An Applications Web Developer designs, creates, and maintains web applications. They write efficient code, primarily using HTML, CSS, JavaScript, and server-side languages like PHP or .NET. They work closely with clients or internal teams to understand their needs and translate them into technical requirements. They are responsible for the entire application lifecycle, from concept and design to testing, deployment, and maintenance. They ensure the application’s functionality, performance, and responsiveness to different devices. They also troubleshoot issues, implement security measures, and constantly update their skills to keep up with the latest web technologies.