Sai Varma Email & Phone Number

Dallas,Tx

• Involved in meetings with clients for requirement gathering analysis, understanding the business and functional specifications and followed agile methodology. • Designed and Developed user interfaces using Angular, AJAX, TypeScript, HTML, DHTML, and CSS. • Developed reusable components in Angular and written typescript files.• Used Angular router to build single page application for navigating through the different status and multiple models.• Utilized Java 1.8 features like Lambda expressions and Stream API for Bulk data operations on Collections, which would increase the performance of the Application.• Built confidential tool using Angular, RXJS, and NGRX platform. Developed components as an independent module for reusability across the application.• Implemented resolver functions in Java to fetch and manipulate data from various data sources (databases, REST APIs, etc.) in response to GraphQL queries.• Developed using new features of Java 1.8 Annotations, Generics, and Enhanced for loop and Enums. • Used spring and hibernate for implementing IOC, AOP and ORM for back-end tiers.• Used Java 8 features lambdas and stream API with collections. • Developed server-side applications using Spring Boot, Hibernate.• Developed microservices using Spring Boot using event-based architecture using Kafka.• Written services for consuming and producing messages to multiple channels of Kafka.• Developed REST based services using Spring REST Controller and written unit test cases for them.• Involved in writing application-level code to interact with Rest APIs using AJAX, JSON.• Created and optimized GraphQL mutations for data modification operations.• Integrated GraphQL with front-end technologies such as React or Angular to build interactive web applications.• Modified SQL, PL/SQL procedures and triggers to obtain optimised output and worked with Cassandra.• Successfully executed all the test cases and fixed any bugs/issues identified during the test cycles.

Philladelphia, Pa

• Developed high-performance back-end applications by writing reusable, testable, and efficient code using Node JS and connecting applications to web services.• Developed User Interface application modules using HTML, CSS, JavaScript, Angular 8, JSON, and AJAX.• Collaborated with the front-end developers and designed back-end services for business processes.• Involved in migration from the current data center to dynamo cloud using Azure site recovery and Database Migration Service, Performed API management in Azure for backend operations and data persistence.• Developed Microservices with Spring Eureka to retrieve API routes for the entire cluster. Using this strategy each microservice in a cluster can be load balanced and exposed through one API gateway.• Used Java 8 stream API’s for bulk operations on collections using parallel streams.• Created RFP (Request for Proposal) microservice to provide RESTful API utilizing Spring Boot and Spring MVC.• Deployed spring-boot-based microservices Docker container using Azure cloud container services.• Involved in the implementation of business logic in struts framework and Hibernate in the back end.• Involved in designing web pages using HTML 5, CSS3, JavaScript, Bootstrap, React.js, and Mongo DB.• Implemented and maintained the monitoring and alerting of production using AWS cloud watch.• Used JSON and XML for developing the application to interact with APIs, and Web Services.• Developed client-side code in AngularJs, Integrated with REST, and Processed the JSON response.• Used spring Boot at the back end, which helped to develop an application with ease.• Implemented high availability and performance applications and maintained database, data stores, applications, and web servers.• Oversaw migration of existing applications into Microservices designing using REST APIs, SpringBoot, and AWS. Deploy and maintain AWS EC2 instances in Docker.

Houston, Tx

• Followed Agile Software Development Methodology to build the application iteratively and incrementally. Participated in Scrum related activities and daily scrum meetings. • Participated in architecture design meetings to decide on the right web Services to use for the application and involved in working with the QA to assist in writing test code and debugging the defects in the application.• Implemented SOA to develop Spring Restful/Microservices and implemented Spring Eureka, Netflix, Ribbon as part of Services Discovery using Eureka. • Used Microservices with Spring Boot services and a combination of REST Web Services. • Developed server-side application using Spring Boot and Hibernate In-order to interact with the database.• Used Restful web services to pass JSON data to communicate between UI and server.• Secured REST API’s by implementing OAuth2 token-based authorization scheme by spring security.• Implemented and developed UI components using React JS features like dependency Injection, Models, data binding and controllers. • Developed Interactive web pages and web interface using React JS, HTML, CSS, JavaScript, and Bootstrap. • Used MongoDB document-oriented database to store data and Created object to Mongo mapping for various domains objects.• Configured Active MQ/ RabbitMQ to read and write a message from external programs between the APIs and Microservices.• Used JUnit, Mockito and Power Mocks framework for unit testing of application and implemented Test-Driven Development (TDD) methodology. • Developed and performed test cases using Jest and Mocha for front-end unit testing and used the Cucumber, Protractor and Http-server for the End 2 End testing.

• Design and implemented new features on both Java-based EMS (Enterprise Management Server) client/server Application and Web Application.• Designed and implemented new features on existing Java Based Desktop EMS application using Core Java API’s, Swing, AWT and java Framework Spring core.• Developed REST and SOAP based web services using WSDL, JAX-WS, JAX-RS, Jersey, XML, JSON to communicate from Java based-EMS server to client and communicating with Spider cloud Routers to java-based EMS server.• Used Spring MVC implementations like Spring Security, Spring IOC, Spring REST and Spring JDBC for developing backed web applications.• Designed and developed various middleware integration components using various messaging technologies like Kafka, active MQ.• Developed user interface by using ReactJS components, Forms, Events, Keys, Router, Animations and Flux concept for SPA development.• Having good Experience in design and development of various web and enterprise applications using Type safe technologies like Scala, Akka and Play framework.• Building in Data Driven applications using a combination of Java/Scala and the Spark framework• Worked on SOAP and RESTful Services using WEB API which returns JSON data.• Written SQL Queries to check the validity for the testing while testing Data anomalies within the Database and wrote MYSQL schemas.