Summary
Overview
Work History
Education
Skills
Timeline
Generic

Varun Kumar Vandanapu

Java Fullstack Developer
Bloomington,IL

Summary

Results-driven software engineer with 8+ years of experience in designing and developing scalable, high-performance web and client-server applications using Java, Spring Boot, and Microservices. Expertise in J2EE technologies (JSP, Servlets, Struts, Spring MVC, Spring Security, Spring JPA, REST, SOAP) and front-end frameworks like React.js, AngularJS, and Node.js. Strong background in Core Java (Multithreading, Collections, Stream API, Lambda expressions) and database management, working with SQL (PostgreSQL, Oracle, MySQL, MS SQL) and NoSQL (MongoDB, DynamoDB, Cassandra). Skilled in DevOps, CI/CD pipelines using Jenkins, Docker, Kubernetes, and AWS (EC2, S3, RDS, CloudWatch). Experienced in API development, authentication protocols (OAuth2, JWT), and messaging queues (RabbitMQ, Kafka, ActiveMQ). Adept at unit testing (JUnit, Mockito, TestNG), automation (Cucumber, Selenium), and performance testing (JMeter). Passionate about delivering optimized, scalable, and secure solutions in Agile and Waterfall environments.

Overview

8
8
years of professional experience
3
3
years of post-secondary education

Work History

Senior Java Full Stack Developer

Rivian
Bloomington , Ill
02.2022 - Current
  • Company Overview: Developed a software solution to monitor real-time data captured through PLC responses on the production line. The application tracks and visualizes critical data for each work element, enabling precise monitoring of production performance. Internally deployed within Rivian’s production platform, the system enhances operational efficiency by providing real-time insights into manufacturing processes
  • Designed and developed Spring boot REST Microservices based on the requirements
  • Implemented the application using Spring MVC Framework and handled the authentication, authorization, and access-control features by using Spring Security
  • Implemented Front End using HTML5 with React, JavaScript, Bootstrap, CSS3
  • Responsible for maintaining the code quality, coding, and implementation standards by code reviews
  • Used Spring Configuration Annotation for easy configuration, Hibernate JPA Annotation in POJO classes as well as Spring Annotation across the Spring Boot application
  • Leveraged Hibernate and JPA to streamline object-relational mapping, enabling seamless integration between Java applications and relational databases while optimizing query performance for improved application responsiveness
  • Used Spring Data JPA for creation of POJO classes and Repositories
  • Automated CI/CD workflows for seamless deployment to cloud environments using Jenkins, integrating plugins like AWS CodeDeploy and Kubernetes for reliability and scalability
  • Used Spring Security for authentication and authorization
  • Used AWS S3 for storing objects/data related to application
  • Used Mockito and Junit for unit testing
  • Developed a software solution to monitor real-time data captured through PLC responses on the production line
  • The application tracks and visualizes critical data for each work element, enabling precise monitoring of production performance
  • Internally deployed within Rivian’s production platform, the system enhances operational efficiency by providing real-time insights into manufacturing processes
  • Environment: Java 1.8, React, JavaScript, Micro services, HTML5, CSS3, Bootstrap, JSON, NPM, RESTAPI, OAUTH, JIRA, GIT, GitHub, Agile, AWS, Docker, JWT, Java, PostgreSQL, Jenkins, Splunk

Java Full Stack Developer

Lululemon
Seattle, Washington
01.2021 - 01.2022
  • Company Overview: Contributed to the development of a comprehensive e-commerce platform designed to provide an optimal online shopping experience for a retail client
  • All the functionalities are implemented using Spring IO / Spring Boot and Spring JDBC
  • Designed and developed the RESTful web services using the JAX-RS API to communicate over the network
  • Designed, developed, and tested HTML5, CSS3, Bootstrap, JavaScript, jQuery and React.JS that meets accessibility and web browser standards for website
  • Implemented Java EE components using Spring IOC, Spring transactions and Spring security modules
  • Integrated OAUTH with the application for Security
  • Implemented React JS code to handle cross browser compatibility issues in Mozilla, IE 7, 8, 9, Safari and FF
  • Defined AWS Security Groups which acted as virtual firewalls that controlled the traffic allowed to reach one or more AWS EC2 instances
  • Worked in using React JS components, Forms, Events, Keys, Router, Animations and Flux concept
  • Worked on Swagger API and auto-generated documentation for all REST calls
  • Worked with React charting libraries to create bar charts, pie charts etc
  • In the application
  • Implemented persistence layer using Spring JDBC template to store the data in Oracle database
  • Created RFP microservices to provide RESTful API utilizing Spring Boot with Microservices
  • Used Oracle as database and Involved in the development of PL/SQL backend implementation and using SQL created Select, Update and Delete statements
  • Involved in writing complex SQL queries using correlated subqueries, joins, and recursive queries, PL/SQL stored procedures
  • Used Microservices to ensure the scalability of application on cloud infrastructure
  • Implemented spring boot microservices to process the messages into the Kafka cluster setup
  • Developed Mockito and JUnit test cases to improve code coverage
  • Created JSON request and validated the response using postman Interceptor and Swagger UI
  • Apache Maven tool has been used for the build and deployment of the application
  • Monitored the Error logs using Log4j and fixed the problems
  • Contributed to the development of a comprehensive e-commerce platform designed to provide an optimal online shopping experience for a retail client
  • Environment: Java 8.0, Spring, Hibernate, ReactJS, Spring Boot, JPA, AWS, ReactJS, HTML5, CSS3, Oracle 12c, Swagger UI, Log4j, JIRA, Jenkins, Web Services, Kafka, Microservices, REST UI, Docker, Eclipse

Java-J2EE Developer

CBase Inc
Hyderabad, Telangana
05.2019 - 12.2020
  • Company Overview: Developed returns and refunds modules in POS for a prominent retail store
  • Responsible for creating efficient design and developing User Interaction screens using HTML5, CSS3, JavaScript, HTTP and JSON
  • Used Angular 2 to develop a single page application
  • Involved to create different cross browser compatible user interactive web pages, using web technologies like HTML5, XHTML, and CSS3
  • Utilized various JavaScript and Angular 2 libraries, Services for form validation and other Interactive features
  • Used Service and JSON to make asynchronous calls to the project server to fetch data on the fly
  • Implemented Angular 2 application to follow strict MVC for improved source code maintenance
  • Created the Microservices using the Spring Boot and integrated Netflix Zuul Api Gateway to handle incoming requests, enabling dynamic routing, filtering, and load balancing, resulting in efficient and reliable API communication
  • Developed Microservices Architecture by Using Spring Boot with Spring Framework plugins
  • Used Http in AngularJS for consuming Restful web services
  • Used Spring Data (JPA) module for performing CRUD operations on database
  • Consumed restful web services using Spring REST Template for the data coming from external systems
  • Used Angular 2 forms like Template Driven forms and Modern Driven (Reactive) forms to perform form validations both on server and client side
  • Responsible for providing user interface design for Web-based products including dashboards, widgets etc
  • Developed returns and refunds modules in POS for a prominent retail store
  • Environment: Java, Junit 4, JBOSS, HTML, CSS, JavaScript, Angular 2, Web pack, Oracle, Spring Data, Eclipse, Atom, Web services, Selenium, Maven, Junit, log4j, Bitbucket, SQL

Java Developer

Meltag Marketing Pvt Ltd
Hyderabad, Telangana
03.2018 - 04.2019
  • Company Overview: Developed a dynamic user dashboard with personalized content recommendations, leading to a 25% increase in user engagement
  • Involved in various phases of Software Development Life cycle (SDLC) of the application like requirement gathering, Design, Analysis and code development using Agile/ Scrum methodology
  • Designed and implemented XML parsing for XML order conformations, used JSF framework in developing user interfaces using JSF UI components, validator, Events and listeners
  • Framework leverages JSF features like Event handling, Validation mechanisms and state management
  • Developing in built traditional java web application using JSF and RICHFACES and created database pool, multi-pool, data source and mapped them to roles
  • Traded data with web server using AJAX without reloading the web page and used JDBC to manipulate the data on the System database Server
  • Have written PL/SQL stored procedures and involved in performance tuning of complex queries
  • Monitored the error logs using Log4j and fixed the problems and used JNDI to read the details of the login users
  • Used Multi-Threading to overcome the errors in the process of transactions and used J-Unit to do unit testing for the modules developed
  • Developed the different components of the application such as JSPs, Servlets, and DAO and used build ANT scripts and deployed the application on Web Sphere Application Server
  • Developed a dynamic user dashboard with personalized content recommendations, leading to a 25% increase in user engagement
  • Environment: Java1.6, JDBC, J2EE, JSP, JSF 2.0, JavaScript, Hibernate 3.2, Struts 2.0, Servlets, DAO, CSS, HTML, XML, AJAX, DOM, JUnit, JMS, PL/SQL, MVC, IBM WebSphere 7, Oracle 10g, log4j, JNDI

Java Associate Developer

Finastra
Hyderabad, Telangana
04.2017 - 03.2018
  • Participated in requirement analysis and design meetings to gather information and prepare the requirement and design documents
  • Developed the application using Struts2 MVC framework
  • Used Struts Tiles Framework in the presentation tier
  • Developed Struts Action classes
  • Used AJAX for asynchronous communication with server
  • Developed Session Enterprise Java Beans for encapsulating the business logic
  • Implemented UI screens using JSP, HTML, CSS, JavaScript and JSON
  • Developed Message Driven Beans (MDB) for asynchronous messaging
  • Used Log4J for efficient application logging
  • ANT was used for the entire build process
  • Used SVN for version controlling and Eclipse as IDE
  • Worked closely with QA and clients to identify and fix the defects
  • Environment: Java 1.5, Servlets, EJB, JSP, Struts2, SVN, HTML, JavaScript, XML, JUnit, JBoss, Eclipse, Linux, Oracle

Education

Master’s - computer science

Western Illinois University
Macomb, IL
01.2020 - 12.2021

Bachelor of Technology - Electronics and communications

JNTUH
Hyderabad, Telangana
01.2024 - 01.2025

Skills

JavaScript

MySQL

Spring Core/Boot

Spring MVC

RESTful

SDLC development

Unit and integration testing

AngularJS and reactjs

Hibernate ORM

Maven and gradle

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Timeline

Bachelor of Technology - Electronics and communications

JNTUH
01.2024 - 01.2025

Senior Java Full Stack Developer

Rivian
02.2022 - Current

Java Full Stack Developer

Lululemon
01.2021 - 01.2022

Master’s - computer science

Western Illinois University
01.2020 - 12.2021

Java-J2EE Developer

CBase Inc
05.2019 - 12.2020

Java Developer

Meltag Marketing Pvt Ltd
03.2018 - 04.2019

Java Associate Developer

Finastra
04.2017 - 03.2018

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Varun Kumar VandanapuJava Fullstack Developer