Harness Design Engineer

Harness Design Engineer

The Harness Design Engineer will play a key role in developing next-generation energy storage systems by owning the design and integration of electrical harnesses across complex electro-mechanical assemblies. This position is ideal for an experienced engineer who excels in 3D CAD routing, collaborates effectively with cross-functional teams, and proactively drives design decisions in a fast-paced, highly collaborative environment.

• Create 3D harness routing models using CAD tools, with a primary focus on the Solid Works Harness Routing Module.
• Develop 2D harness layout drawings using appropriate electrical design and drafting tools.
• Design mounting strategies, routing paths, and interface points throughout the energy storage system to ensure robust integration and serviceability.
• Create simple mechanical parts such as brackets, clamps, strain-relief features, and other installation hardware required for harness implementation.
• Generate and maintain detailed documentation, including connector and terminal specifications, harness drawings and schematics, bills of materials (BOM), installation drawings, and cable and harness construction details.
• Maintain and update component libraries for harness and electrical design as needed, ensuring accuracy and consistency across projects.
• Collaborate closely with mechanical, electrical, test, and systems engineering teams to ensure harness designs integrate seamlessly across the full battery pack system.
• Drive and participate in design reviews, clearly presenting harness concepts, resolving interface challenges, and incorporating feedback from cross-functional stakeholders.
• Identify design gaps and integration risks early, proactively engaging relevant team members to align on solutions and drive design progression.
• Take end-to-end ownership of harness routing and mechanical integration tasks with minimal oversight, ensuring designs meet performance, reliability, and manufacturability requirements.
• Communicate design intent and changes effectively through clear verbal updates, written documentation, and visual design artifacts.

• At least 6+ years of hands-on harness design experience in electro-mechanical systems.
• Strong proficiency in Solid Works, particularly the Harness Routing Module for 3D routing and harness modeling.
• Deep understanding of mechanical integration principles, including packaging, routing constraints, and interface management in complex assemblies.
• Proven experience designing brackets, routing supports, clamps, and other simple mechanical components that support harness installation.
• Ability to develop and interpret electrical schematics and harness drawings for system-level integration.
• Excellent verbal and written communication skills, with the ability to present designs clearly to engineering stakeholders and cross-functional partners.
• Autonomous and proactive working style, capable of driving work forward independently and taking ownership of deliverables.
• Strong electrical-focused harness engineering expertise across electro-mechanical systems.

• Experience with PCBA design and system-level electrical schematics.
• Background in PCB layout and electrical design for complex systems.
• Familiarity with maintaining and updating component libraries for harness and electrical design.
• Experience working closely with electrical engineers on harness design for PCBA and system-level integration.
• Comfort working in a fast-paced, high-growth environment such as a rapidly scaling startup.
• Ability to collaborate effectively across mechanical, electrical, test, and systems engineering disciplines.

This role is based in a highly collaborative engineering environment with multiple stakeholders across disciplines, focused on developing advanced energy storage systems. Full-time onsite work at a Bay Area location is ideal, with onsite presence strongly preferred to support close collaboration and hands-on integration work. Flexible arrangements, including hybrid or remote options, may be considered for strong candidates, with the expectation of periodic onsite visits for…