SUMMARY

• Over 9 years of IT experience as a JAVA/J2EE developer in the areas of Analysis, Design, Development, Coding, Implementation and Testing of web based and client server multi - tier applications.
• Expert level skills in application development using Java, J2EE, Spring Framework, Hibernate, JSP, JPA, Servlets, JDBC, HTML, JavaScript, J2EE compliant application servers,OOAD concepts, client/server, design patterns of J2EE architecture.
• Strong experience in Data Structures, Algorithms, Data Analytics, Data visualization and Concurrent programming.
• Expert in various Agile methodologies like Scrum, Test Driven Development,Incremental and Iteration methodology, Pair Programming, Agile Development Testing using Software Development Life Cycle.
• Very strong experience in Programming with Core Java, Multithreading, Collections, Java Socket programming.
• Extensive experience on developing web applications using Spring Boot, Spring Security, Spring Core, Spring MVC, Spring AOP, Spring Actuator, Spring ORM, Spring JPA and Spring REST.
• Strong experience in Securing API's using OAuth2.0 token-based authentication/authorization scheme using Spring Security.
• Expertise in java 8 features such as Lambdas, Parallel Streams, filters & functional interfaces.
• Extensive experience in developing Microservices using Spring Boot, Netflix OSS (Zuul, Eureka, Ribbon, Hystrix) and followed domain driven design.
• Expertise in developing J2EE applications using J2EE components, Design Patterns like Singleton, Prototype, Session Facade, Builder, Front Controller, Data Access Object.
• Proficient in creating and consuming SOAP and RESTful web services in Spring Boot using JAX-WS, JAX-RS, and Spring Rest Controller.
• Experience in designing, deploying, developing Web Services with SOAP and implementing the internet/intranet applications.
• Strong working experience on SQL Databases like MySQL, MS SQL Server, Oracle and NoSQL databases like Cassandra, MongoDB.
• Experience working with JPA, Hibernate, EclipseLink, Spring Data JPA, Spring JDBC, Spring Data Rest for object relational mapping and data persistence.
• Skilled in developing User Interfaces using HTML5, CSS3, Bootstrap, JavaScript, jQuery, Ajax, AngularJS, Angular, React JS framework.
• Have experience in Design, Development and Deployment of Java/J2EE web components on servers like Apache Tomcat, JBoss, IBM WebSphere and WebLogic.
• Strong experience in building massively scalable and highly available products using Python programming language.
• Hands-on experience in using message brokers such as ActiveMQ, RabbitMQ and Apache Kafka.
• Experience in using build/deploy tools such as Jenkins, Docker and AWS for Continuous Integration & Deployment for Microservices.
• Good experience on working with Amazon Web Services like EC2, S3, Amazon Simple DB, Amazon RDS, Amazon Elastic Load Balancing, Amazon SQS, AWS Identity and access management, AWS Cloud Watch, Amazon EBS and Amazon Cloud Front.
• Experience in writing ANT, Gradle, Maven and Jenkins build scripts, writing unit test cases using JUnit, Mockito, Easy Mock, Testing and used Log4j, Slf4j, Log InSight for bug tracking.
• Used Cucumber for services automation and created the Feature Files for Cucumber Automation.
• Experience in working with frontend testing tools like Karma, Jasmine, Chai, and Jest.
• Experienced in using Version Control Tools such as Git, Subversion, CVS, and Clear Case.
• Strong experience on production support and troubleshooting the complex issues.
• Excellent programming, analytical, problem solving and interpersonal skills with a keen understanding of business applications and a proven ability to adapt to new areas.
• Fast learner, good at team work and ability to adopt new technology.

TECHNICAL SKILLS

Languages: Java 1.7/1.8, PL/SQL, SQL, UML 2.3,TypeScript.

Java Technologies: J2EE, Servlets 3.1, JSP 2.1, JSF 2.2, JDBC 3.0, JavaBeans, Web Services (SOAP, WSDL, REST 2.0), Apache Kafka, AWS, XML, JSON, JMS, Spring Batch, Spring Cloud, Spring Cloud, Spring Framework, Hibernate, JDBC.

Web Technologies: DHTML/HTML, XHTML 2.0, JavaScript1.x, XML1.0, XSL, XSLT, XPATH CSS, jQuery, Angular JS, Ajax, HTML/HTML5 4/5, CSS2/3, Angular 2.x,ExtJs, JavaScript, jQuery, Bootstrap, GraphQL, Redux, React JS, Node JS

Development Tools: Eclipse, IBM RAD, JBuilder, NetBeans, MS Visual Studio, Spring Tool Suite.

Web/Application Servers: Tomcat7.x, WebLogic 10.3/9.2/8.1/7.0 , IBM WebSphere 7.x/8. X, JBoss, Apache Camel, WebSocket API.

Database: Oracle 11g, DB2, SQL server, PostgreSQL, MySQL, MongoDB, Cassandra, PL SQL, or informatica.

Platforms: Windows, Mac, UNIX, LINUX.

Testing Tools: JUnit, JIRA, Cucumber, Protractor, Jasmine, Selenium, REST Assured.

Version Control: CVS, SVN, VSS, GIT, GitHub.

Methodologies: Agile, Waterfall.

Build Tools: Gradle, ANT, Maven, Jenkins.

PROFESSIONAL EXPERIENCE

Sr. Full Stack Java Developer

Confidential | Columbus, Ohio

Responsibilities:

• Following Agile (Scrum) Methodology for developing application development.
• Developed modules using Core Java APIs, Collections, Java 1.8 (Streams), Jordan API(Dates), Multi-threading, Exception Handling, Generics, Enums, Java I/O and object-oriented designs patterns.
• Used Microservice architecture with Spring Boot-based services interacting through a combination of REST and Apache Kafka message brokers.
• Developed business components by using Spring Boot, Spring IOC, Spring AOP, Spring Annotations, Spring Cloud &Persistence layer by using Hibernate/JPA along with Web Services (RESTful).
• Implemented customized authentication in Spring Security to verify user-role and secure the user pages.
• Used JAX-RS for creating Restful web service and implemented authentication by using OAuth2 Security Framework.
• Implementation of Hystrix circuit breaker to avoid loss of messages during handling of messages at consumer level.
• Implementation of Zuul Proxy as the API gateway.
• Implemented Hibernate Template to great extent making use of HQL, Named Parameters, Named Queries, and interfaces such as Expression, Query, and Criteria.
• Used Hibernate Transaction Management, Hibernate Batch Transactions and Hibernate Cache Concepts.
• Design complex SQL Queries, stored procedures & triggers on SQL Server database.
• Used Stored Procedures for applications that needed to execute as part of a scheduling mechanisms.
• Developed UI using Angular 7, Bootstrap, TypeScript, for interactive cross browser functionality and complex user interface.
• Developed powerful Single Page Application (SPA) and dynamic responsive Web Application with Angular 7.
• Worked with Angular 7 Controllers, Directives, Services, Pipes, Guards, Angular Routing.
• Deployed Spring Boot based micro services Docker container using Amazon EC2 container services and using AWS admin console.
• Utilized AWS Lambda platform to upload data into AWS S3 buckets and to trigger other Lambda functions.
• Created computing and data resources on AWS using EC2.
• Configure Jenkins build Jobs for (CI) and (CD)and writing Python scripts on top of it.
• Administered and deployed applications into WebSphere Application Server.
• Developed Test Cases and performed unit test using JUnit with Mockito Framework.
• Developed and performed test cases using Jasmine and Karma for front end unit testing.
• Tested REST API using REST Assured framework.
• Design Shell scripts to filter and transform the huge amount of data in troubleshooting the issues.
• Created JSON request and validated the response using postman Interceptor and Swagger UI.
• Used Log4j for logging and tracing the messages.
• Used GIT for version control and involved in writing the build scripts using Maven.
• Used JIRA for defect management and to keep track of bugs and issues.
• Prepared documentation for some of the recurring defects and resolutions and business comments for those defects.

Environment: Java 8.0, Spring 4, Hibernate 4.2, Spring batch, Spring Boot, JPA, JMS, Angular 7, HTML5, CSS3, Eclipse, SQL Server, Swagger UI, Log4j, JIRA, Pure XML, Web Services, Kafka, Microservices, REST UI.

Full Stack Java Developer

Confidential | San Ramon, CA

Responsibilities:

• Worked on a SAFE AGILE based methodology which brings new approaches and changes to the team every PI.
• Developed and designed the web interface using HTML5, CSS3, JavaScript, jQuery, ReactJS, and Bootstrap.
• Built the reusable service components using ReactJS Components with Object Oriented JavaScript, jQuery, HTML5, CSS3 based on the visual designs.
• Developed various ReactJS components to help build the functionality and UI behavior using JavaScript.
• Used Redux as a store for storing multiple states of a React component.
• Used Redux Thunk as a middle ware for calling the APIs and setting the states with the JSON data.
• Worked with UI designers and User experience team to define screen designs. Developed angular partials based on UI screens.
• Designed and implemented an application using Spring Boot, Spring IOC, Spring transactions, Dependency Injection, Spring Annotations, Spring AOP, Spring Actuator, Spring Container managed transactions, Hibernate.
• Used Spring Security for authentication and authorization of users, Spring JDBC for easy database operations using JDBC template, writing row mappers and Spring Boot easy bootstrap applications from scratch.
• Implemented the authentication and authorization of the application using Spring Security and OAuth2.
• Worked on MongoDB and wrote code on find, update, save, insert data.
• Worked on data extraction in loading JSON data from the server-side content into MongoDB.
• Implemented the function to send and receive AMQP messages on RabbitMQ synchronously and asynchronously and send JMS message to Apache ActiveMQ on the edge device.
• Implemented Zipkins for distributed Micro Service Monitoring.
• Integrated Swagger UI and wrote integration test along with REST document.
• Developed all REST APIs using Hystrix commands and Feign clients for efficient fault tolerance and handling fallback mechanisms.
• Worked with unit testing of ReactJS applications using Jest and Spring Boot applications using JUnit, Mockito and performed end to end testing using Protractor.
• Worked on Jenkins for the Continuous integration (CI) and Continuous Deployment (CD).
• Utilized AWS Services platform to upload data into AWS S3 buckets and creating EC2 instances.
• Used GitHub to maintain the version of the files.

Environment: J2EE, HTML5, CSS3, AWS, jQuery, Ajax, Rabbit MQ, JSON, ReactJS, Spring Boot 2, Spring Hibernate 4.0, Swagger UI, Docker, Microservices, ActiveMQ, RabbitMQ, Spring Security, OAuth2, Bootstrap, RESTful web services, Web Sphere, SonarQube, Redux, Jenkins, Agile/Scrum Methodology, Maven, JIRA, JBoss, JUnit, Mockito, Jest, Protractor, Hystrix, Zipkins, TDD, MongoDB, Git, XML,LESS, Webpack, AXIOS

Full Stack Java Developer

Confidential | Tampa,FL

Responsibilities:

• Involved in Requirements gathering, Analysis, Design, Development and Testing of application using AGILE methodology (SCRUM) in a test-driven development (TDD) approach.
• Developed and designed the web interface using HTML5, CSS3, JavaScript, jQuery, Angular 2 and Bootstrap.
• Built Components using Angular 2 and worked on Angular directives. Implemented lazy loading and Dynamic loading in the Angular routers.
• Implemented HTTP requests using RxJS Observable library to handle multiple values over time.
• Developed prototype and project layout skeletons using Angular 2, jQuery, HTML5, and CSS3.
• Used various jQuery and Bootstrap plug-in like date picker, Bootstrap selectors.
• Implemented Microservices into existing system architecture. Developed Microservices business components and RESTful service endpoints using Spring Boot.
• Developed multiple enterprise applications using Spring Boot, Hibernate framework, Spring IOC, Spring MVC,Spring JDBC,Spring Annotations, Spring AOP, Spring Integration, frameworks, RESTful webservices.
• Implemented Spring IOC for Dependency Injection and to make the code loosely coupled and Spring AOP for logging purposes.
• Implemented SOAP based JAX-WS Web services interfaces for integrating multiple systems, code re-usability and consumed JMeter to test performance of SOAP protocol.
• Implemented RESTful web services which produces both XML and JSON files to perform tasks, RESTful web service using Jersey for JAX-RS implementation, which leveraged both web & mobile applications.
• Worked on creating, retrieving, updating and deleting documents in MongoDB.
• Configured JMS server setup, DB connection setup & deployed Returned items in Web Sphere Server.
• Setup the Continuous Integration (CI) & Continuous Development (CD) for the application using Jenkins.
• Worked on Jenkins for continuous integration with Gradle and GitHub.
• Used Log4j for validate functionalities and JUnit for unit testing.
• Implemented configured JIRA issue tracking software with Agile plug-in across all the company functions.
• Used IntelliJ IDEA IDE tool for application development.

Environment: J2EE, HTML5, CSS3, JavaScript, jQuery, Angular 2, TypeScript, Bootstrap, Spring Boot, Spring IOC, Spring MVC, Log4j, SOAP, RESTful, Microservice Architecture, XML, AWS, Mongo DB, CI/CD, Maven, IntelliJ IDE, JUnit, JMS, UNIX, Jenkins, JIRA, Log4j, Git.

Java Developer

Confidential

Responsibilities:

• Involved in various phases of Software Development Life Cycle (SDLC) of the application like Requirement gathering, Design, Analysis and Code development.
• Provided technical guidance to business analysts, gather the requirements and convert them into technical specifications/artifacts.
• Configured spring to manage Actions as beans and set their dependencies in a context file and integrated middle tier with Hibernate.
• Implemented Spring MVC architecture and increased modularity by allowing the separation of cross-cutting concerns using Spring AOP.
• Deployed flow of Execution in the Servlet Environment using Spring MVC and defined Navigation Rules.
• Used Spring Security for Authentication and authorization.
• Used Spring Core for dependency injection/Inversion of control (IOC).
• Used Hibernate Framework for persistence onto Oracle database.
• Wrote JavaScript validations to validate the fields of the user registration screen and login screen.
• Designed a network of web pages, where the user progresses through an application by selecting links, resulting in the next page being transferred to the user and rendered for their use using REST.
• Developed high-performance web applications using spring and XML Http Request.
• Configured JDBC in the application server.
• Extensively worked on writing complex PL/SQL Queries using joins, stored procedures, Functions, Triggers, Views, Cursors, Materialized Views, dB links, External views, indexes in Oracle DB&SQL tuning to reduce time in the application.
• Involved in debugging the product using Eclipse and JIRA Bug Tracking.
• Converted and automated builds using Maven and Make. Scheduled automated nightly builds using Jenkins.
• Test automation for web application using Cucumber.
• Configured and used WebLogic content management to display content in view components.

Environment: Java, JEE, Servlets, JMS, Hibernate, Spring, Web services, REST, UML, JavaScript, jQuery, Maven, Make, PL/SQL,Spring Security, Spring Data, Microservices, REST, Hibernate, Oracle, XML, XSD, Log4j, Oracle, PL/SQL, JUnit, AJAX, Jenkins, CSS, JSP, JNDI, JIRA, Cucumber.

Java Developer

Confidential

Responsibilities:

• Used Structs framework MVC in the development of new modules based on requirements.
• Utilized various utilities like JSP, JSTL, JavaScript, HTML, & CSS, jQuery.
• Refactored existing project to make it more RESTful and thread safe.
• Involved in the creation of dynamic web pages with the use of JSP and HTML.
• Involve in the development of front-end screen design using JSP.
• Implement client side and server-side programming using HTML and JavaScript.
• Implement Core Java technologies like Multithreading, Collections and Exception Handling to solve complex business requirements.
• Debugged Java classes used to modify web pages such as Business Objects and Data Access Objects.
• Implemented JDBC to perform the database calls from the Java layer.
• Used JDBC to persist Java Objects into the database.
• Tested many components of web application and documented my observations.
• Participated in unit testing, integration testing and installation of the system.
• Contributed to the decision making of the software and hardware requirements and tool evaluations.
• Implemented logging for the whole application using Log4j.
• Involved in daily scrum meetings, worked on the sprint tasks in the Agile Scrum development.

Environment: Core Java, J2EE, HTML, CSS, JSP, JDBC, JSP, JavaScript, jQuery, XML, JSON, Servlets, Spring Framework, PL/SQL, Hibernate, Oracle, JAXB, RESTful, Log4j.