react.js , Json Web Token, Redux, Paypal, Flux, Npm, Restful Apis, Javascript, Stripe, Ecmascript, Webpack, Authorised.net, data structure libraries, Babel, front-end build pipelines, Square, Payment Systems, payment gateway integrations, isomorphic React

react.js , Redux, JSX, Webrtc, Auth2.0, Reducer Skills, Zoom calling, live streaming app video calling, Twilio video calling integration, Stripe Js, SDK Websdk integration, Axios, Virtual DOM vs Real DOM, Diff b w ES5 and ES6, How React is diff from Angular, components in React

react.js , Express.Js, AWS, Node.js, Azure, Graphql, Redux, MongoDB, Restful Apis, security best practices, Context API, Hooks, DevOps practices, microservices architecture, Git workflows