A Harness Design job involves designing, developing, and documenting electrical wiring harnesses used in vehicles, aircraft, machinery, or other electrical systems. Engineers in this role create schematics, select appropriate wiring, connectors, and protective components, and ensure compliance with industry standards. They collaborate with mechanical and electrical teams to integrate harnesses into the overall system efficiently. Additionally, they may use CAD software like AutoCAD, CATIA, or Capital Harness for design and simulation.