Front-end• HTML, CSS, JavaScript• Libraries and frameworks like React• Understanding of working with APIs and interacting with thebackendBack-end• Programming languages such as Node.js• Database management systems like MySQL, MongoDB• Backend frameworks like Express (Node.js)Databases and Data Storage• Knowledge of SQL for relational databases• Familiarity with NoSQL technologies like MongoDB for nonrelational databasesServer-side Operations and Deployment• Experience with server management, hosting configuration• Use of deployment automation toolsCommon Web Development Concepts• Data transmission protocols, HTTP/HTTPS• General principles of web application security• Client-server architecture (WEB)• RESTful API (HTTP methods: GET, POST, UPDATE, DELETE)• JSON/XML, Google Sheets API (Google Cloud)• Browserstack, DevTools, PostmanProgramming Languages• Back-end: Node.js• Front-end: JavaScript (React), TypeScript• Java for Android• Java, WindowsAPP (Appium, WindowsDriver, testNG)• JavaFXTesting• QA Automation and Manual Testing for WEB applications• Automation Frameworks: Selenium, WebDriverIO, Mocha,Chai, Jest, Appium• Test Management Tools: Jira, TestRail• Writing clear documentation: Checklists, Bug Reports, TestCasesTools & Platforms• Version Control: GitHub, Bitbucket• CI/CD: Jenkins• Mobile Platforms: Android, Google Play