Prototype Wire Harness Technician – EV & Automotive

Workhorse

Wixom (MI)

On-site

USD 52,000 - 76,000

Full time

14 days+

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Benefits offered by this job

Dog-friendly workplace

Electric mobility leadership

People-first culture

Innovation+Execution

Growth-oriented environment

Job summary

Workhorse in Wixom, MI is seeking a skilled electrical harness technician to fabricate prototype wire harnesses for development and test vehicles. You will build from schematics, install components, and perform retrofits to support design changes and testing.

The role requires 3–5 years of experience, reading electrical diagrams, and strong troubleshooting. You will work with engineers and manufacturing teams, maintaining records and ensuring safety protocols for high-voltage systems.

Qualifications

High school diploma or equivalent; tech degree or automotive electrical cert preferred.
3–5 years building automotive wire harnesses or performing vehicle electrical modifications.
Ability to read and interpret electrical schematics, wiring diagrams, harness drawings, connector views, and vehicle build instructions.
Experience with wire cutting, stripping, crimping, soldering, splicing, shielding, braiding, taping, and connector assembly.
Familiarity with automotive terminals, connectors, seals, wire types, protection materials, and routing hardware.
Experience using hand-crimp tools, automated wire-processing equipment, multimeters, continuity testers, and other electrical diagnostic equipment.
Understanding of proper wire routing, circuit protection, grounding, strain relief, abrasion protection, and sealing practices.
Strong troubleshooting skills and attention to detail.
Ability to document build issues and communicate required design changes to engineering.
Experience working safely around high-voltage vehicle systems is preferred

Responsibilities

Fabricate prototype low- and high-voltage wire harnesses for development vehicles, test vehicles, benches, and electrical systems.
Build harnesses from electrical schematics, wiring tables, harness drawings, connector definitions, and engineering instructions.
Cut, strip, crimp, splice, solder, seal, label, bundle, and protect wiring in accordance with engineering and workmanship requirements.
Install prototype harnesses and electrical components into development vehicles.
Perform electrical retrofits and wiring modifications on existing vehicles to support design changes, testing, troubleshooting, and vehicle upgrades.
Remove and replace terminals, connectors, wiring, protection materials, and electrical components as required.
Route and secure wiring to meet packaging, durability, serviceability, and safety requirements.
Perform continuity, resistance, isolation, and point-to-point testing to verify completed harnesses and vehicle modifications.
Troubleshoot open circuits, short circuits, terminal issues, incorrect pinouts, communication faults, and other vehicle electrical problems.
Identify issues with drawings, parts, tooling, or installation instructions and provide feedback to engineering.
Support prototype vehicle builds, engineering development activities, validation testing, and root-cause investigations.
Maintain accurate records of vehicle modifications, harness revisions, deviations, and completed work.
Work closely with wiring DREs, electrical engineers, vehicle technicians, manufacturing, and suppliers to resolve build and installation issues.
Maintain harness-build tools, electrical test equipment, terminals, connectors, wire, and prototype materials.
Follow established electrical-safety procedures, including high-voltage lockout and verification requirements when applicable.