Harsa Jakkula

Experience

1. Sr Java Full Stack Developer

   Kroger

   Oct 2021 — Present · Coppell, TX, US

   Followed the project development in Agile methodologies – Sprint, scrum. Utilized the features of Angular 9 to present effective web design. Created Angular service and integration with RESTful APIs. Used Angular Http Client to send GET/POST request to fetch data from server and built Angular 9 components, UI services to consume rest services using Component based architecture provided by Angular 9. Used advanced Java 9 features like Lambda expressions for array operations, collections. Enhanced concurrency methods etc. throughout the application for well-defined programming. Implemented various features of Spring framework such as Dependency Injection, IOC, Annotations, Spring Security and Spring integration with Angular 9. Developed Several RESTAPI’s to fetch the data from different systems and involved in creating new REST end services for the business logic involved. Used Spring Core annotations for Dependency Injection Spring DI and Spring MVC for REST API’s and Spring Boot for Microservices. Designed and developed Spring Batch based system to process 1 million transactions with the Spring Batch jobs and implemented the Swagger UI for all the rest end point that has been developed. Implemented REST Microservices using Spring Boot with the method level granularity and persistence. Used Spring Config server for the centralized configuration and Jenkins for the Microservices deployment. Implemented Kafka producer and consumer applications on Kafka cluster setup with help of Zookeeper. Used Spring Kafka API calls to process the messages smoothly on Kafka cluster setup and GIT version control tools for code management check in, check outs and synchronizing the code. Implemented filters for user authentication and user authorization by Spring Security