Here’s a general outline on what a full stack web application developer does and the skills they typically possess:

Role of a Full Stack Web Application Developer:

1. Front-end Development: This involves creating the visual parts of a website that users see and interact with directly.

   • Key Skills: HTML, CSS, JavaScript, and frameworks like React, Angular, or Vue.js.

2. Back-end Development: This refers to the server-side of the application. A back-end developer creates and maintains the core structure of a web application.

   • Key Skills: Knowledge of server-side languages like Node.js, Ruby, Python, or Java, and understanding of databases (SQL or NoSQL).

3. Database Management: They manage the database, ensuring data integrity, security, and optimization.

   • Key Skills: SQL, MongoDB, PostgreSQL, etc.

4. Version Control/Git: This helps track and control changes to the codebase, enabling collaboration.

5. API Integration: They work with APIs (Application Programming Interfaces) to integrate different software components.

6. Testing and Debugging: Implementing automated tests for the system to ensure it works as expected.

7. Deployment and Maintenance: Deploying applications to servers and ensuring their continuous operation.

8. User Experience and User Interface Design: Though not always, some full stack developers also have a good sense of design and user experience.