A Microsoft Applications Developer designs, codes, tests, and debugs software applications using Microsoft technologies. They work with various programming languages like .NET, C#, and ASP.NET to build robust and scalable applications. They often collaborate with other developers, project managers, and stakeholders to understand the software requirements, develop functional specifications, and ensure the application meets user needs. They also perform regular maintenance and updates to optimize performance, resolve issues, and add new features. Their role requires strong technical skills, problem-solving abilities, and knowledge of Microsoft solutions and software development principles.