Electric Vehicle Specialist

Chattanooga Area Regional Transportation Authority; Chattanooga (TN); On-site; USD 65,000 - 85,000; Full time

Job summary

The Electric Vehicle Specialist at Chattanooga Area Regional Transportation Authority (CARTA) in Chattanooga, TN is responsible for diagnosing, repairing, and maintaining electrical and electronic systems across diesel, gas, electric, and hybrid vehicles. This includes expertise in AC/DC electrical systems, high‑voltage components, battery maintenance, vehicle multiplexing, and HVAC systems.

This role requires proficiency in reading schematics, using precision instruments, programming AC drives,

Qualifications

• Minimum 3 years of experience with heavy-duty vehicle electrical equipment.
• Proficiency with reading electrical schematics and wiring diagrams.
• Experience diagnosing EV propulsion, high-voltage components and BMS.
• CDL license or ability to obtain ARC certification preferred.

Responsibilities

• Overhaul, diagnose, and repair all electrical and electronic systems on diesel, gas, electric, and hybrid vehicles.
• Read schematics and maintenance manual drawings to support repair work.
• Program PLCs and AC drives and update software as needed.
• Use diagnostic tools and oscilloscope to test and troubleshoot.
• Follow safety procedures when working with high-voltage components.

Skills

Reading schematics

Diagnostics

High-voltage systems

Electrical systems knowledge

PLC programming

Laptop/PC use

Education

Trade school electrical training

Tools

PLC software

Oscilloscope

Diagnostic software & scan tools

CAD/AVL equipment

High-voltage testing equipment

Job description

Schedule:Monday–Friday2:00pm–10:00pm (Training Schedule: Monday–Friday 8:00am–4:00pm)

Reports to:Foreman

Location:Chattanooga, Tennessee

Summary:

The Electric Vehicle Specialist is responsible for diagnosing, repairing, and maintaining electrical and electronic systems in diesel, gas, electric, and hybrid-electric vehicles. This includes expertise in AC/DC electrical systems, high‑voltage components, battery maintenance, vehicle multiplexing, and HVAC systems.

This role requires proficiency in reading schematics, using precision instruments, programming AC drives, updating PLC software, and performing computer‑based diagnostics.

Essential Duties and Responsibilities:

Other duties may be assigned that are in keeping with the goals and objectives of CARTA.

• Electronic Systems Diagnostics and Repair:
• Overhaul, diagnose, and repair all electrical and electronic systems on diesel, gas, electric, and hybrid electric‑powered vehicles.
• Knowledge of both alternating current (AC) and direct current (DC) electrical systems for vehicles, commercial, and household power.
• Knowledge of high‑voltage systems, including battery, charger, and converter repairs, as well as connecting test equipment to live system circuits.
• Ability to read and interpret wiring schematics and maintenance manual drawings.
• Use precision instruments and gauges to check clearances, currents, and voltages.

Computer & Software Proficiency:

• Use a laptop computer to transfer files via flash drive and update or modify Programmable Logic Controller (PLC) software.
• Program AC drives that operate various motor systems, fans, and pumps.
• Connect a computer to the onboard diagnostics system and launch programs for remote access and programming with manufacturer technical support.
• Disassemble and perform minor repairs on dual motherboard computers and reprogram them using a touchpad display.
• Understand and troubleshoot AC/DC converters and use an oscilloscope to test for excessive noise levels in DC circuits.

Safety & Environmental Awareness:

• Understand potential dangers and safely work in all environments, maintaining awareness of electrical hazards.
• Follow proper procedures when handling high‑voltage components and live circuits.

Battery Systems Knowledge:

• Knowledge of various battery types and chemistries used in CARTA’s fleet.
• Perform battery care, troubleshooting, and repairs.

HVAC and Multiplexing Systems:

• Basic knowledge of heating and air conditioning (HVAC) systems.
• Thorough understanding of Programmable Logic Controllers (PLC) and vehicle multiplexing systems such as I/O.

Preferred Knowledge & Additional Skills:

• Familiarity with CAD/AVL equipment, including security electronic repairs (preferred).
• Ability to understand and follow written and oral instructions.

Qualifications:

Education:

• Successful graduation from a trade school for electrical training.

Experience:

• Diagnosing and repairing EV propulsion systems, battery management systems, and high‑voltage components.
• Using diagnostic software and scan tools for electrical and electronic issues.
• Handling energy storage systems, including lithium‑ion batteries.
• Reading and interpreting electrical schematics and wiring diagrams.
• Minimum three (3) years of experience with heavy‑duty vehicle electrical equipment.

Skills and Certification:

• Valid Commercial Driver’s License (CDL)
• ARC certified/ability to obtain ARC certification; ASE electrical certification preferred.
• Strong problem‑solving skills, attention to detail, and the ability to follow technical instructions are essential.

Safety and Workplace Standards:

• Employees will be expected to maintain a clean and safe work area. Safety equipment is available and mandatory to be worn on jobs requiring such.

Physical Requirements:

• Physical ability to lift 50 lbs. and move various equipment, tools, and supplies.

Tools and Equipment:

• A full set of hand tools specific to electrical work is required and must be maintained.

CARTA is an equal‑opportunity employer. We embrace diversity and are dedicated to fostering an inclusive environment for all employees.