Varun R Email & Phone Number

New York, United States

• Engaged in all phases of SDLC, including designing, coding, testing, deploying, and maintaining projects using Scrum methodology.• Developed native Microservices with Spring Cloud libraries like Eureka, Zuul, and Hystrix.• Integrated AWS services (EC2, S3, EBS, Elastic Load Balancer, Auto Scaling groups) with application infrastructure.• Built User Interface modules using HTML, CSS, JavaScript, Angular 11, and AJAX.• Enhanced web page performance and reduced response times with Angular 11 and jQuery.• Refactored Microservices architecture using Spring Boot and Spring Cloud.• Created Authentication and Authorization using OAuth2.0 and Spring Security, storing data in MongoDB.• Deployed CI/CD pipelines with Jenkins, Git, and Docker to AWS EC2 and ECS.• Practiced Test Driven Development (TDD) with TestNG and Mockito.• Utilized Git for version control and JIRA for tracking requirements and bugs.

Atlanta, Georgia, United States

• Designed web pages using HTML5, CSS3, JavaScript, Bootstrap, Angular 10, and MongoDB.• Collaborated with front-end developers and designed back-end services for business processes.• Migrated existing applications to a Microservices architecture using REST APIs, Spring Boot, and AWS, deploying and maintaining AWS EC2 instances in Docker.• Developed Spring Boot-based Microservices and implemented Spring Cloud/Netflix API architecture patterns (Eureka Service discovery, and Configuration server).• Utilized Bootstrap, Angular 10, and NodeJS for effective web design and improved application performance.• Monitored and alerted production systems using AWS CloudWatch, ensuring system reliability.• Integrated with REST APIs and processed JSON responses, enhancing data interaction capabilities.• Developed scalable solutions using NoSQL databases like MongoDB and DynamoDB.• Deployed Spring Boot-based Microservices in Docker containers using Azure cloud services.• Implemented automated testing platforms and unit tests, using GIT for version control and testing APIs with Postman.

Cincinnati, Ohio, United States

• Worked on server-side templating languages, front-end technologies, fundamental design principles, HTML5, CSS, Node JS frameworks, and JavaScript.• Implemented Single Page Application (SPA) with CRUD operations using Angular 8.• Designed and implemented the front-end insurance management interface with HTML5, JavaScript, and jQuery.• Developed a web application based on Microservices using Spring Boot and Spring Cloud for load-balancing, circuit-breaking, distributed tracing, and monitoring.• Utilized CSS Framework, Angular 8, Typescript, Wire-framing, HTML5, and NodeJS for the Presentation layer.• Implemented secure authentication and authorization services using JSON Web Token (JWT) and SAML for Single Sign-On (SSO).• Created Typescript reusable components and services to consume REST APIs using Angular 7's Component-based architecture.• Developed cloud-hosted web applications and REST APIs using Spring Boot with embedded Tomcat.• Used Spring Security to provide JWT-based authentication, authorization, and access-control features.• Employed Hibernate in the data access layer and developed Data Access Object (DAO) and Data Transfer Object (DTO) to separate data access from data transfer.• Implemented JMS with RabbitMQ to publish notifications about important events for every user.• Utilized Git for version control, Jenkins for CI/CD pipeline in AWS EC2, and Jira for bug tracking.• Designed Test Driven Development (TDD) and unit testing using TestNG.

Nashville, Tennessee, United States

• Participated in Agile Development, including story grooming, estimations, retrospectives, and sprint planning.• Utilized Modernizer for cross-browser compatible HTML5/CSS3 page layouts.• Developed user interfaces using HTML5, CSS3, JSON, AJAX, Angular 4, and TypeScript.• Implemented Java 8 features like Streams, lambdas, and functional interfaces.• Worked extensively with Angular 4, including routing, services, directives, and API calls using the HTTP module.• Developed Spring Boot applications to streamline configuration using Lambda Expressions.• Built Microservices with Spring Boot and integrated AWS services such as EC2, S3, VPC, EBS, Elastic Load Balancer, RDS, and Auto Scaling Groups.• Created a Java web application using MVC with JSP, Struts 2, and Hibernate.• Used HTML5, JavaScript, CSS3, and AJAX for front-end development and dynamic web page implementation.• Integrated Spring ORM with Hibernate for database operations and used PL/SQL scripts for data extraction and testing.• Developed REST APIs and connected front-end and back-end via JDBC with MySQL.• Implemented CI/CD pipelines with Jenkins and Docker, publishing Docker images to Nexus repository.• Designed and executed unit tests with TestNG and managed version control with Git.

Bengaluru, Karnataka, India

• Utilized Agile Methodology for project management.• Employed Java 8 features including Lambda Expressions, Stream APIs, and enhancements in Collections, Concurrency, and IO.• Developed Swing, Spring, and J2EE based MVC applications.• Designed session modules using J2EE for existing applications.• Developed front-end applications using Struts Framework and Spring as the middle tier.• Implemented Spring MVC design model with Java Beans, Servlets, and JSP.• Used Spring IoC for dependency injection and developed the web layer with Spring MVC.• Designed front-end web pages with HTML5, jQuery, AJAX, and JavaScript.• Implemented Spring AOP and IoC for business logic and service layers.• Created Hibernate mapping files, domain objects, and HSQL queries for DAO and persistence layers.• Developed stored procedures and SQL queries for data extraction.• Designed UI Delegate Layer, Data Access Layer, and Services Layer using Hibernate, Spring, and JDBC.• Created Apache Ant scripts for building and deploying applications.• Managed version control with GitHub and used JIRA for issue tracking.• Designed and executed unit tests with JUnit.