SUMMARY:

• Over 8 years of experience in designing and developing Java/J2EE Client and Server side Enterprise Applications using object oriented methodologies, enterprise technologies, frameworks and design patterns.
• Extensive experience in Front - End UI technologies like HTML4/5, XHTML, DHTML, CSS2/3( using SASS and LESS ), Bootstrap, Angular JS, Angular2.0,4.0 in developing dynamic and responsive web pages.
• Good experience in Client Side Scripting like JavaScript/Typescript, ES6 to build highly interactive web pages.
• Extensively used view rendering JavaScript frameworks like jQuery, React JS and HandleBar.JS.
• Experience in ReactJS which is JavaScript library used for building reusable UI components.
• Used ReactJS virtual DOM which is a JavaScript object. This will improve apps performance and it can be used on client and server side as well as with other frameworks.
• Implemented React JS and working with Redux and Flux architecture.
• Experience in developing MVC based Java script frameworks like Angular JS, Back Bone JS, Ember JS and KnockOut.JS.
• Experience in MVVM frameworks and developing single page applications using Angular 2/4.
• Experience in developing Angular 4 advanced features such as interfaces, nested components, services, routing and modules.
• Experience in developing client side validations ns using Angular 4 and in developing Custom pipes, Shadow DOM.
• Experience in developing network applications using Node.js with an event-driven, Asynchronous approach and single threaded model with event loops.
• Good understanding on Server-side JavaScript structures like Node.JS with Express.JS and Hapi.JS.
• Experience in applications using SOA architecture with SOAP, Restful Services and used XML for message communication.
• Extensively used XML documents with XSLT and CSS to translate the content into HTML to present to GUI.
• Developed SOAP services using Axis-2 and Apache CXF.
• Used Spring Boot to develop and deploy both RESTful web services and MVC applications.
• Developed Micro services based on RESTful API utilizing Spring Boot with Spring MVC.
• Implemented exception handling in Java Spring boot for REST API by making use of Exception Handler and Controller Advice annotations.
• Worked with spring cloud config, Ribbon, Hystrix and Zuul API-Gateway in the spring cloud and Netflix Eureka service to provide weighted load balancing based on several factors like traffic, resource usage.
• Implemented security functionality OAuth 2.0, Spring security, SSL and site minder (SSO).
• Implemented secure authentication with LDAP OAuth2 for generating tokens in the application using Spring Security.
• Using Swagger Framework, actualizing the Restful API and Swagger gives the rich UI to test API .
• Implemented Business layer using Spring 4.0 (IOC, AOP ), Spring MVC and persistent layer using DAO and Hibernate.
• Solid Experience with Java based ORM frameworks such as Hibernate, JPA, Spring Data and Ibatis.
• Implemented Hibernate first-level cache and Second Level Cache.
• Worked with NoSQL based ORM frameworks like Mongoose Connector and Cassandra Node Driver.
• Excellent experience with Relational databases like MySQL, Oracle, SQL Server, DB2 and No SQL databases like Mongo DB, Couch DB and Cassandra.
• Experience in writing complex SQL Queries, Stored Procedures, Triggers, Cursors, and Functions.
• Used java SE8 features like stream, lambda expressions, functional interface and type annotations and worked with core java concepts like Multithreading, Transaction Management, and Exception Handling.
• Experience in architect, design, build and prototyping models using the design patterns like Session Facade, Service Locator, Singleton, Abstract Factory and Factory Method.
• In depth and extensive knowledge of Splunk architecture and various components. Expert in Splunk Development, Configuration and Administration and used Kibana to view using Elastic search (ELK).
• Experience in messaging queue services like JMS, IBM MQ, Rabbit MQ, Active MQ and Apache Kafka.
• Experience in developing Apache Kafka as a distributed publish-subscribe messaging system and a robust queue that can handle a high volume of data.
• Kafka is suitable for both offline and online message consumption. Kafka messages are persisted on the disk and replicated within the cluster to prevent data loss.
• Experience in Deploying and Configuring Application & Web Servers such as Oracle WebLogic, IBM WebSphere, JBoss, Glassfish and Apache Tomcat.
• Experience in Integration tools Oracle SOASuite/BPEL/Fusion Middleware, web-methods and Apache CAMEL.
• Involved in using Amazon Web Services like RDS, EC2, Redshift, SQS, SNS, Cloud Watch and S3.
• Designed and created highly scalable, highly available, fault tolerant, highly secured, distributed infrastructure (IAAS) using EC2 instances, S3, EBS, API Gateway, Elastic Bean Stalk, ECS.
• Deployed our Application on Pivotal Cloud Foundry which is used to reduce the development overhead by providing a ready to use platform.
• Wrote unit tests for JavaScript based Applications using Karma, Jasmine (Angular), Protractor, Mocha and Chai (React) testing frameworks.
• Involved in writing test cases and test plans using TestNG, Spock, Mockito and Junit Power mock, HQL embedded DB to test databases.
• Proficient in creating rules using Business Rules Engines: Drools, ILOG.
• Experienced in building applications using Maven, Gradle and ANT tools.
• Involved in using Grunt as a JavaScript Task Runner which can be used as a command line tool for JavaScript objects. Grunt can perform repetitive tasks very easily, such as compilation, unit testing, minifying files, running tests, etc.
• Tools like Gulp are often referred to as "build tools" because they are tools for running the tasks for building a website.
• Proficient in using the Webpack to compile JavaScript modules.
• Extensive hands on experience in setting up CD/CI pipelines using Jenkins, Bamboo and GOCD.
• Used log4j which is a reliable, fast and flexible logging framework (APIs) written in Java, which is distributed under the Apache Software License.
• Good Knowledge on Docker components like Docker Engine, Hub, Machine, Compose and Docker Registry and worked on configuring Docker Tool Box and Kubernetes as deployment manager.
• Used various version control software such as SVN, GIT, GIT LAB, CVS, Big Bucket for maintaining code repositories.
• Worked on various SDLC (Software Development Life Cycle) from Waterfall to Agile (SCRUM) models.

TECHNICAL SKILLS:

Programming Languages: Core Java, C, C++, SQL

Web Technologies: HTML5, CSS3, JavaScript, AJAX, JSON, Bootstrap, jQuery, AngularJS, ReactJS, Ember JS, Knockout JS, Back Bone JS, Flux, Redux, NodeJS, Express JS.

J2EE Technologies & frameworks: Servlets, EJB, JSP, JSF, JDBC, SOAP, WSDL, REST, XML, XSD,JAXP, JAXB, JPA, Spring, Hibernate, Spring MVC, Spring Boot, Spring Data, Spring Batch, Spring cloud.

Databases: Oracle 8i/9i/10g/11i, DB2, SQL Server 2000/2005/2008, MYSQL, MongoDB, Cassandra.

Application/Web Servers: Oracle Web logic, IBM Web Sphere, JBoss, Glassfish, Apache Tomcat

Messaging Services: JMS, Active MQ, Rabbit MQ, Kafka

Build & Configuration Tools: Ant, Maven, Gradle, Jenkins, Gulp, Web pack, Chef, Puppet

Testing Tools: Junit, TestNG, Mockito, Jasmine, Karma, Mocha, Chai.

Version Control Tools: GIT, SVN, CVS, Bitbucket, TFS

Project Management Tools: JIRA, Rally, Microsoft Project

Cloud Technologies: AWS, EC2, EBS, S3, Docker, ECS, 3API Gateway.

Windows, Linux, Unix, MS: DOS

IDE s: Eclipse, Visual Studio, Intellij, Spring Tool Suite, Sublime Text, Atom

PROFESSIONAL EXPERIENCE:

Confidential -Kansas City-MO

Sr Full Stack Developer

Responsibilities:

• Developed Web pages from scratch using HTML5, CSS 3( using SASS ) and JavaScript .
• Used Angular 4 component router for navigation. Worked with Angular 4 directives, components, pipes, and injectable.
• Programmed in Angular 4 to upload (post) files/images to the AWS S3 browser from the Front-end by installing NPM package of AWS-SDK .
• Created Typescript reusable components and services to consume REST API's using Component-based architecture provided by Angular 4.
• Involved in the development of services with Angular 4 injectable property, as to make the service available for dependency injection when creating components.
• Developed various single page applications (SPA) using REACT JS.
• Involved in responsive design and developed a single ISOMORPHIC responsive website that could be served to desktop, Tablets and mobile users using React.js .
• Closely worked with Application using React.JS and Node.js libraries NPM , gulp directories to generate desired view.
• Used Postman tool to test the API workflow tested on the JSON files which are generated by the NodeJS, Hapi JS.
• Utilized create-react-app to launch product to stay update with the most current web pack and babel build configurations.
• Performed Verification and validation process for the code written by making use of Jasmine and Karma JavaScript testing framework by testing across various scenarios of the Angular 4.0 applications.
• Worked with the Node package manager ( NPM ) along with Gulp .
• Worked with SASS to build better and optimized Style sheets.
• Designed and developed RESTFUL web services using Spring Boot and Jersey framework.
• Used Spring Boot which is radically faster in building cloud Micro Services and develop Spring based application with very less configuration.
• Worked with various features in spring such as Spring AOP , Spring Transaction management.
• Implemented Spring Bean Factory using IOC Configured Bean properties using dependency injection .
• Used Apache Kafka in cluster as messaging system between the APIs and microservices and worked on Splunk search processing language (SPL) queries, reports, dashboard and logging using Log4J.
• Migrating existing application into REST based Micro services to provide all the CRUD capabilities using Spring Boot .
• Used Swagger specification for documenting REST API's which exposes description of a RESTFUL web services to different clients.
• Worked with Netflix OSS Eureka service in spring cloud for service registration and discovery and spring config for centralized configuration and used ribbon for client-side load balancing.
• Worked with Zuul Api gateway for Authentication and hystrix circuit breaker for fault tolerance. Created various docker images from the docker containers and published these images in the Docker hub repository.
• Created various Docker images from the Docker containers and published these images in the Docker hub repository. Deployed the Dockerized Spring Boot application using AWS Elastic Bean Stalk (EBS).
• Worked on Deployment Automation of all micro services to pull image from Private Docker registry and deploy to Kubernetes Cluster.
• Deployed EC2 instances provisioning on AWS environment and implemented security groups, administered Amazon VPCs.
• Used Node JS to run Angular 4 on server with mock JSON data and completed the UI development independent of server.
• Created AWS Lambda functions for AWS config rules using Node . js . Heavily used Lambda function on text object methods Context object properties using Node.js .
• Wrote services with Angular 4 to store and retrieve user data from the Mongo DB for the application on devices with HTTP service.
• Developed application from scratch including Mongo DB server setup and Hapi-JS server development.
• Used Mongoose API in order to access the Mongo DB from Node JS and used Angular CLI and NPM for scaffolding the Angular 4 application.
• Authenticating Users and to provide the security to RESTful web services using OAUTH 2.0.
• Extensively used Git for version controlling and regularly pushed the code to GitHub.
• Used JIRA as the bug tracking system to track and maintain the history of bugs/issues on everyday basis.
• Used GIT for version control and Jenkins for Continuous Integration and Continuous Deployment ( CI/CD ).

Environment: Angular 4, HTML5, CSS 3, JavaScript, AWS S3, NPM, React JS , Redux, Gulp , Express.js, RESTful Web Services, Web Pack, Babel, Jasmine, Karma, Spring Boot, Jersey, Micro Services, Rest Services, AWS, Node JS, Cassandra, GitHub, JIRA, Jenkins, Swagger, Netflix OSS Eureka, ribbon, Zuul Api gateway, hystrix circuit breaker, Docker.

Confidential -Atlanta, GA

Full Stack Developer

Responsibilities:

• Developed a Micro Service Oriented application with React JS in the front end and Spring Boot services in the back end .
• Involved in development, design and implementation front end part of the widget based application using HTML5, CSS3-LESS, AJAX, Bootstrap 4.0 .
• For client-side view rendering services, used React JS typically used various predefined redux libraries.
• Configured React-Redux for state management and React-Router for programmatic navigation.
• Experience in developing Node.js in a single threaded program and the same program can provide service to a much larger number of requests than traditional servers like Apache HTTP Server.
• Extensively worked on Microservices for creating API’s services with Spring Boot to modularize code and implemented Swagger for dynamic API documentation.
• Developed RESTFUL web services using Spring Boot and Apace CXF framework.
• Used complete annotation driven approach to develop the application using Spring Boot and was involved in setting up the Spring bean profiling.
• Worked with Spring Boot for automatic configuration and starter for Maven configuration and performed metrics and externalized configuration.
• Implemented email and SSO integration using Node.js for backend.
• Implemented Store-Redux for holding the whole state tree of application and Reducer-Redux for describing actions.
• Used Axios AJAX request to data from back-end based on user interface input and post updated data back to backend.
• Mocha test runner and Chai test framework are used to test React JS components.
• Web pack module bundler and Babel java script compiler are used accompanying React JS.
• Implemented Spring Boot to create a CRUD backend for our React -fronted application.
• Experience in developing and publishing RESTful web services using Node JS Asynchronous programming and express JS.
• Migrating existing Designed and developed RESTFUL web services using Spring Boot and Jersey
• framework. Used Swagger specification for documenting REST API's which exposes description of a RESTFUL web services to different clients.
• application into REST based Microservices to provide all the CRUD capabilities using Spring Boot.
• Bottle micro-framework implemented with RESTful service and used WADL (Web Application Description Language) for modelling the resources provided by the services and relationships between them.
• Junit is implemented along with Mockito to perform unit testing on our RESTful web application.
• Implemented JWT (JSON Web Tokens) for creating tokens to assert claims in the application and thus providing authentication of RESTful services.
• Modules for the Front-end are integrated to Back-end using Hibernate framework.
• Published message services using Spring AMQP’s Rabbit Template and subscribes to the messages on a POJO using Message Listener Adapter .
• Worked with Cassandra Node Connector for database persistence to interact with Cassandra NOSQL DB with Spring Data to unify and ease the access to Cassandra persistence stores.
• Splunk is implemented in the application for log errors, exceptions, and business logic and log analytics. Gradle build tool is used to deploy the application on the web servers i.e. JBoss .
• Integration of automation batch run job with Jenkins . Worked with Jenkins Continuous Integration and Continuous Deployment ( CI/CD ).
• Implemented Spring Cloud - Netflix OSS Stack along with using Ribbon for client-side load balancing, Netflix Zuul API Gateway with Eureka service registry for reverse proxy infrastructure and Hystrix Circuit Breaker for fault tolerance.
• Deployed the Dockerized Spring Boot application that is intended to be run on dev local machine using PCF (Pivotal Cloud Foundry).
• Behavioral and Integration testing is done using Cucumber and Selenium respectively.

Environment: JavaScript, React JS-Redux, HTML5, CSS3-LESS, AJAX, Bootstrap, jQuery, Spring Security, Rabbit MQ, Spring Data, Spring Batch, Quartz Scheduler, Hibernate, Spring Boot, Micro services, Restful services, Netflix OSS, Eclipse Java EE IDE, Jenkins, Spring Cloud-Netflix, Splunk, MySQL, Docker, Apache tomcat, Jenkins, Netflix Zuul API, Ribbon, Eureka, Hystrix, JUnit, Mockito, Mocha, Chai, Selenium, Cucumber, Cassandra DB, Cassandra Node Connector, Gradle, JBoss, JIRA, JWT, WADL, Web pack, Babel.

Confidential -Cleveland-OH

Java Developer

Responsibilities:

• Involved in analysis, outline and advancement and testing periods of the application improvement ( SDLC ) utilizing Agile Scrum procedure.
• Developed Front-end pages using HTML , CSS3 (using SAAS ), JQuery and JavaScript .
• Used Angular JS to create views to hook up models to the DOM and synchronize data with server as a Single Page Applications.
• Worked on Angular expressions and built-in directives to render functionality to the UI.
• Implemented various AngularJS filters against data sets to filter and formatted data currency, strings rendered in the UI.
• Worked with AngularJS and jQuery for DOM manipulation and two-way binding. Implemented AngularJS controllers to update entity models.
• Used custom AngularJS Filters to provide better search experience. Deployed the drools rules as a service in J2EE stack environment.
• Used AJAX and Custom HTML Helper Classes to implement asynchronous calls to the server to update the changes.
• Experience in developing RESTful web service usually defines a URI (Uniform Resource Identifier), which is a service that provides resource representation such as JSON and a set of HTTP Methods.
• Used RESTful Web Services making HTTP protocols as a medium of communication between client and server. A client sends a message in form of a HTTP Request and the server responds in the form of an HTTP Response.
• Developed a Module that enables the administrator to provide access rights to users based on their credentials. Used AJAX Controls like Script Manager and Update Panel to develop the GUI . Used Spring MVC to implement MVC Design Pattern.
• Responsible for creating Model/Value Objects in MVC Design Pattern. Involved in writing Spring Container and Controller classes.
• Worked on server-side validation using various web forms through annotation based approach.
• Created various Advice (before, after) methods as required using Spring AOP .
• Hibernate ORM framework used to interact with database through Hibernate query language ( HQL ).
• Hibernate second-level cache is set up in two steps to decide which concurrency strategy to use and configuring cache expiration and physical cache attributes using the cache provider.
• Used Hibernate for connecting to the database and mapping the entities by using hibernate annotations.
• Wrote SQL Queries, PL/SQL stored procedures, triggers, packages on Oracle database.
• Configured Log4j for adding the debugging information in the code base.
• Implemented security functionality for various projects using Site minder (SSO).
• Deployed our Application on Pivotal Cloud Foundry which is used to reduce the development overhead by providing a ready to use platform.
• We used Load Balancer in Pivotal Cloud Foundry to improve the performance and reliability of the server.
• Deployed a single instance of HAProxy for test environments in pivotal cloud Foundry.
• Implemented the function to send and receive AMQP messages on Rabbit MQ synchronously and asynchronously, and send JMS message to Apache Active MQ on the edge device.
• Used Rabbit MQ for transport of data in Queue in between components of the application.
• Integrated testing methods implemented by using Karma and Jasmine .
• Performing unit Testing utilizing JUnit and ridiculing systems like JMock and Mockito and ensured code changes won’t break existing Unit Tests.

Environment: HTML, CSS3, JQuery, JavaScript, Agile, Angular JS, AJAX, HTML, Spring MVC, Spring Container, Spring AOP, HQL, Hibernate, SQL, Log4j, Pivotal Cloud Foundry, HAProxy, Rabbit MQ, Apache Active MQ, Karma, Jasmine.

Confidential, Arbor, Michigan

Java Developer

Responsibilities:

• Designed the user interface screen and its functionality as per user requirements.
• Developed dynamic web pages using HTML , CSS , Bootstrap , JQuery and AJAX for building up a Monolithic application.
• Created responsive UI modules using Backbone JS with hard coded dependency of Underscore JS in combination with Handlebar JS for templating.
• Used Backbone JS to utilize its minimal set of data-structuring (models and collections) and user interface (views and URLs) primitives for building a MVC work flow design.
• Performed a lot of DOM manipulations using native JS and jQuery for loading and manipulating dynamic content on webpages.
• Used JQuery in developing the Rich Internet Applications (RIA) with AJAX mechanism and JSON as a data exchange tool.
• Created Mock-up designs and developed various functionalities with JavaScript and JQuery.
• Utilized Futures and Spring Framework to make Asynchronous calls to the application.
• Developed Rest Web services using Spring MVC and migrated few services from servlets to Spring MVC.
• Responsible for using Spring MVC to develop REST web services within the application.
• Developed application on Spring framework by utilizing its features like Spring Dependency injection, Spring Beans, Spring Security, Spring JPA, Spring AOP, Spring IOC, Spring Web flow using MVC.
• Used Spring Gem Fire Cache Transactions with Springs Declarative Transaction Management and their annotations.
• Used Spring Transactions in the application and developed Session beans for the business logic at the middle tier level.
• Implemented the Spring IOC for the core business application logic and used Hibernate as persistence framework.
• Implemented Spring Batch for processing large volumes of records, including logging/tracing, transaction management, job processing statistics, job restart, skip, and resource management in the application using Quartz scheduler .
• Used spring batch framework to create custom readers and writers to work with the application. Used spring batch framework to update data in databases.
• Worked with spring batch to convert xml files to data base records.
• Created custom readers, processors, Validators, Field Extractors for various Spring Batch applications.
• Spring Security designed for authorization and authentication and manages the CORS and CRSF security issues.
• Used Log4J to capture the log that includes runtime exceptions.
• Designed new queries in app to enhance MySQL database performance.
• Developed stored procedures, triggers in MySQL for lowering traffic between servers & clients.

Environment: HTML, CSS, jQuery, Bootstrap, Less, CSS, Ajax, JQuery, JSON, Spring MVC,, Spring Gem Fire, Spring Batch Framework, Spring Security, Drools Engine, MYSQL.

Confidential

Java Developer

Responsibilities:

• Involved in developing the business components and responsible for developing the user interfaces using JSPs.
• Developed JSP's with Struts custom tags and implemented JavaScript validation of data.
• Primarily focused on the spring components such as action Servlets, actions, Model and View Objects, View Resolver.
• Used JavaScript for the web page validation and Struts Validator for server side validation.
• Wrote the high performance multi-threaded Java code using singleton, mediator, visitor, facade, observer, template, factory, publish and subscribe design pattern.
• Involved in the extensive coding of JavaScript to handle the client-side validations.
• Worked on Struts framework and production support issues of the existing applications.
• Development of Action Forms, Action Servlets, Action and Validating Action Forms in Struts framework.
• Used Strut and spring frame works to design and develop applications. Implemented the project using Singleton, Factory Design Patterns.
• The Strut Validator frame works are used for server-side and client-side validations.
• The Strut Tiles framework for developing User Interface.
• Coded JDBC calls in the Servlets to access the SQL Server database tables.
• Used SQL and PL/SQL queries to perform database operations on Web Sphere.
• Developed action classes and action form classes, created JSP’s using Strut Tag libraries and configured in config.xml, web.xml.
• For encapsulating the dynamic functionality TLD (Tag Library Descriptor) and used JSTL tags for populating data on to JSPs. The Strut framework is implemented to enable JDBC Connection for data access.

Environment: Java (v6), JavaScript (v1.8), JSP, spring, Struts (2.x), EJB, SQL, PL/SQL, JDBC, Eclipse, Web Sphere (v 7.0).

Confidential

Associate Software Engineer

Responsibilities:

• Experience in developing enterprise applications using Struts, Spring, JSF, JDBC, JSP, Servlets, XML, PL/SQL. Developed applications using JAVA Spring Framework, Spring MVC and Spring Core.
• Involved in requirement and impact analysis, designing the enhancements across the various modules and development using Java/J2EE components like JSP, Servlets and JDBC.
• Used different Core Java concepts such as Multi-Threading, Exception Handling, Collection APIs to implement various features and enhancements.
• Implemented Business logic in the middle-tier using Java classes, Java beans.
• Used JIRA for bug tracking. Experience in working with version control system GIT. Use Maven build tool to maintain Project dependencies.
• Developed the presentation layer using Struts Framework, JSP, Servlets, JavaScript, JQuery, and AJAX.
• JSP & JavaScript are used to create the front-end development. The User Interface (UI) components are implemented using HTML, CSS.
• Developed stored procedures and triggers using PL/SQL on Spring JDBC template to access and maintain the application database.
• Designed and implemented RESTful web APIs. Compiled the project modules on MAVEN and deployed them using ANT script.
• Actively involved in client meetings and requirement gathering sessions to evaluate and analyse the IT business requirement standards.
• Worked with team members and business analysts in project planning sessions to create the working model.
• Implemented Junit and JavaSIM test cases to test the application functionality and to ensure code coverage. Used Agile and Scrum methodologies to improve the efficiency of the applications.

Environment: Java, J2EE, JSP, Multi-threading, Eclipse, Struts2, XML, XSLT, XPATH, Design Patterns, IBM DB2, WebSphere Server, web services (Soap and Rest), UML, HTML, CSS.