A Full Stack Developer is responsible for both front-end (client-side) and back-end (server-side) development of web applications. They possess a diverse skill set to handle all aspects of a web development project. Here’s a breakdown of what a Full Stack Developer includes:

Front-End (Client-Side) Development:

1. HTML/CSS: Creating the structure (HTML) and styling (CSS) of web pages to achieve the desired user interface and layout.
2. JavaScript: Implementing client-side functionality and interactivity. Knowledge of JavaScript libraries and frameworks like React, Angular, or Vue.js is often required.
3. Responsive Design: Ensuring that web applications are optimized for various devices and screen sizes, including mobile, tablet, and desktop.
4. Cross-Browser Compatibility: Making sure the web application functions correctly and looks consistent across different web browsers.
5. User Experience (UX) Design: Focusing on user-centered design principles to enhance the overall user experience.
6. Front-End Frameworks: Using front-end frameworks and libraries for building web interfaces and managing application state (e.g., React, Angular, Vue.js).

Back-End (Server-Side) Development:

1. Server-Side Programming: Developing the server-side logic and components of web applications using languages like Node.js, Python, Ruby, Java, or PHP.
2. API Development: Creating APIs (Application Programming Interfaces) to enable communication between the front-end and back-end, often using RESTful or GraphQL standards.
3. Database Management: Designing, creating, and managing databases using SQL (e.g., PostgreSQL, MySQL) or NoSQL (e.g., MongoDB, Redis) solutions.
4. Authentication and Authorization: Implementing user authentication and authorization systems to secure access to protected resources.
5. Server Deployment: Deploying web applications to hosting platforms, cloud services (e.g., AWS, Azure, Heroku), or on-premises servers.
6. Server-Side Frameworks: Using back-end frameworks like Express.js (Node.js), Django (Python), Ruby on Rails (Ruby), or Spring Boot (Java) to streamline development.