wire harness engineer

Torrey Holistics; Berkeley (CA); On-site; USD 110,000 - 170,000; Full time

Job summary

Torrey Holistics seeks a Wire Harness Design Engineer to own mechanical design, routing, packaging, and integration of complex harness systems for next‑gen battery energy storage products, using Zuken E3 and SOLIDWORKS.

You will collaborate with Electrical, Mechanical, Manufacturing and Supply Chain teams to deliver production‑ready harnesses, develop 2D/3D models and drawings, optimize for manufacturability, reliability, and serviceability, and support pilot builds.

Qualifications

• Bachelor's degree in Mechanical Engineering required.

Responsibilities

• Own mechanical design, routing, packaging and integration of complex wire harness systems.
• Collaborate with Electrical, Mechanical, Manufacturing and Supply Chain teams to deliver production-ready harnesses.
• Develop 2D/3D harness models, installation drawings and manufacturing documentation.
• Define harness routing paths, connector interfaces and retention solutions.
• Support prototype, pilot builds and production readiness activities.

Skills

Wire harness design

Zuken E3

SOLIDWORKS

Harness routing

Mechanical packaging

Connector integration

DFM/ DFA

Education

Bachelor's degree in Mechanical Engineering

Tools

Zuken E3

SOLIDWORKS

AutoCAD

CATIA

Job description

Wire Harness Mechanical Design EngineerAbout the OpportunityOur client is a rapidly growing energy technology company developing next-generation battery energy storage systems that are preparing for large-scale commercial deployment. As they transition a flagship product from development into high-volume manufacturing, they are seeking an experienced Wire Harness Design Engineer with deep expertise in both mechanical harness design and Zuken E3 to support the next phase of product development.This is a highly visible role working at the intersection of mechanical, electrical, and manufacturing engineering, with direct influence on product reliability, manufacturability, and deployment readiness.Position OverviewThe Wire Harness Design Engineer will own the mechanical design, routing, packaging, and integration of complex wire harness systems used within large-scale battery energy storage products. The ideal candidate will bring strong hands-on experience with harness architecture, connector integration, mechanical packaging, and Zuken E3 design tools.This role requires close collaboration with Electrical, Mechanical, Manufacturing, and Supply Chain teams to deliver production-ready harness solutions capable of supporting large-scale deployment.Key ResponsibilitiesWire Harness Design & DevelopmentDesign and develop complex wire harness systems using Zuken E3 and SOLIDWORKS.Create detailed harness schematics, harness architecture, and electrical interconnect documentation in Zuken E3.Develop 2D and 3D harness models, installation drawings, and manufacturing documentation.Define harness routing paths, breakout locations, branch points, and connector interfaces.Design mechanical retention solutions including clips, brackets, mounts, strain relief systems, and cable management features.Optimize harness layouts for manufacturability, serviceability, reliability, and cost.Mechanical Integration & PackagingRoute harnesses throughout battery pack assemblies, enclosures, sensors, and supporting subsystems.Perform packaging studies to ensure proper clearances, bend radius compliance, and environmental protection.Evaluate routing paths for vibration, abrasion, thermal exposure, and assembly accessibility.Collaborate with Mechanical Engineers to resolve packaging conflicts and integration challenges.Support sensor integration and electrical component mounting within complex assemblies.Connector Selection & Electrical IntegrationSelect connectors, terminals, backshells, cable protection systems, and sealing solutions.Design and integrate IP-rated connector systems for demanding operating environments.Interpret electrical schematics and convert electrical requirements into manufacturable harness designs.Partner with Electrical Engineers to ensure system-level electrical and mechanical compatibility.Support grounding, shielding, and high-reliability electrical interface requirements.Documentation & ReleaseGenerate engineering drawings, wiring documentation, BOMs, and manufacturing packages.Create and maintain Zuken E3 harness documentation and release packages.Support engineering change orders (ECOs) and configuration management processes.Develop assembly instructions and manufacturing documentation for production teams.Ensure documentation accuracy throughout development, validation, and release cycles.Prototype & Production SupportSupport prototype builds, pilot builds, and production launch activities.Troubleshoot harness-related issues during assembly, integration, and testing.Collaborate with manufacturing teams to improve assembly efficiency and quality.Participate in root cause investigations and corrective action implementation.Support design validation and production readiness efforts.Required QualificationsBachelor's degree in Mechanical Engineering or related engineering discipline.5+ years of wire harness design experience in a production environment.Required experience with Zuken E3 for harness design, schematic development, and documentation.Strong SOLIDWORKS experience.Experience designing and releasing production wire harness assemblies.Expertise in mechanical harness routing, packaging, and integration.Experience selecting connectors and designing harness mounting and retention solutions.Knowledge of IP-rated connectors, sealed electrical interfaces, and environmental protection requirements.Ability to read and interpret electrical schematics and wiring diagrams.Experience creating manufacturing documentation, engineering drawings, and BOMs.Strong understanding of Design for Manufacturing (DFM) and Design for Assembly (DFA).Preferred BackgroundBattery Energy Storage Systems (BESS)Electric Vehicles (EV)AutomotiveAerospaceIndustrial EquipmentRoboticsPower ElectronicsRenewable Energy SystemsWhy JoinJoin a rapidly scaling energy technology company preparing a flagship product for large-scale deployment.Work on mission-critical hardware supporting the future of grid-scale energy storage.High ownership and visibility within a multidisciplinary engineering team.Opportunity to influence product design as it transitions into production.Long-term contract-to-hire opportunity.Initial onsite collaboration with flexibility after onboarding and project ramp-up.You should be proficient in:Electrical SchematicsThermodynamicsPCB Assembly (Printed Circuit Board Assembly)Single and Three Phase Power120/208/240/480 Voltage SystemsCAD SoftwareElectrical Schematic ReadingEngineering DegreeE3mechanical engineerzukenMachines & technologies you'll use:3D Modeling2D DrawingsCAD Software (AutoCAD, Solidworks, Solid Edge, Catia)altiumE3zukenharness