Commercial EV Technical Support Engineer

As the first overseas subsidiary of BYD group, our main focus is to provide European customers with new energy vehicles, rechargeable batteries, solar panels, energy storage systems and other new energy products, as well as related after-sales services.

About the role:

Working location: Hounslow, London

As a Commercial EV Technical Support Engineer, you will be the primary technical authority for our next-generation electric trucks and vans. This role combines digital diagnostics, remote consultation, and hands-on field support. You will ensure that fleet operators and dealership technicians have the expert guidance needed to maintain peak uptime for their electric assets.

Key Responsibilities

Online & Remote Diagnostic Support

• Serve as the Tier 2/3 escalation point for technical enquiries via our online support portal and ticketing system.

• Use advanced telematics to perform remote health checks and cloud-based diagnostics on high-voltage (HV) battery systems and electric drivetrains.

• Guide field technicians through complex software flashing, ECU parameterisation, and ADAS calibration. Analyse "Ghost Faults" and recurring DTC trends to provide feedback to the R&D and team members.

• Draft and edit technical documentation, including service bulletins, repair procedures, and troubleshooting guides

Mobile & Telephone Technical Consultation

• Provide real-time "Over-the-Shoulder" support via video link or phone for urgent roadside or workshop issues.

• Interpret and explain complex HV wiring schematics, thermal management logic, and CAN bus communication protocols to field staff and engineering teams.

Onsite Field & Fleet Support

• Travel to customer sites for "Vehicle Off Road" (VOR) emergencies requiring advanced on-site intervention.

• Lead root-cause analysis of major component failures, including traction motors, inverters, and onboard chargers.

• Deliver on-site technical briefings to fleet managers on performance and battery health optimisation.

Required Qualifications & Skills

Education: Degree in Automotive/Electrical Engineering or a Master Technician certification with specialised EV training (e.g., IMI Level 4 in Electric/Hybrid Vehicle Diagnosis).

• Technical Expertise: * Proven experience with high-voltage (HV) systems (300V–800V+).

• Mastery of diagnostic tools (e.g., CANalyzer or proprietary OEM software).

• Deep understanding of J1939/CAN bus protocols and DC fast-charging standards.

• Communication: Ability to distil highly technical engineering data into actionable instructions for workshop technicians.

• Skilled in technical writing and documentation management

• Proficient in data tools such as Excel, Power BI, and MySQL; basic coding ability in Python or SQL preferred

• Self-motivated, curious, and capable of working independently with minimal supervision

• Willingness to travel for on-site customer or field team support.

We offer:

• Performance and experience based competitive remuneration

• 25 holidays + public holidays

• Scottish Widow workplace pension

• Commute allowance

• Salary sacrifice car scheme

• Department & company wide teambuilding events.

• An exciting opportunity to be part of European transition to Zero Emissions transportation and de-carbonization of the economy

Our Purpose is to build a zero-emission future that reconnects humanity with nature and a World of clean air. We are looking for talent that connects with this mission and want to create positive impact by joining a diverse and dynamic team 🌏