coverage of 85% excluding model objects by writing unit tests using JUnit, JaCoco, and Mockito.Environment: Java 8, Spring Boot, Hibernate, JUnit, Maven, IntelliJ, Git, Postman, Jenkins, Unix.

Projects: Provided designs, solutions, and technical directions during the developmentcycle of the new Meter Service to solve complex problems. In this project, I served as aJava Full-Stack Developer for the Meter Service design, and provided SQL statement resolver, fully non-blocking applications solutions to a team of 7.Refactored old Meter Service based on current issues, following reactive programming workflow, creating a new re-usable/non-blocking service across the application, and performing back-end development utilizing Java, Spring Boot. Reactor Core, Hibernate, MySQL, and RabbitMQ technology.Created a new Task Scheduler and provided a more efficient/non-blocking scheduler than the existing scheduler and Audit Management to ensure Meter Service works properly and provides a functional auto repair and warning system.Involved in the development of Java components by using Hibernate and spring to persist the data in MySQL.Used Reactor Core, lock, multithreading, and concurrency to develop the SQL resolver component. This helped in handling various situations such as asynchronism and ensured that the execution of SQL statements was not impacted.Used Reactor Core and Lock to develop a task scheduler that enables running scheduled tasks on the Reactor Core and ensured that only one thread runs the task at a time.Environment: Java 8, Spring Boot, Hibernate, JUnit, Maven, MySQL, RabbitMQ, IntelliJ, Git, Postman, Jenkins, Unix.

Projects: Due to the increasing pageviews, our team is migrating the whole project From PHP to Spring Boot, and I was involved in web applications for both company’s website development and internal tools.Developed REST-based microservices backend component in Java with Spring Boot framework.Designed and developed SQL database to handle various needs of the application.Deployed project to AWS Cloud (CentOS) utilizing Kubernetes and Docker technology. Built an e-commerce web application in Agile software development environment with Test Driven Development approach.Performed front-end development utilizing React, HTML, CSS, JS, and Redux.Used Redux-Thunk and Axios as the middleware to handle asynchronous actions.Utilized Fetch, Promises, and pagination to reduce website rendering time in React by decreasing waiting time and bandwidth usage.Environment: Java 8, Spring Boot, Spring Security, Mybatis, Junit, Maven, React, HTML5, CSS3, JavaScript ES6, IntelliJ, Git, AWS RDS, Postman, Jenkins, Unix.

• Developed software tools in Java to collect and analyze internet packet data to assist the research for Software-defined networking(SDN) and Berkeley Packet Filter(BPF).• Developed software tools in C language to simulate relative experiments for the SDN and BPF.• Performed research on various topics that helps the SDN and BPF research project.

• Optimized the Warehouse space monthly to increase the utilization rate of warehouse space by 15%• Sent and accepted supplies, materials, equipment and products to increase the shipment rate by 7.5%