A Grids developer designs and implements grid systems, which are software infrastructure that allows for the sharing of resources across multiple computers, often in a network. They are responsible for creating software applications and components that facilitate distributed computing. They work on tasks like resource allocation, task scheduling, data management, and security protocols. They troubleshoot and solve issues related to grid computing, enhance system performance, and ensure seamless interoperability between different systems and devices. They also collaborate with other developers, system administrators, and stakeholders to deliver efficient, reliable, and scalable grid solutions.