Over 10+ yearsof extensive experience in software development life cycle (SDLC) in developing and designing user experiences of Internet/Intranet applications using HTML5, HTML, XHTML XML CSS, CSS3, AngularJS, React, Vue, JavaScript, jQuery and Develop mobile applications using Objective C, Swift, React Native, Flutter, Ionic. Proven track record in ability to work both backend and frontend from hand-coded HTM with W3C- established web standards with respect to maintaining cross-browser/cross-platform compatibility and delivering final page templates, including optimized images to develop Complex APIs are either RESTful or GraphQLed required by the websites and mobile apps using Node, ExpressJS, GraphQL and consumed them using Fetch, Axios, Apollo clients. Good knowledge of latest version of object oriented JavaScript Libraries like Angular.js, Node.js, ReactJS, Bootstrap, React Native, GraphQL, Relay, Apollo, PrismaGraphQL. Ability to lead small teams and worked with Agile waterfall and scrum methodologies and experience with User Acceptance Testing (UAT) and Accessibility Testing.