Frontend Developer Skills Core Languages: Mastery of HTML5, CSS3, and JavaScript (ES6+). Frameworks/Libraries: Proficiency in React, Angular, Vue.js, or Svelte. Styling/CSS Preprocessors: Sass, LESS, Bootstrap, Tailwind CSS. Build Tools: Vite, Webpack, Babel. Version Control: Git & GitHub. Web Performance & Optimization: Ensuring fast loading times and responsiveness. API Consumption: Interacting with RESTful APIs or GraphQL. UI/UX Knowledge: Understanding design principles, accessibility (WCAG), and tools like Figma. Essential Backend Developer Skills Server-Side Languages: Proficiency in Node.js, Python, Java, Ruby, PHP, or Go. Database Management: Knowledge of SQL (PostgreSQL, MySQL) or NoSQL (MongoDB) databases. Frameworks: Express (Node.js), Django/Flask (Python), Spring (Java), Rails (Ruby). API Development: Creating and consuming RESTful APIs, SOAP, or GraphQL. Security Principles: Implementing authentication (OAuth, JWT), handling data security, and mitigating vulnerabilities. DevOps/Server Basics: Familiarity with Docker, Kubernetes, AWS/Azure/GCP, and CI/CD pipelines. Data Structures & Algorithms (DSA): Essential for building optimized, scalable systems