A fitter is a skilled tradesperson who specializes in assembling, installing, and maintaining machinery, piping systems, and structural components. They interpret blueprints and technical drawings, select appropriate materials, and use hand and power tools to cut, shape, and fit parts together accurately. Fitters often work in various industries such as manufacturing, construction, and engineering, ensuring the proper functioning and integrity of mechanical systems and structures through precise fabrication and assembly techniques. Additionally, they may perform maintenance tasks, troubleshoot issues, and adhere to safety protocols to ensure a reliable and efficient operation of equipment and systems.