Commercial EV Technical Support Engineer

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

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