SUMMARY

• Over 7+ years of experience working on JAVA/J2EE applications including UI templating and designing with HTML and Javascript frameworks. Well knowledge on professional tech stack and Software Development Life Cycle methodologies that includes development, system testing, maintenance and deployments.
• Good knowledge of implementing MVC architecture on client side using AngularJS, React with redux, React with flux, Backbone JS, Ext JS, knockout JS.
• Experience in configuring and deploying applications on different application servers like ApacheTomcat, Weblogic, IBM WebSphere, JBoss and web servers like Apache HTTP Server, Nginx, Caddy etc.
• Experience in developing using RESTful Web services using JAX - RS API and Jersey framework. Developed Restful services with JAX-RS with Spring REST.
• Experience in using javascript testing frameworks like Karma, Jasmine, Protractor for Angular 2.0/4.0 and Mocha and chai for React Js and Node JS.
• Experience in developing User Interface with different technologies like HTML5,CSS3, JavaScript. Developed applications with AJAX for handling asynchronous calls that follows W3C Web standards.
• Good understanding of Javascript ES-6 arrow functions, Object destructuring, block-scoped constructs, template literals, promises, multi-line strings and ES-7 async functions, Observables, Object Rest/Spread Properties.
• Experience in configuring and setting up Microsoft Azure Hybrid connection to pull data from SAP systems. Proficient in creating solutions Architecture based upon Microsoft Azure PaaS service.
• Great experience of working with authorization and authentication of web services using OIDC (Open ID Connect) on top of OAuth 2.0, site minder (for pol based authentication and single-sign on) and JWT (JSON web tokens to securely transmit information between parties as a JSON object)
• Expertise in Developing applications using node JS Socket.io programming for persistence connection from client to the server.
• Great knowledge of writing PL/SQL scripts for executing more than one query at a time. Proficient in creating views for tables, writing stored procedures, writing Triggers.
• Strong experience in working with Relational databases like Oracle, MySQL, Microsoft SQL Server, PostgreSQL, IBM DB2 etc and NoSQL databases like MongoDB, CouchDB, GemFire, Redis, HBase etc.
• Expertise in implementing Spring JTA for transaction management and Spring JDBC to interact with Databases.
• Experience in using Mongoose connectors for mapping pure javascript objects to the MongoDB. Great understanding of Apache Cassandra driver for Node Js for Parallel Execution, request pipelining.
• Expertise in working with JAVA8 features like Functional Interfaces, Lambda functions, Stream API, Time API, Transaction Management, Exception Handling, Collection API.
• Good experience with automated Java based logging frameworks like log4J, sl4J, log-common.
• Strong Experience in working with JAVA based testing frameworks like JUint, Selenium, TestNG, Mockito, Spock, Cucumber, Powermock, MockMvc, etc.
• Proficient in implementation of spring frameworks like Spring MVC, Spring IOC/DI, Spring REST, Spring AOP, Spring Transaction Management, Spring Data, Spring DAO, Spring Batch.
• Experience in SOAP using JAX-WS API ad Apache CXF framework and automated the documentation using Swagger and WSDL.
• Experience in developing various Web applications using Monolithic architecture using the technologies like Servlets, JSP, Structs, JSF, Spring I/O, Spring REST, Spring Security.
• Good knowledge of Working on cloud Amazon Web Services (Amazon EC2, Amazon S3, Amazon simple DB, Amazon Elastic Load Balancing, Amazon SQS, Amazon EBS and Amazon cloud front)
• Experience in Docker Container to address every application across the hybrid cloud and Docker for better collaboration and innovation.
• Expertise knowledge of creating instances using Amazon EC2 and using lambda server less programming. Proficient in using Aws Elastic Beanstalk for handling capacity provisioning and monitoring application health.
• Experience in using various ORM’s for mapping objects to Databases like Hibernate ORM, Mongoose ORM. Proficient in using Spring JTA (java Transaction API) for transaction management to deal with more than one database, Spring Batch for automated complex processing of large volumes of information.
• Expertise in using Hystirix (circuit breaker) library for lowering network latency and fault tolerance and Zuul gateway for routing, monitoring, security. Implemented the new message retry mechanism using Kafka in the event of downstream systems. Also implemented Kafka to act as a broker between the consumer and the producer.
• Expertise in implementing MVVM architecture on client side using Angular 2.x and above versions with typescript 2.7.
• Good knowledge of configuration management in Spring cloud using Zookeeper. Expertise in using Spring Cloud-Netflix OSS stack for micro services deployment and auto configurations like Ribbon for client-side Load balancing.
• Expertise in using Hibernate ORM, Ibatis for implementing persistence context using JPA (Java persistence API) which is a first level cache. Implemented flushing for batch process in Hibernate. In Hibernate implemented second level cache using EH cache, OS cache, Swarm cache, JBoss cache.
• Hands-on experience working with nodeJS platform and using NPM for library management and BOWER for dependency management.
• Strong working knowledge on deploying the pivotal cloud foundry to deploy PAAS (Platform as a service), IAAS (Infrastructure as a service) and to run own applications.
• Experience in using automation build tools like Bamboo, Jenkins, GoCD at server level and Maven, ANT, Gradle at development level (local).
• Deployed the Zero Down Deployment using Kubernetes orchestration service application. Automated the deployment process by integrating code repository using build pipe line Jenkins, Bamboo and GoCD for continuous deployment.
• Experience in working with various version controlling tools like Git, SVN, Bitbuckets, TFS, CVS and different Project management tools like JIRA, Rally, Microsoft Project.
• Hands on experience in publisher and subscriber model with queues (JMS with active MQS, IBMQ). Implemented a metrics collection mechanism for the server by utilizing Apache Kafka to stream server-side events.
• Expertise in working with Hapi.JS to build reusable application logic by avoiding spending time on building infrastructure.
• Experience in using kibana and splunk for dashboard for log data and creating charts for analysis. Proficient in implementing ELK (elastic search, Logstash, kibana) for searching and server-side data processing pipeline to ingest data from multiple sources simultaneously.

TECHNICAL SKILLS

Programming Languages: C, C++, Java, PL/SQL

JavaScript Frameworks: Angular JS, Angular 2+, jQuery, Node.js, Backbone.js, React.js, Express.js, Ember.js, Handlebars.JS

Java/J2EE Technologies: Servlets, Spring, EJB, JPA, JTA, JDBC, JSP, Thymeleaf, JSTL, Java 1.8

Frameworks: Struts 2.0/1.0, Hibernate 4.x/3.x, Spring 3.0, Spring Batch, Spring Security, Spring AOP, Spring Core, JSF, iBATIS, Spring IOC

Web Technologies: HTML, HTML5, CSS/CSS3, AJAX, jQuery, Bootstrap, XML, Grunt, Gulp, JSON.

Database: SQL Server, MySQL, Oracle, Mongo DB, DB2

Cloud Technologies: Amazon EC2, S3, simple DB, Elastic Load Balancing, SQS, EBS, cloud front, EKS and PCF.

Web Services: XSD, WSDL, Apache Axis, SOAP, Restful, GraphQL, JAX RS, JAX WS

Messaging: JMS (Java Message Service), IBM MQ, Apache Active MQ, Apache Kafka

Web Servers: Oracle WebLogic 10.x/9.x, IBM WebSphere 8.x/6.x, Apache Tomcat 8.0/7.x/6.x

Application Servers: ApacheTomcat, WebLogic, IBM WebSphere, JBoss

Methodologies: Agile, Waterfall, OOAD, SCRUM

Testing Tools: JUnit, Mockito, Jasmine, Karma, Mocha, Chai, Selenium

Version Control: SVN, CVS, GIT,GITLAB

Build Tools: Maven, Gradle, ANT

IDEs: Eclipse IDE, RAD 6.0/7.0, Intellij IDEA, Spring Tool Suite (STS)

Operating Systems: Windows, Linux and UNIX

Software: Visual Studio, Rational Rose and Microsoft Office

PROFESSIONAL EXPERIENCE

Confidential, Florida

Java Full Stack Developer

Responsibilities:

• Utilised node-jsonwebtoken module to digitally sign and verify the tokens for API authentication mechanism.
• Deployed the application from jenkins to the Nginx running on AppService instance using the SSH protocol and rsync utility.
• Used GITLAB for Version Control to maintain merge request policy with different branch for different environments
• Developed the functionalities under Agile Methodology, JIRA processes and used JIRA for task assignment, bug tracking and fixture.
• Used rxjs 6 of Angular 6 with the new methods and the new importing style according to the package structure change in Angular 6.
• Managed the Angular state using rxjs powered state management solution NGRX.
• Extensively utilised the methods available in async library like async.parallel(), async.waterfall(), async.whilst(), async.eachof() etc to make the Oracle database transactions.
• Implemented the automatic documentation for the API using the Swagger an OpenAPI specification.
• Used Continuous delivery / Continuous Integration (CD/CI) tool Jenkins to build the project upon passing the test cases written using cucumber.
• Implemented Angular Authentication using the HTTP interceptors and HTTP Client.
• Used Splunkfor automated logging of error messages.
• Integrated third party grids into the Angular app like ag-grid, handsontable etc .
• Migrated the code from Angular 5 to Angular 6 by making the utilization of the new commands provided by angular CLI 6 like ng update, ng add and also implemented the multiple project support with angular.jsonprovided in Angular 6.
• Developed a custom logging microservice using the technologies Angular 6,Node js and Oracle DB which can be Integrated into the existing application modules to log all the actions performed on the files like Approve, Cancel, Export etc.
• Implement the web application using Full Stack technologies (Oracle DB, Express, Angular 6, Node.js) along with HTML5,CSS3, JavaScript, jQuery, Bootstrap and other web technologies.
• Created the server in node js using the Express middleware.
• Unit testing is done using the jasmine for the code written using the Angular framework.
• Worked with Apigee gateway to Handle the Authentication and Authorization for the microservices before the requests reaches APIs.
• Utilized the static content delivery and caching features of Apigee gateway.
• Hands-on experience working with Terraform scripts and using Azure resource modules. Automated app Service scaling options using Terraform scripts for azure app services.
• Designed database schemas and Created various triggers, cursors, Oracle sequences, Oracle PL/SQL packages in the Oracle database.
• Designed and developed the ETL(Extraction Transformation and Loading) solution using the request module and the Oauth 2.0 protocol in node JS.
• Developed several reusable custom elements using the Angular elements available in Angular 6.
• Expertise in implementing Angular 5 concepts like Angular-animate, Angular-cookies, Angular-Filter, Angular-Mocks, Angular-sanitize.
• Expertise in developing apps using Angular 6 custom elements (Angular Elements), rxjs 6 new pipe() operator and Angular CLI 6 commands ng update, ng add.
• Extensively utilized the Observables to handle the asynchronous events in the application.
• Implemented ES6 promises and ES7 async await for various database and third party API calls.
• Followed TDD with the help of cucumber testing framework to test the APIs developed in nodejs using the Gherkin language, Mocha, Expect library.
• Utilized job scheduler Appworx to schedule the calls to third party API and oracle database function, stored procedure calls.
• Utilized the oracledb module in node js to connect, make database CRUD operations, execute oracle database package functions and stored procedures.
• Utilized the Nginx server feature reverse proxying to direct certain requests to the module running on a different APPService instance.
• Created Azure Cloud Front url, WAF server for app services and configured Azure Traffic Managers to multiple instances of app services.
• Created Azure Application Insights for track user activities and geographical count on users logged in to application. Utilized OpenTelemetry to customize user information and dashboard display in Application Insights. Created alerts for specific log messages in APPInsights.
• Configured Office 365 in azure to send email notifications for any alerts configured.

Environment: HTML5, CSS, Angular 6, NodeJS, ExpressJS, JWT, OAuth 2.0, JIRA, GITLAB, Jenkins, HTTP/HTTPS, Firebug, Jasmine, Mocha, Cucumber, postman, Splunk, swagger API, Agile Methodology, Oracle, PL/SQL, ETL, Nginx, Apigee Gateway, Microsoft Azure.

Confidential, Pittsburgh

Java Full Stack Developer

Responsibilities:

• Worked with HTML5, CSS3, JavaScript, XML, JSON, AJAX, and Bootstrap.
• Wrote Client-Side code using React JSand used NPM, directories to generate the server environments used browserify, flux to manage with targeted URL's (Unidirectional data flows) and to monitor the application.
• Proficient in writing react code with help of ECMAScript (ES6) and JSX. Implemented Virtual Dom for Client-Side view rendering services usingReact Js.
• Implemented unit test cases using Karma and Jasmine on client side.Used Kubernetes to orchestrate the deployment, scaling and management of Docker Containers.
• Used Kubernetes to orchestrate the deployment, scaling and management of Docker
• REACT JS Virtual DOM used for client-side view rendering services, React-Redux for state management and React-Router for programmatic navigation.
• Redux/NGRX and understanding of the Redux pattern
• Involved in the creation of UI specification documents by interacting with business users and design documentation and data modelling for the entire project.
• Expertise in usingReact.js/Reduxto build User Interface, strong knowledge ofstate store, middleware, action creator, reducer and container.
• Written several Axios service calls like get() and post() to make REST service calls.
• Implemented Pagination Components on UI using REACT Material designing. Used Rounded Pagination to display data in multiple pages.
• Created database triggers to perform automatic data insertions/deletions on Audit Tables.
• Used Load Balancer for accepting incoming traffic from clients and routes requests to its registered targets to EC2 instances.
• Developed user interface by using ReactJs, Redux for SPA development and implemented client-side Interface using ReactJs.
• Created responsive design and developed a single responsive website that could be served to desktop, Tablets and mobile users using React Js.
• Involved in the creation of UI specification documents by interacting with business users and design documentation and data modelling for the entire project.
• Worked with Microservice architecture using Spring Boot to modularized code and implemented Rest API’s using Spring Rest and integrated Swagger API for documentation.
• Implementation domain base classes providing basic properties using Spring Data.
• Created reusable templates using Angular directives and worked with NPM package manager tools (Node JS).
• Involved in writing Promises and call back function in Node Js to build microservices using Hapi.JS.
• Used Amazon Dynamo DB to handle many request at once,it supports ACID transactions which enabled us to build business-critical applications at scale.
• Developed reusable application logic by avoiding building infrastructure by Hapi.JS. implemented platform modules through spring Java micro and Node.js services by employing Hapi.js, as well as front-end React JS.
• Worked with Web pack for bundling application source code in convenient chunks and for loading that code from a server into a browser
• Used MemCache to use it as in memory data store to speed up dynamic database-driven websites by caching data.
• Used Splunk to create charts for the log data and analyze log data to know customer expectations.
• Implemented Spring Circuit breaker pattern, integratedHystrix dashboard to monitor Spring micro services
• Implemented Relational DataBase like Oracle and hands-on creating PL/SQL store procedures and functions for complex data flows and data base operations.
• Performed Code building using Gradle.
• Worked onDocker hub, creatingDocker images and handling multiple images primarily for middleware installations and domain configurations.
• Proficient with container systems like Docker and container orchestration like EC2 Container Service, Kubernetes, worked with Terraform.
• Managed Docker orchestration and Docker containerization using Kubernetes.
• Used Kubernetes to orchestrate the deployment, scaling and management of Docker Containers.
• Used Kubernetes to create new cluster and container management tool.
• Deployed and Monitored Micro Services Using Spring Cloud Foundry Managed Domains and Routes with the Spring Cloud Service Registry.

Environment: AWS,AWS Load Balancer,EC2,Amazon Dynamo DB, Swagger, Node-JS,React Js, Web pack, ECMA6, Karma and jasmine, Spring 4.x, Spring Boot, Hystrix, Netflix ZUUL, Micro services architecture, Docker, Cassandra DB, OAUTH, Apache Kafka, Splunk,Kubernetes.

Confidential, Deerfield, IL

Java Full Stack Developer

Responsibilities:

• Developed dynamic web pages using HTML5, CSS3, Bootstrap, Less, CSS3(SASS) and AJAX.
• Used backbone.js to create Controllers to handle events triggered byclients.Used backbone.js to bind event handlers using listenTo().
• Participated in front end development using JSF 2.0, JavaScript, HTML 5, CSS 3.0.
• Used backbone.js as Model, Widgets as Controller and jQuery template as View.
• Worked extensively with persistence context (JPA) implemented by IBatis.
• Gulp used for modification of JavaScript files and for monitoring the application.
• Used JQuery for view rendering of the web pages.
• Designed, configured and deployed Amazon Web Services (AWS) for a multitude of applications utilizing the AWS stack (Including EC2, S3).
• Implemented second level cache using Oracle Coherence for IBatis.
• Integrated App Dynamics APM with AWS services and monitored the EC2 instances health on APP Dynamics.
• Developed RESTful Services and Web Service Clients (JAX-RS or JAX-WS) using jersey framework with data representation in different formats such as XML and JSON.
• Extensively used CSS and Bootstrap for styling the HTML elements.
• Developed a set of the application functionality using CRUD (Create, read, update, delete) features of backbone.js.
• Involved in migrating code from SOAP to RESTful services.
• Developed SOAP services with JAX-WS using Apache CXF framework with data representation in XML format.
• Worked with creating WSDL Documentation to act as a agreement between producer and consumer of the Web service.
• Created automation framework and test scripts using SeleniumWeb-Driver for multiple platforms and browsers testing.
• Written Mokitotest scripts to automate the unit testing process
• Project code build is done using MAVEN tool.
• Worked with Jenkins for Continuous Integration and Continuous Deployment (CI/CD).
• Worked on Docker. Creating docker images and configurations using Dockerfile, worked with docker cli to build, pull and push images to Docker registry. Created a Docker hub which allows us to link our code repositories.
• Written IBatis Criteria queries for data retrievals and have performed the ORM mappings to map java entities to database tables.

Environment: JAVA, J2EE, Core Java, JSF, AJAX, JavaScript, Apache CXF, Rest Service, Jax-RS, WSDL, JQuery, Karma and jasmine, Multi Threading, AWS, Jquery, HTML5, CSS3, Ajax, ORACLE, IBatis, Docker, Mockito.

Confidential

Java Developer

Responsibilities:

• Developed client-side validation code using Javascript and JQuery.
• Developed UI pages using HTML5, CSS3, JavaScript, jQuery, AJAX and JSON.
• Implemented OGNL (Object Graph Navigation Language) of STRUTS 2.x to simplify the accessibility of data stored in the ActionContext.
• Implemented POJO based action by STRUTS and also utilized various Tag Support given by the STRUTS 2.x. Implemented interceptor which is invoke at preprocessing and post processing of a request in STRUTS 2.x.
• Worked with Log4J to capture the log that includes runtime exceptions.
• Involved in various phases of Software Development Life Cycle (SDLC) on the application like Requirement gathering, Design, Analysis and Code Development.
• Developed and implemented the MVC Architectural pattern using STRUTS 2.x framework.
• Loading data from Text Files to Database by using SQL Loader.
• Created Actions and action mappings for Struts and consumed data from backend to display on the UI template pages.
• Implemented IBM WebSphere Application Server to deploy the application.

Environment: HTML5, CSS3, JavaScript, JQuery, MVC Architectural, STRUTS 2.x, SQL Loader, IBM WebSphere, Log4J.

Confidential

Java Developer

Responsibilities:

• Developed UI pages using HTML5, CSS3, JavaScript, jQuery, AJAX and JSON
• Developed backend logic using Core Java including Collections, Multithreading andException Handling.
• Implemented Multithreading feature for processing the multiple requests to achieve high performance
• Deployed Application using Oracle Weblogic Server.
• Developed and implemented the MVC Architectural pattern using STRUTS 2.0 framework including JSP, Servlets, and EJB.
• Developed/Customized Java Server Pages (JSP) for Customer UserInterface (UI).
• Involved in development activities using Core Java/J2EE, Servlets, JSP used for creating web application
• Developed the business logic code in Core Java/J2EE, Struts, JDBC.
• Developed application using OOPS concepts and design patterns such as Singleton, Abstract Factory and Session Facade.
• Worked extensively on JSP tags, JSP Directives and JSP Implicit Objects.
• Worked on sharing objects or variables between servlets using RequestDispatcher().
• Implemented JDBC for database connectivity with MySQL Server.

Environment: JAVA, J2EE, JSP, JSTL, Swing, JSP, HTML, CSS, servlets, EJB, Web Logic, MYSQL, STRUCTS 2.0, XML, JavaScript, java core like multithreading, collections, Interface and abstract classes, strings.