Varan Reddy

● Worked in Agile framework as an individual contributor Responsibilities include - Interaction with Business team in story grooming, reviewing story/acceptance criteria. ● Used Java8 features like Streams and Lambda expressions and Maintained Interface compatibility and concurrency in the project using Java 8 new features like default, static methods and Concurrency API. ● Used Java 8 Method References feature to point to methods by their names. ● Used Microservice architecture with Spring Boot based services interacting through a combination of REST and Apache Kafka message brokers and worked with Kafka Cluster using Zookeeper. ● Closely worked with Kafka Admin team to set up Kafka cluster setup on the QA and Production environments. ● Worked in container-based technologies like Docker, Kubernetes, and OpenShift. ● Used Amazon Cloud Watch to monitor AWS services and Amazon Cloud Watch logs to monitor applications. ● Implemented Microservices on RedHat OpenShift based on Kubernetes, and Docker to achieve Continuous Delivery. ● Converted a Monolithic app to Microservices Architecture using Spring Boot 2.0 using 12-factor app methodology. Deployed, Scaled, Configured, wrote manifest file for various Microservices in Open shift/Kubernetes environment. ● Generated Metrics with method level granularity and Persistence using Spring AOP and Spring Actuator. ● Designing continuous deployment strategy for the docker images using Flux, perform rolling updates, in Kubernetes and AWS EKS. ● Used REST and SOAP Web Services to acquire credit history information. ● Involved in consuming RESTful web services using Angular JS to render JSON data. ● Developed web applications running on NodeJS using the Express framework, Vue.js and Backbone.js with Mustache.js for front end MVC/templating. ● Developed dynamic responsive Web Application by integrating Angular with Bootstrap which is further integrated with Web Services and Vue.js.

● Used Java Lambda expressions for array operations, collections, and Enhanced Concurrency methods etc. throughout the application for well-defined programming. ● Used Java 8 Stream APIs and functional style of programming. ● REST API's development with Spring Boot, configuration, and maintenance of Micro services with CXF.b ● Implemented Spring Transactions along with Spring ORM for Database transactions. ● Participated in front end development using JSF 2.0, JavaScript, HTML 5, CSS 3.0. ● Extensively used CSS and Bootstrap for styling the HTML elements. ● Developed dynamic web pages using HTML5, CSS3, Bootstrap, Less, CSS3 (SASS) and AJAX. ● Used jQuery for view rendering of the web pages. ● Worked in DOM, React Props, and Life cycle methods and with React States and Events. ● Used the flux architecture in ReactJS for building client-side web application. ● Worked in React JS with Redux architecture. ● Maintained states in the stores and dispatched the actions using redux. ● Developed a set of the application functionality using CRUD (Create, read, update, delete) features of backbone.JS and used backbone.js to create Controllers to handle events triggered by clients. ● Used backbone.js as Model, Widgets as Controller and jQuery template as View. ● Developed RESTful Services and Web Service Clients (JAX-RS or JAX-WS) using jersey framework with data representation in different formats such as XML and JSON. ● Worked extensively with java persistence context (JPA) implemented by Hibernate. ● Designed, configured and deployed Amazon Web Services (AWS) for a multitude of applications utilizing the AWS stack (Including EC2, S3), focusing on high-availability, fault tolerance, and auto-scaling. ● Gulp used for modification of JavaScript files and for monitoring the application. ● Written Mockito test scripts to automate the unit testing process. ● Created automation framework and test scripts using Selenium Web-Driver for multiple platforms

● Maintained Interface compatibility and concurrency in the project using Java 8 new features like default, static methods and Concurrency API ● Participated in requirement gathering and designed application using UML. Elaborated on the Use Cases based on business requirements and was responsible for creation of Class Diagrams, Sequence, Collaboration and Activity Diagrams. ● Responsibilities included development of new modules of the application such as Web using J2EE technologies and Spring Framework. ● Implemented service layer using Spring IOC and annotations and Controllers using Spring MVC. ● Implemented DAOs, entities using Hibernate API and Hibernate QL. ● All the functionality is implemented using Spring IO / Spring Boot and Hibernate ORM. Implemented Java EE components using Spring MVC, Spring IOC, spring transactions and spring security modules. ● Developed Hibernate mapping file and the HQL queries and Criteria API for retrieving data from databases. ● Building Linux servers (web-logic application, apache, DB servers etc) in large quantity as per EDC and Non-EDC production requirement as well as App/Dev requirement. ● Coordinated hardware/software installations and upgrades to ensure proper Unix system performance. ● Served as the lead PowerShell developer in hundreds of Windows based migration and automation projects. ● Can handle commissioning and decommissioning nodes along with monitoring of Cassandra Cluster. ● Closely worked with Kafka Admin team to set up Kafka cluster setup on the QA and Production environments. ● Installed and maintained Unix security patches on the development systems. Environment: Java 8,J2EE, Spring, Hibernate, Spring Data JPA, Webservices, PowerShell, MYSQL, WebLogic Portal, JMS, EJB, AJAX, Struts, JSP, Java beans, Web Services, Apache Kafka, WebLogic Application Server, SOAP, XML, JAXP, JNDI, UML, CSS, DHTML, Oracle, Java Script, Cassandra, HTML

● Implementing project using Agile SCRUM methodology, involved in daily stand up meetings and sprint showcase and sprint retrospective. ● Developed the web tier using JSP, Spring MVC. ● Used Spring Framework for the Implementation of the Application. ● Integrated Spring Dependency Injection (IoC) among different layers of an application. ● Used Hibernate for object Relational Mapping and used JPA for annotations. ● Implemented REST web services using Apache-CXF framework. ● Involved in creating various Data Access Objects (DAO) for addition, modification and deletion of records using various specification files. ● Implemented interface sub classes using lambda expressions. ● Worked on developing the user interface for internal users with Spring MVC, Ajax, jQuery, AngularJS and JSON. ● Implemented design patterns like Singleton, MVC, DAO Pattern and Value Objects/Data Transfer Objects (DTO) to transfer data between different tiers of the application to decrease the network traffic when invoking remote objects. ● Developed SOAP services with JAX-WS using Apache CXF framework with data representation in XML format. ● Worked with creating WSDL Documentation to act as a agreement between producer and consumer of the Web service.Worked on Load testing on JMeter to improve the performance of newly developed code. ● Used Java Message Service (JMS) for reliable and asynchronous exchange of important information that consumes the message from Java Message Queue. ● Implemented second level cache using Oracle Coherence for Hibernate. ● Involved in writing the web service code to interact with other applications. Environment: Spring framework, Spring MVC, Spring JDBC, Hibernate, J2EE, JSP, Ajax, XML, Log4j Maven, JavaScript, HTML, CSS, jQuery, SVN, GitHub, WebSphere, Agile, JAX-WS, Apache-CXF, JSF. MQ, Maven, Jenkins, Log4J, JUnit, Mockito, Karma, Jasmine, JIRA.