Wire Harness Design Engineer Jobs, Employment | Indeed 422 Wire Harness Design Engineer jobs available on Indeed. Apply to Wiring Engineer, Design Engineer, EDS Engineer and more! Q: What Is a Wire Harness Design Engineer? | ZipRecruiter A: A wire harness design engineer works to design harnesses to protect electrical wiring and cable in airplanes, cars, and other devices that rely on electrical power. In this career, your duties focus on designing harnesses that allow the electrical distribution system to bring energy safely to the outlet where the mechanisms, product, airplane, or vehicle needs it.