A Genexus developer designs, codes, tests, and maintains software applications using the Genexus development platform. They use this AI-driven tool to automate the creation and maintenance of databases, business processes, user interfaces, and more. They work closely with clients to understand their needs, develop solutions, and troubleshoot any issues. The developer also ensures the applications are compatible with various devices and platforms. Additionally, they are responsible for updating the systems as per the changes in business requirements or technology advancements. Their role is vital in streamlining business operations and improving efficiency through technology.