Senior Electrical Harness Engineer

Pebble•Fremont, CA

21h

About The Position

Pebble is seeking a Senior Electrical Harness Engineer to own the design, development, and release of vehicle wire harness systems across the Pebble Flow platform. This is a fundamentally electrical role, you bring deep EE expertise in circuit design, connector systems, and signal integrity with the additional ability to engage meaningfully with mechanical routing constraints, package space, and 3D harness geometry in CATIA. You will be the connective tissue between our electrical architecture and the physical vehicle translating schematics into manufacturable, reliable harness designs that survive demanding off-grid and road environments. You will work closely with electrical architects, systems engineers, mechanical designers, and manufacturing to take harnesses from concept through production release.

Requirements

Bachelor's degree or higher in Electrical Engineering or closely related field
6+ years of experience in automotive or vehicle electrical engineering, with hands-on ownership of harness design and release
Proficiency in Zuken E3.series for schematic capture, harness engineering, and wire/connector data management
Working knowledge of CATIA (V5 or 3DX) sufficient to navigate 3D harness geometry, assess routing feasibility, and collaborate with mechanical design teams
Deep understanding of wire and cable selection: ampacity, voltage drop, insulation temperature ratings, shielding, and bundling practices
Strong connector and terminal expertise: familiarity with major automotive connector families (Aptiv, TE, Molex, Rosenberger, or equivalents) and crimp/seal specification
Experience designing harnesses for both low-voltage (12V/48V body systems) and high-voltage (>60V HV power circuits) applications
Understanding of grounding architecture, EMC shielding practices, and their impact on harness design
Familiarity with harness manufacturing processes: formboard assembly, wire preparation, ultrasonic splicing, and tape/conduit application
Experience applying industry standards such as USCAR-2, USCAR-21, IPC/WHMA-A-620, or equivalent OEM harness specifications
Ability to read and generate complete harness documentation packages including schematics, connector face views, splice diagrams, and wire tables

Nice To Haves

Experience with HV harness design for EV or electrified vehicle applications, including orange HV cable, shielded HV connectors, and HV interlock (HVIL) circuits
Familiarity with CATIA Electrical Harness Design (EHD) workbench for 3D harness flattening and formboard generation
Experience working directly with harness suppliers on tooling qualification, first-article inspection, and process control
Exposure to vehicle network wiring (CAN, LIN, Ethernet) and associated topology constraints
Knowledge of trailer-specific wiring considerations: 7-way connector interfaces, trailer brake controllers, and connector corrosion protection
Familiarity with over-the-air update and diagnostic architectures and their harness implications
Experience in a low-volume, high-iteration hardware development environment such as a startup or advanced development team

Responsibilities

Own end-to-end harness design: from schematic capture and wire/connector selection through harness drawing packages, formboard layouts, and production release
Use Zuken E3.series as the primary tool for schematic capture, harness engineering, and connector/wire database management
Develop and maintain harness drawings, splice diagrams, connector face views, and wire lists to automotive documentation standards
Define wire gauges, insulation ratings, terminal crimp specifications, and connector sealing strategies appropriate for HV and LV environments
Work in CATIA to review and contribute to 3D harness routing evaluating bend radii, clipping strategy, clearance to heat sources, and packaging within the vehicle structure
Collaborate with mechanical engineers on harness path definition, bracket and clip placement, and grounding point locations
Apply automotive harness design standards (USCAR, IPC/WHMA-A-620, or OEM equivalents) to ensure quality and reliability
Support DFMEA and design reviews for harness systems; identify failure modes related to chafing, connector fretting, thermal exposure, and moisture ingress
Manage connector and terminal component selection, driving standardization across the vehicle to reduce part count and supplier complexity
Partner with manufacturing and harness suppliers on DFM feedback, assembly instructions, and process validation
Support bring-up, integration testing, and field issue diagnosis, including continuity testing, insulation resistance, and fault tracing in prototype vehicles
Maintain harness BOM accuracy and coordinate ECO releases with the broader electrical team