Home

Ramkumar - UI Developer/React JS Developer

[email protected]

Location: Frisco, Texas, USA

Relocation: YES

Visa: H1B

Ramkumar T (469) 305-0739 Email Id:- [email protected] UI Developer/React JS Developer Summary: Over Extensive 10+ years of experience as a Front end web developer in developing and designing user experiences of Internet/Intranet applications using HTML, HTML5, XML, DHTML CSS, CSS3, SASS, LESS, JavaScript, React Js, Redux, ES6, Saga, thunk Web pack, Flex, J Query, JSON, Node.js, Ajax, JQUERY Bootstrap. 7+ Years of experience in UI Developer/React JS Developer Experience in all phase of SDLC like Requirement Analysis, Implementation and Maintenance, and extensive experience with Agile and SCRUM. Expertise in implementing easy to use Bootstrap plugins for building carousel, accordion, modal windows etc. Extensive knowledge in developing single - page applications (SPAs). Expertise in analyzing the Document Object Model (DOM) Layout, DOM Functions, and Java Script functions, Cascading Styles across cross-browser using Fire Bug, Developer Tool Bar. Expertise in React Js and working with React Flux architecture. Experience with middleware's using Redux-Thunk, Redux-Saga, Redux-Logger, Universal React Expertise in React Js framework to develop the SPA. Experience in React Js Libraries like redux thunk, redux saga. Experience with modern build tool chains, like JavaScript frameworks/technologies such as Express.js,React.js, MobX or Flux.js. Experience in working with React JS, React Flux, and Redux architecture using complex object-oriented concepts in improving the performance of websites. Expertise in creating Custom Reusable React Components Library Experienced in working with Redux architecture using complex Object Oriented concepts in improving the performance of the websites Experience in using React Js components, Forms, Events, Keys, Router, plus Redux, Animations and Flux concept. Good Experience in React Js for creating interactive UI's using One-way data flow, Virtual DOM, JSX, React Native concepts. Expertise in using Middleware, Redux-Promise in application to retrieve data from Back-End and to also perform RESTFUL services. Experienced in working with Node.js and NPM modules like http-server, Marathon, inquirer, path, mongo DB, Micro Services, Request, Elastic Search, express, luck, spark and templating engines. Experience in Node environment using Node.js, NPM, Grunt, Gulp, and Groovy Bower. Knowledge of utilizing cloud technologies including Amazon Web Services (AWS), Expertise in RESTful, SOAP web services to integrate between Application to Application Experience with front-end development with back-end system integration. Proficient in using Unit.js testing framework along with Jasmine, Karma, Protractor, Mocha test runners Expertise in using bug tracking tools like JIRA. Experience in Version Control tools like GIT, SVN for Source Code version management. Experience in Jenkins.Extensive working experience with Axios, mobx, Lodash, and Nextjs. Good knowledge in working with databases like Oracle, MS SQL Server, Azure, MySQL, PL/SQL(Oracle), PostgreSQL, NoSQL, Mongo DB, Cassandra along with web application servers like Apache Tomcat, Web logic etc. Proficient with various IDE's like Eclipse, Android Studio, Notepad++ and Dreamweaver Experience working with CVS and SVN for software configuration Experienced with Linux system administration, DevOps and AWS cloud platform. Experience with windows Azure to deploy the application on the cloud and manage the session. Experienced with UI manual/automated testing tools using Jasmine, Karma, Mocha and Protractor and code optimization SQL queries on databases like Oracle, SQL Server, and PostgreSQL also worked on NoSQL Database like MongoDB. Experience in Unit Testing frameworks like Mocha, Chai, and Jasmine Integration Testing and in preparing test cases. Education: Bachelors of Engineering / Computer Science -2013 Technical Skills: Web Technologies HTML, HTML5, CSS3,SASS, XHTML, XML, JavaScript, AJAX, JQuery, WordPress, JSON, Twitter Bootstrap, React JS, Reduct JS , Flex, Express JS, Node.js, ES6, Saga, thunk Web pack IDE s Eclipse, Visual Studio Code, Notepad++, WebStorm, Sublime. Debugging tools Firebug, Chrome Developer Tools. Operating systems Linux - Ubuntu, Mac OS, Windows. Servers Apache Tomcat, JBOSS, WebSphere, WebLogic. Version Control GIT, SVN. Build Tools Jenkins Database SQL Server, MYSQL, Mongo DB. Oracle 12c Frond End Tools CorelDraw, Dreamweaver, Adobe Photoshop CS5, Illustrator Testing Tools Selenium, HP Quality Center, JIRA, Karma, Mocha Programming Languages C, C++, JAVA, J2EE Cloud AWS, Azure, Splunk, Professional Experience: Client: - Microsoft, Redmond, Washington May 2022 to Till Date Role: - UI Developer/ React JS Developer Responsibilities: Designed the Front-end applications, And Mobile Application As well for user interactive (UI) web pages using web technologies like HTML5, CSS3, Es6 JavaScript, React JS and React-Native/Redux Saga. Worked as a Front End Developer on the project with JavaScript, ES6, React, Redux Saga, RESTful services, HTML5/CSS3/SASS/Bootstrap and Gitlab. Implemented Redux Saga's with actions and reducers to implement a sync API calls. Made use of redux saga middleware to access redux application state and dispatched redux actions. Worked in designing, developing and testing the web application by using the HTML5, CSS3, SASS, LESS, Bootstrap, and React.JS. Involved in designing in web pages using HTML 5, XHTML, CSS3, JavaScript, React.js, Redux, React-Bootstrap, Node.js, express.js, Mongo DB. Worked in designing the CSS templates for use in all pages on the website working with CSS Background, positioning, text, border, margin, padding, and table. Worked in frameworks as React.js to build high-quality, scalable and reusable components and Front-end solution. Developed user interface by using the React HOC, Flux/Redux for SPA development. Used React Observables to create custom components for data manipulations and to display data in company standard format. Designed layouts on the front-end and developed web pages responsive for smart phones, tablets and Personal desktops using HTML5, CSS3, Bootstrap, jQuery, React HOC, Redux & React Promises Implemented React-Router, React Redux architecture, ES6, web pack and Grunt to turn application into Single Page Application. Built dynamically generated dropdown lists using ES6 & Chrome DevTools. Enhanced the React Observables with Redux, React-router and Redux-thunk. Used Redux-Thunk as middleware to manipulate the data type and handle multiple actions. Revamping and rewriting front-end using react js, redux, saga, webpack. Developed user interface by using the React JS, Flux for SPA development. Developed presentation layer using XML, XSL, GitLab JavaScript, CSS, JSP, JSTL, Custom tags etc. Delivered mobile app for book reading capability with HTML5 Sencha and online services with Flash/Flex. Implemented back-end Web API with the use of MongoDB, ExpressJS, and NodeJS and established connectivity with the use of Axios. Achieved APIs calls from back end NodeJS using React axios. Working with Axios Library to fetch data from network request Elegantly used React-Router techniques Axios service to retrieve data from server synchronously in the background without interfering with the display and existing page in an interactive way. Used Babel.js to transpile ES6 and JSX into JavaScript Designed a web application for both the company user and customer user with different Login and Sign-up authorization using firebase authentication. Mobile app written in React Native with a firebase backend currently live in the app store. Used Web pack, Babel and gulp for transpiration (compilation) configuration for Typescript to be converted to JavaScript. Implemented unit and integration testing for all layers of the applications using frameworks like JUnit, Spock, Mocha, Jasmine. Debugging applications in different browsers using Firebug, and testing applications using QUnit, Jasmine karma and Mocha. Performed Unit testing on applications using tools like chai, mocha, and enzyme within Test-Driven Development (TDD). Bugzilla was used to report and track bugs, JSLint for ensuring quality code. Environment: React.JS, Redux, Axios, ES6, React HOC, React Observables, React Async Await, React Promises, Saga, Thunk, JWT, Typescript, Java script, HTML5, CSS, Ajax, Bootstrap.JS, SCSS, CORS, WCAG, XSS, SASS, LESS, Java, MYSql, Mongo db, Rest, Node.JS, Express.JS, Micro services, Visual Studio Client:- Home Depot, Atlanta, GA Jun 2020 to April 2022 Role:- UI Developer/React JS Developer Responsibilities: Involving all the stages of Software Development Life Cycle like Application Design, Development, Debugging and testing the applications. Designed the front-end applications, user interactive (UI) web pages using web technologies like HTML, XHTML, and CSS. Web designing & development using HTML5, CSS3, JavaScript, React JS and Ajax. Developed React JS pages, Web services calls and AJAX calls for the application Used React JS in development of the web application to bind the data/model that is being retrieved from a database through services provided in a controller to the view using scope. Used React JS in components like JSX, creating React components, Virtual Participated with end users and business analyst to understand the business requirements. CSS styles were developed in order to preserve the uniformity of all the screens throughout the application and positioning of screen objects. Worked on Front end by using JavaScript. Developed user interface by using the React JS, Flux for SPA development. Implemented client side Interface using React JS. Worked in using React JS components, Forms, Events, Keys, Router, Animations and Flux concept. Build React components and stand-alone functions to be added to any future pages. Experienced in React JS and working with React architecture. Working with React Router for developing Single Page Applications SPAs. Worked on responsive design and developed a single ISOMORPHIC responsive website that could be served to desktop, Tablets and mobile users using React.js. Implemented the Drag and Drop functionality using React-Dragable Extensively used Redux Sagas to manage side effects in React and Redux. Used Redux Thunk Middleware, in application to retrieve data from Back-End and to also perform RESTFUL services. Introduced redux-thunk and Immutable.js as additional libraries to support ReactJs application. Worked with Axios and Lodash libraries for Ajax calls and utility functions respectively. Involved in processing JSON data from RESTful web service by using Axios to get resources from the database and populated data on the UI and used Redux-Saga as middleware. Used Axios to fetch the data by consuming the Rest API. Implemented a POC to pick a state management tool between Redux and MobX. Used ReactJs and MobX for front end development. Used NextJs for server-side rendering for better performance and for SEO. Developed certain features of the application functionality i.e. CRUD (Create, read, update, delete) features using Express JS, Node JS and Firebase. Used React Router Redux to store the route parameters in the redux store. Solved Callback hells in Node.JS by using Promises and Generators from ES6 resulting in unchaining of events and making the code efficient. Implemented JavaScript source code and embedded nested handling logic using jQuery event handlers and call back functions, es6. Developed a bulletin board module for supplier and vendor information portal. Application included forms to upload notification documents to the Supplier bulletin and maintenance of documents, complete with CRUD capabilities and email notifications. Extensively used Reactjs, D3.Js, under score.js, Node JS and lodash.js for JavaScript object and array manipulations. Used Saga Middleware, Redux-Promise in application to retrieve data from Back-End. Worked on Redux for state manipulations and Redux Saga to implement API requests asynchronously. Used Middleware, Redux-Saga in application to retrieve data from Back-End and to also perform RESTFUL services. Designed and implemented server-side RESTful web services using Node JS and handled communications to the client side (React JS) using JSON. Utilized Bootstrap and to develop a reactive website from a static JavaScript, Node JS, Bootstrap, Semantic UI,RESTful API, jQuery existing code base. Developed semantic markups and Wireframe development. Developed portions of HTML5-based game for use in an online gambling promotion. To manipulate the data type and handle multiple actions, uses Redux-Thunk as middleware. The Redux-Thunk middleware was used with the Redux store to retrieve contract data via a REST ful API implemented on the backend in Node.js and Mongo DB. All development was done on Mac OS and the source code was managed via GIT. Used Ecma Script, React JS, Flux, Babel, Node and Web-Pack to create a SPA. Used Babel, Sonar Qube and react JSX presets. Used Node.js to run Web pack tasks and build properly the project. Developed forms using HTML and performing client side validations using Chrome Dev Tools. Configure MONGODB Sharded cluster with Replica Set (HA) on Different AWS regions. Developed test cases and performed unit testing using JUnit. Have broken down the application into multiple angular modules for simplicity purposes and have done unit tests using Jasmine. Environment: React.JS, Redux, ES6, Redux, Typescript, Javascript, HTML5, CSS3, Ajax, Bootstrsap.JS, Angular.JS, WCAG, XSS, CORS, SASS, LESS, Java, Oracle, MYSql, REST, Node.JS, Chrome DevTools, Visual Studio, Sublime Text, Grunt, Gulp, Nginx, Github, Chai Selenium, Jasmine, Scrum, Agile, AWS, Jenkins, Docker, Kubernetes, JSON, XML, Jira, Linux, Hipchat, JSLint, Ionic, Cordova, iOS, Android Client:- Freddie Mac. Tysons Corner, Virginia Feb 2017- May 2020 Role:- UI Developer/React JS Developer Responsibilities: Developed SPA using React JS to utilize the HTML5 DOM features and update elements that are modified in the webpage. Developed Web Pages by using HTML5, CSS, jQuery, JavaScript and using JavaScript frameworks. Built the Responsive UI screens using HTML 5, CSS 3 and twitter Bootstrap. Responsible for converting designed mock-ups to HTML pages using HTML5, CSS and jQuery. Designed Frontend with in object- oriented JavaScript libraries like React.js. Used React JS for building compostable and reactive user interfaces. Implemented various screens for the front end using React.js and Redux library. Used React-Router to turn application into Single Page Application. Experience in React JS and working with React Flux architecture. Involved in using React JS components, Forms, Events, Keys, Router, Animations and Flux concept. Involved in building stable React components and stand-alone functions to be added to any future pages. Used Redux for the higher order decoration for wrapping each component with UI state and actions. Massive re-design of client site from HTML form handling to cleaner Redux-Form. Configured routes between React JS and Flask to render the templates from the server-side. Used J Query in directly manipulating the DOM yet separating the React JS Components. Used React JS with Redux to separate the data and presentation layer. Utilized Redux stores to handle the states and update the UI. Used ES6 for the less boilerplate code to handle parameter. Used various plugins on babel to compile JSX to create elements. Used XSRF and CSRF for Authentication. Developed POC s for the Authentication model using various security features in it. Used JWT format to secure the tokens. And after the authentication is done everything will be maintained by the server not on the web application. In this way we secured the token no one steal the token to hack the server Added react-router with secure navigation and unsecure navigation. Created a state management in react application using redux for the data flow within the application. Configured redux store, reducers and actions. Used sagas for handling middleware and fetch api for rest calls. Involved in developing presentational and container components using React and JSX. Used react-data grid to populate the dynamic data within the table. Used react-bootstrap and SASS for handling responsiveness in the application and parse correct styles on prop changes. Solid understanding of React Virtual Dom Algorithm, for React performance optimization. Implemented dynamic page elements and form error validations. Developed mock Api s to test the framework independency. The way we implemented React framework it will render data from the endpoint no matter what the data is. Column names will also load from the End points. Configured web pack to trans-pile JSX to ES5 using Babel, Added CSS-loader and sass plug-in for pre-compiling SASS to CSS. Used HTML5plugin to create the index.html file with generated hashed JS and CSS files. Added proxy for web pack-server. Configured node application, created rest api s. Used Bit-Bucket for version controls. Resolved Cross Browser Compatible Issues for different version of IE, Safari, Chrome, Firefox and Opera. Worked closely with product, UX and business team to build applications & reach business goals through front end development and UX. Used Jira board for the track of work we have done. Updated the Confluence page after the each task and raised the issues to check the updated application and responded on the confluence page Environment: React, Redux, Babel, react-bootstrap, JSX, promises, node Js, CSS3, Jenkins, JSON, JavaScript, Web pack, Bit Bucket. Client:-ABB India Limited ,Bangalore, India July 2015- Dec 2016 Role:- UI Developer Responsibilities: Translate designs provides by UI creative design team into functional user interfaces, ensuring cross browser compatibility and performance. Designed and developed user friendly interface by using JavaScript, HTML, CSS, jQuery Designed flash plugins for including different functionalities and content. Worked on integrating jQuery APIs with MVC pattern. Used AJAX frameworks like jQuery, JSON to develop rich GUIs and involved in performance tuning the website. Involved in bug fixing on functionality, performance and designing issues with JavaScript and jQuery. Involved in debugging HTML, CSS and JS code using tools such as Chrome Inspector, and Firefox Firebug. Handled browser compatibility issues in browser such as IE, Firefox, and Chrome. Used Grunt with Grunt file to minify the JS file in whole application. Developing XML classes for loading the data from XML files deployed at the server. Provided information by collecting, analyzing, and summarizing development and service issues. Worked with Jasmine in testing and performed Unit testing and execution testing utilizing J UNIT . Developed UI pages using media queries and made completely responsive. Developed software solutions by studying information needs; conferring with users; studied systems flow, data usage, and work processes; investigated problem areas; following the software development lifecycle. Worked with the team of architects and back-end developers to gather requirements and enhance the application functionality and add new features. Prepared Unit and System Testing Specification documents and performed Unit and System testing of the application. Environment: JavaScript, HTML, CSS, AJAX, jQuery, Jasmine, Grunt, Unit testing, GIT, JUnit. Client:- BFSI Insurance, Bangalore, India Dec 2013 Jun 2015 Role:- UI Developer Responsibilities: Working in Photoshop design comps developing HTML/JavaScript/CSS based web sites, including testing and debugging cross-browser. Enhanced user experience by designing new web features using MVC Framework like Backbone.js and Node.js. To communicate with the backend worked wits Http module. Used advanced level of jQuery, AJAX, JavaScript, CSS and pure CSS layouts. Developed Graphics using Paint Shop Pro/Photoshop & Animation using Flash/Fireworks. Developed fast loading images using Adobe Photoshop CS3 Involved in designing and developing the JSON, XML Objects with SQL. Responsible for developing, editing, publishing and managing content on the external Web pages and internal layouts. Designed CSS3 based web pages, which were cross-browser compatible. Engaged in development of web pages using ASP.NET MVC, XML, VB.Net, CSS and UI enhancement coding. Developed, Configured and consumed Web Services in C#. Designed and coded Win Forms using C#, .NET. Extensively involved in User Interface designing using Web forms and also Win forms. Used JavaScript and .NET Validation Controls for performing client-side validations. Designed and Architected the Application using MVC and designed the application using responsive web design to work on different devices. Using web scripting languages like NodeJS and Yarn for interaction between client side and server-side technologies. Followed Agile and Scrum software development methodology. Environment: Javascript, HTML, CSS, Ajax, Bootstrap.JS, Jquery, Java, Spring, Hibernate, Struts, PL\SQL, Oracle, DB2, Soap, Visual Studio, Eclipse, WAS, CVS, SVN, Selenium, Waterfall, AWS, JSP, Servlet, JSON, XML, Jira, Linux, Hipchat Keywords: cprogramm cplusplus csharp user interface user experience javascript database information technology hewlett packard microsoft procedural language Georgia Idaho