Hamsini Kari Email & Phone Number

Newport, Oregon, United States

 Developed applications using the agile methodology (SCRUM) and participated in the analysis, specification, design, implementation and testing phases of the Software Development Life Cycle (SDLC). Used Java 11 features such as utility methods, local variable syntax, and nested access control to refactor the existing code. Developed application was using Spring Framework, Spring Components, Spring Data, and Spring Cloud, as well as Oracle. Developed microservices using Spring Cloud and Netflix OSS components, including Eureka server, Zuul, and Hystrix. Worked with both internal and external third-party apps, we used Spring Cloud's Service registry and discovery mechanism, as well as Hystrix for better error cascading. Designed and implemented a SOA Micro service with a JSON HTTP REST API for recent activity feeds using Amazon Simple Queue Service (SQS). Implemented RESTful services with JAX-RS and Spring Boot using Microservices Architecture. Implemented, configured, and diagnosed the Java applications running on Tomcat server and installed the Enterprise applications. Configured Maven dependencies for application building processes that create Pom.xml files. Automated CI/CD using Jenkins, build-pipeline-plugin, Maven, and GIT. Configured Jenkins' master/slave nodes to distribute builds. Participated in retrospective meetings after every sprint to discuss the overall ranking and drawbacks of the previous sprint. Assigned tasks, tracked bugs, and set up fixtures using JIRA.Environment: Java 11, Spring Boot, Microservices, Spring Data JPA, Spring Security, Netflix OSS, Eureka Server, Zuul, Hystrix, JSON, HTTP, Restful service, Apache Tomcat Server, Jenkins, Maven, GIT, Jira, JAX-RS, Agile, Windows.

Anaheim, California, United States

J2EE Developer Participated in various phases of the Software Development Life Cycle (SDLC) using Agile Methodology Added default methods and static methods to Collection API in Java 11+. Created AWS Lambda, EC2 instances provisioning on AWS environment and implemented security groups, administered Amazon VPC’s. Developed a spring-based application using Spring Dependency Injection, Spring Transaction, Spring Data, and Spring AOP. Implemented OAuth security and fixed security vulnerabilities identified through static scan codes using an internal module. Used Spring DI, Autowiring, and Spring MVC for REST APIs, and Spring Boot for Microservices.  Utilized the HTTP GET, PUT, POST, DELETE methods to interact with the database and the JSON format to interact with the application. Assisted with Docker container snapshots, attaching to running containers, removing images, and managing directory structures. Used Spring Kafka API calls, we managed to process messages smoothly on Kafka Clusters. Worked on Rest Web services for backend services, Oracle for database services, and Jersey for JAX-RS implementation. Used Postman to test the RESTful API with HTTP requests like GET, POST, and PUT. Used Maven to build and deploy the application on Apache Tomcat. Used GIT Version Control System to commit the working changes to the repository system and to obtain the other changes from others. Ensured that JIRA has tasks for each user story within the current sprint and prepares a detailed plan for upcoming sprints.Environment: Java 11, Microservices, Spring Boot, Spring Data JPA, Spring DI, Spring Transaction Management, Spring AOP, Kafka, JAX-RS, OAuth 2, HTTP, Apache Tomcat Server, Maven, GIT, Jenkins, Docker, Agile, Windows.

Chennai, Tamil Nadu, India

J2EE Developer Implemented Agile methodologies and participated in SCRUM meetings on by-weekly basis to review rapidly changing requirements. Implemented the application with Spring Framework modules such as Spring IOC, Spring MVC, Spring Boot, Spring Security, and Spring JDBC (with annotations for JPA). Used Java 8 features like lambda expressions to communicate with the database and stream APIs for bulk data operations on collections. Created and injected Spring services, Spring controllers, and DAOs to achieve dependency injection. Integrated OAuth into the REST services, making it possible to access the REST services only if the client passes the gateway test. Implemented Spring Batch as well as ESP Task & Job Scheduler to automate the import of data from CSV files sent from the client into the database. Deployed my application to Amazon Web Services EC2 instances and configured storage in AWS S3. Created customized AMIs based on existing AWS EC2 instances using the create image function, and therefore used this snapshot as a disaster recovery option. Utilized Netflix Stack such as Eureka Server, Spring Cloud Config Server, Hystrix and Zuul proxy server. Maintained daily/weekly builds using Jenkins for CI/CD and managing multi-project jobs using the pipeline plug-in. Used JDBC to connect to Oracle DB. Deployed the application on Apache Tomcat Server using the GIT versioning system for continuous development. Used GIT to control, track, and maintain different versions of the code. Developed, debugged, integrated, and deployed the application using STS. Used Jira Tool to track, assign, and resolve tickets in the defect tracking systems, and fixed defects under UAT in the QA environment.Environment: Java 8, Microservices, Spring Boot, Spring JDBC, Spring Security, Spring IOC, Spring MVC, Spring Controllers, Spring Batch, AWS(EC2, S3, AMIs), Oracle DB, Apache Tomcat Server, GIT, Spring Tool Suite, Jira, Windows.