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.
• 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 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.
• 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 working with JAVA8 features like Functional Interfaces, Lambda functions, Stream API, Time API, Transaction Management, Exception Handling, Collection API.
• 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.
• 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 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.
• Strong experience in working with Relational databases like Oracle, MySQL, Microsoft SQL Server, PostgreSQL, IBM DB2 etc., and NoSQL databases like MongoDB, CouchDB, Gem Fire, Redis, HBase etc.
• Experience in developing various Web applications using Monolithic architecture using the technologies like Servlets, JSP, Structs, JSF, Spring I/O, Spring REST, Spring Security.
• 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 JAVA based testing frameworks like JUnit, Selenium, TestNG, Mockito, Spock, Cucumber, Power mock, MockMvc, 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 SOAP using JAX-WS API ad Apache CXF framework and automated the documentation using Swagger and WSDL.
• 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.
• Experience in working with various version controlling tools like Git, SVN, Bitbuckets, TFS, CVS and different Project management tools like JIRA, Rally, Microsoft Project.
• Good knowledge of implementing MVC architecture on client side using AngularJS, React with redux, React with flux, Backbone JS, Ext JS, knockout JS.
• Expertise in implementing MVVM architecture on client side using Angular 2.x and above versions with typescript 2.7.
• Expertise in working with Hapi.JS to build reusable application logic by avoiding spending time on building infrastructure.
• Expertise in Developing applications using node JS Socket.io programming for persistence connection from client to the server.
• Hands-on experience working with NodeJS platform and using NPM for library management and BOWER for dependency management.
• Expertise in implementing Spring JTA for transaction management and Spring JDBC to interact with Databases
• 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.
• Deployed the Zero Down Deployment using Kubernetes orchestration service application. Automated the deployment process by integrating code repository using build pipeline Jenkins, Bamboo and GoCD for continuous deployment.
• 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 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.
• 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)
• Experience in using automation build tools like Bamboo, Jenkins, GoCD at server level and Maven, ANT, Gradle at development level (local).
• Good experience with automated Java based logging frameworks like log4J, SlF4j, log-common.
• 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 Docker Container to address every application across the hybrid cloud and Docker for better collaboration and innovation.
• 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.
• Experience in configuring and deploying applications on different application servers like Apache Tomcat, WebLogic, IBM WebSphere, JBoss and web servers like Apache HTTP Server, Nginx, Caddy etc.
• 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.
• 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)

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: Apache Tomcat, 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, Colorado

Java Full Stack Developer

Responsibilities:

• 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.
• 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.
• 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.json provided in Angular 6.
• Designed database schemas and created various triggers, cursors, Oracle sequences, Oracle PL/SQL packages in the Oracle database.
• 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.
• Implemented Angular Authentication using the HTTP interceptors and HTTP Client.
• Designed and developed the ETL (Extraction Transformation and Loading) solution using the request module and the Oauth 2.0 protocol in node JS.
• Extensively utilized the methods available in async library like async.parallel(), async.waterfall(), async.whilst(), async.eachof() etc to make the Oracle database transactions.
• 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.
• Managed the Angular state using rxjs powered state management solution NGRX.
• Extensively utilized the Observables to handle the asynchronous events in the application.
• Implemented the automatic documentation for the API using the Swagger an Open API specification.
• Followed TDD with the help of cucumber testing framework to test the APIs developed in NodeJS using the Gherkin language, Mocha, Expect library.
• Used Continuous delivery / Continuous Integration (CD/CI) tool Jenkins to build the project upon passing the test cases written using cucumber.
• 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
• Utilized the oracle DB module in NodeJS to connect, make database CRUD operations, execute oracle database package functions and stored procedures.
• Unit testing is done using the jasmine for the code written using the Angular framework.
• Created the server in node js using the Express middleware.
• Implemented ES6 promises and ES7 async await for various database and third party API calls.
• Utilized node-jsonwebtoken module to digitally sign and verify the tokens for API authentication mechanism.
• Utilized job scheduler Appworx to schedule the calls to third party API and oracle database function, stored procedure calls.
• Utilized the Nginx server feature reverse proxying to direct certain requests to the module running on a different APPService instance.
• Created Azure Application Insights for track user activities and geographical count on users logged in to application.
• Utilized Open Telemetry to customize user information and dashboard display in Application Insights. Created alerts for specific log messages in APP Insights.
• Configured Office 365 in azure to send email notifications for any alerts configured.
• 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.
• Created Azure Cloud Front url, WAF server for app services and configured Azure Traffic Managers to multiple instances of app services.
• Used Splunk for automated logging of error messages.

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, Atlanta

Java Full Stack Developer

Responsibilities:

• Worked with HTML5, CSS3, JavaScript, XML, JSON, AJAX, and Bootstrap.
• Redux/NGRX and understanding of the Redux pattern.
• Implemented platform modules through spring Java micro and Node.js services by employing Hapi.js, as well as front-end React JS.
• REACT JS Virtual DOM used for client-side view rendering services, React-Redux for state management and React-Router for programmatic navigation.
• Deployed and Monitored Micro Services Using Spring Cloud Foundry Managed Domains and Routes with the Spring Cloud Service Registry.
• Expertise in using React.js/Redux to build User Interface, strong knowledge of state store, middleware, action creator, reducer and container.
• Written several Axios service calls like get() and post() to make REST service calls.
• Developed user interface by using ReactJS, Redux for SPA development and implemented client-side Interface using ReactJS.
• Proficient in writing react code with help of ECMAScript (ES6) and JSX. Implemented Virtual Dom for Client-Side view rendering services using React JS.
• Proficient with container systems like Docker and container orchestration like EC2 Container Service, Kubernetes, worked with Terraform.
• Created responsive design and developed a single responsive website that could be served to desktop, Tablets and mobile users using React Js.
• Implemented Pagination Components on UI using REACT Material designing. Used Rounded Pagination to display data in multiple pages.
• 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.
• Implemented unit test cases using Karma and Jasmine on client side.
• Developed reusable application logic by avoiding building infrastructure by Hapi.JS.
• Used Splunk to create charts for the log data and analyze log data to know customer expectations.
• Wrote Client-Side code using React JS and 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.
• Implemented Relational Database like Oracle and hands-on creating PL/SQL store procedures and functions for complex data flows and data base operations.
• 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.
• Used Kubernetes to orchestrate the deployment, scaling and management of Docker Containers.
• Used Amazon Dynamo DB to handle many request at once,it supports ACID transactions which enabled us to build business-critical applications at scale.
• Implemented Spring Circuit breaker pattern, integrated Hystrix dashboard to monitor Spring micro services
• Performed Code building using Gradle.
• Worked with Web pack for bundling application source code in convenient chunks and for loading that code from a server into a browser
• Used Kubernetes to create new cluster and container management tool.
• Worked on Docker hub, creating Docker images and handling multiple images primarily for middleware installations and domain configurations.
• Managed Docker orchestration and Docker containerization using Kubernetes.
• Involved in the creation of UI specification documents by interacting with business users and design documentation and data modelling for the entire project.
• Used MemCache in memory data store to speed up dynamic database-driven websites by caching data.

Environment: AWS, AWS Load Balancer, EC2, Amazon Dynamo DB, Swagger, Node-JS, ReactJS, 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, Tampa, FL

Java Full Stack Developer

Responsibilities:

• Developed a set of the application functionality using CRUD (Create, read, update, delete) features of backbone.js.
• Used backbone.js to create Controllers to handle events triggered by clients. Used backbone.js to bind event handlers using listenTo().
• Used backbone.js as Model, Widgets as Controller and jQuery template as View.
• 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.
• Participated in front end development using JSF 2.0, JavaScript, HTML 5, CSS 3.0.
• Extensively used CSS and Bootstrap for styling the HTML elements.
• Developed dynamic web pages using HTML5, CSS3, Bootstrap, Less, CSS3(SASS) and AJAX.
• Used JQuery for view rendering of the web pages.
• Implemented second level cache using Oracle Coherence for IBatis.
• Worked extensively with persistence context (JPA) implemented by IBatis.
• Designed, configured and deployed Amazon Web Services (AWS) for a multitude of applications utilizing the AWS stack (Including EC2, S3).
• Integrated App Dynamics APM with AWS services and monitored the EC2 instances health on APP Dynamics.
• Gulp used for modification of JavaScript files and for monitoring the application.
• 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.
• Involved in migrating code from SOAP to RESTful services.
• Written IBatis Criteria queries for data retrievals and have performed the ORM mappings to map java entities to database tables.
• Written Mockito test scripts to automate the unit testing process
• Worked with Jenkins for Continuous Integration and Continuous Deployment (CI/CD).
• Worked on Docker. Creating docker images and configurations using Docker file, 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.
• Created automation framework and test scripts using Selenium Web-Driver for multiple platforms and browsers testing.
• Project code build is done using MAVEN tool.

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

Confidential

Java Full Stack Developer

Responsibilities:

• Involved in various phases of Software Development Life Cycle (SDLC) on the application like Requirement gathering, Design, Analysis and Code Development.
• 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.
• Implemented OGNL (Object Graph Navigation Language) of STRUTS 2.x to simplify the accessibility of data stored in the ActionContext.
• Developed and implemented the MVC Architectural pattern using STRUTS 2.x framework
• 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.
• Developed UI pages using HTML5, CSS3, JavaScript, jQuery, AJAX and JSON.
• Developed client-side validation code using JavaScript and JQuery.
• Worked with Log4J to capture the log that includes runtime exceptions.
• Loading data from Text Files to Database by using SQL Loader.

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

Confidential

Java Full Stack Developer

Responsibilities:

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

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.