EV Electrical Systems Technician

Job Overview

We are seeking a skilled and dedicated EV Electrical Systems Technician to join our team, focusing on the operational maintenance, diagnostics, and customer support of our electric vehicle (EV) systems.

This hands-on role involves fabricating wiring harnesses, troubleshooting CAN/OBD networks, performing vehicle servicing, and supporting field operations. The ideal candidate brings practical experience in EV electrical systems and a commitment to ensuring vehicle reliability and customer satisfaction.

This position is key to maintaining our vehicles' performance and supporting our growing fleet.

Location: San Jose, CA 95138

Employment Type: Full-Time

Start Date: Q4 2025

Key Responsibilities

● Fabricate, install, and route high-voltage and low-voltage wiring harnesses in compliance with safety and quality standards.

● Interpret and work from wiring diagrams, schematics, and engineering drawings to install or replace instrument clusters, dashboards, and other electronic components such as onboard computers, lidar, cameras, etc.

● Perform prototype harness builds, debug issues, and support design verification for custom vehicle builds.

● Diagnose and troubleshoot CAN bus and OBD communications, including analyzing message traffic using CAN analyzers.

● Support integration of subsystems like BMS, motor controllers, and displays over the CAN bus network.

● Understand basic Battery Management System (BMS) functions: state-of-charge monitoring, thermal protection, cell balancing, diagnostics over CAN or OBD protocols.

● Support setup, replacement, and diagnosis of motor controller systems, including communication and integration with BMS and other ECUs.

● Use diagnostic tools such as digital multimeters, current probes, oscilloscopes, and logging equipment to diagnose electrical and CAN network issues.

● Assist in software/firmware updates of critical control modules including BMS, motor controllers, and displays via OBD or proprietary interfaces.

● Execute test plans provided by the engineering teams, carry out troubleshooting of issues, and provide comprehensive reports.

● Collaborate with engineering, quality, and testing teams to identify and resolve electrical or system-level issues.

● Train other technicians on testing, troubleshooting, and vehicle servicing activities.

Qualifications & Skills

● Technical background (degree or vocational training) in automotive, electrical, or electronics engineering.

● Candidates must have at least 5 years of relevant industry experience.

● Hands-on experience in crimping, soldering, stripping, and harness assembly, including connector familiarity and quality techniques.

● Fabrication of prototype test rigs and wiring subsystems.

● Strong proficiency in diagnosing EV electrical systems, including CAN, Ethernet, high-voltage systems.

● Practical understanding of BMS and motor controller communication over CAN and integration of vehicle subsystems.

● Use of test equipment like oscilloscopes, voltmeters, current probes; canadapters experience with tools such as Vector CANalyzer or PicoScope.

● Bonus (Preferred) Qualifications:

• Experience with OBD-II diagnostics, DTC extraction, and EV-specific diagnostic protocols.
• Knowledge of safety procedures and standards for EV high-voltage systems.
• Certifications in harness fabrication.

Work Expectations

● Receive vehicle deliveries, perform initial inspections, and complete pre-delivery checklists.

● Diagnose and resolve vehicle issues; document findings and share reports with engineering teams.

● Maintain vehicle condition, including general maintenance and overall presentability.

● Deliver vehicles to customers and travel to customer sites for diagnostics and repairs.

● Handle transport of materials between company locations.

● Maintain a clean and organized work area.

● Support other technicians and take on additional tasks as needed.

● Flexibility to work or attend meetings outside normal business hours when required.

Why Join Us?

At Boson, you'll play a vital role in maintaining and enhancing our Boson EV fleet, ensuring top-tier service and customer trust. We offer competitive compensation, opportunities for growth, and a supportive team environment focused on excellence.

If you’re passionate about EV technology and hands-on vehicle maintenance, we invite you to apply! Please submit your resume and a cover letter highlighting relevant EV experience to [careers@bosonmotors.com].

Boson is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.