The federal 0800 Engineering and Architecture job category is a large and diverse group encompassing professionals who apply scientific, technical, and mathematical principles to design, build, and maintain a wide variety of systems, structures, and equipment. These roles are foundational to the government’s ability to develop new technologies, manage large-scale infrastructure projects, and ensure public safety. This category includes series such as Civil Engineers (0810), who work on roads and public works, Mechanical Engineers (0830), who design mechanical systems, and Architects (0808), who are responsible for the design of government buildings and facilities.