System Engineer- E-Powertrain

IT Accel, Inc.; Downey (CA); On-site; USD 120,000 - 150,000; Full time

Job summary

IT Accel, Inc. in Downey, CA, seeks a Senior System Engineer - EV Powertrain to lead development, integration, testing, validation and troubleshooting of electric vehicle powertrain systems.

The role requires experience with EV systems, high-voltage architectures, battery systems, CAN networks, and vehicle controls, coordinating with OEMs and suppliers to resolve issues and document validation results. Strong communication and hands-on engineering skills are essential for success in this

Qualifications

• Bachelor's degree in a relevant engineering field.
• 3+ years of engineering experience in automotive, EV, commercial vehicle, or electric powertrain applications.
• Direct experience with EV systems, powertrain integration, and high-voltage vehicle systems.
• Knowledge of CAN/CAN Bus and automotive communication protocols.
• Experience troubleshooting complex electrical and electronic systems.
• Ability to read electrical schematics and system architecture diagrams.
• Experience with engineering test and diagnostic equipment.
• Strong analytical, problem-solving, and communication skills.
• Ability to work in a hands-on engineering and manufacturing environment and travel as required.

Responsibilities

• Develop and maintain EV powertrain system architecture, requirements, interfaces, and technical specifications.
• Integrate battery systems, vehicle controls, inverter/motor systems, DC/DC converters, onboard chargers, charging systems, and thermal management.
• Support powertrain integration into commercial vehicles and other OEM platforms.
• Develop and execute system integration, testing, and validation plans.
• Support vehicle commissioning, functional testing, road testing, and performance validation.
• Diagnose electrical, electronic, software, CAN communication, and powertrain issues.
• Analyze CAN messages, fault codes, system logs, and vehicle data to perform root-cause analysis.
• Work with engineering, manufacturing, service, suppliers, and OEM customers to resolve technical and integration issues.
• Support design reviews, FMEA activities, engineering changes, and validation documentation.

Skills

CAN communications

System integration

Electrical troubleshooting

Reading schematics

Analytical thinking

Communication

Education

Bachelor's degree in Electrical, Mechanical, Systems, Automotive Engineering

Tools

Diagnostic equipment

Job description

Position Summary

Our client is seeking a hands-on Senior System Engineer - EV Powertrain to support the development, integration, testing, validation, and troubleshooting of electric vehicle powertrain systems. The role requires experience with EV systems, high-voltage architectures, battery systems, CAN communications, vehicle controls, and system integration.

Responsibilities

• Develop and maintain EV powertrain system architecture, requirements, interfaces, and technical specifications.
• Integrate battery systems, vehicle controls, inverter/motor systems, DC/DC converters, onboard chargers, charging systems, and thermal management.
• Support powertrain integration into commercial vehicles and other OEM platforms.
• Develop and execute system integration, testing, and validation plans.
• Support vehicle commissioning, functional testing, road testing, and performance validation.
• Diagnose electrical, electronic, software, CAN communication, and powertrain issues.
• Analyze CAN messages, fault codes, system logs, and vehicle data to perform root-cause analysis.
• Work with engineering, manufacturing, service, suppliers, and OEM customers to resolve technical and integration issues.
• Support design reviews, FMEA activities, engineering changes, and validation documentation.

Qualifications

Required

• Bachelor’s degree in Electrical, Mechanical, Systems, Automotive Engineering, or a related technical field.
• 3+ years of engineering experience in automotive, EV, commercial vehicle, or electric powertrain applications.
• Direct experience with EV systems, powertrain integration, and high-voltage vehicle systems.
• Knowledge of CAN/CAN Bus and automotive communication protocols.
• Experience troubleshooting complex electrical and electronic systems.
• Ability to read electrical schematics and system architecture diagrams.
• Experience with engineering test and diagnostic equipment.
• Strong analytical, problem-solving, and communication skills.
• Ability to work in a hands‑on engineering and manufacturing environment and travel as required.

Preferred

• Experience with an automotive OEM or Tier 1 supplier.
• Experience with commercial EVs, buses, trucks, or medium/heavy-duty vehicles.
• Experience with BEV, EREV, or fuel-cell electric vehicle systems.
• Experience with lithium‑ion batteries, vehicle controls, inverter/motor controls, OBCs, DC/DC converters, and thermal management systems.