A Group Policy developer designs, implements, and manages policies within Windows environments to regulate and control user and system operations. They use Microsoft's Group Policy technology to configure settings on devices connected to a domain. Tasks include setting up password requirements, software deployment, and system updates. They also troubleshoot any issues that may arise with these policies. Their work ensures a consistent and secure user experience across the network, enhancing system performance and reducing IT support costs. It requires knowledge of Active Directory, networking, and Windows server management. They often collaborate with IT administrators and security teams.