Test Engineer – Power Electronics (Traction Inverters)

Dew Software, Inc.; San Jose (CA); On-site; USD 95,000 - 135,000; Full time

Job summary

Dew Software, Inc. in San Jose, CA is seeking a hands-on Electrical Verification Engineer to join our hardware team.

You will execute verification, validation, and reliability testing of traction inverter systems and related components. Responsibilities include configuring and operating lab test benches, performing functional, thermal, environmental, and fault-injection tests, collecting data, and supporting hardware bring-up with debugging.

Qualifications

• Bachelor's degree in Electrical Engineering or related field.
• Understanding of three-phase power systems and motor drives.
• Experience with electrical measurements and circuit testing.
• Ability to read schematics and wiring diagrams.
• Strong troubleshooting and documentation skills.

Responsibilities

• Execute verification and validation of traction inverter systems.
• Configure and operate laboratory test equipment and test benches.
• Perform functional, thermal, environmental, and fault-injection testing.
• Collect, analyze, and report test data and trends.
• Support hardware bring-up, debugging, and corrective actions.
• Document procedures, results, and engineering findings.
• Assist root-cause investigations and automated test script development.
• Collaborate with cross-functional teams on product validation.
• Follow high-voltage safety requirements in all testing.

Skills

Electrical measurements

Data Analysis

Troubleshooting

High-Voltage Systems

MATLAB/Python/LabVIEW

Electric Vehicle Powertrain Systems

Education

Bachelor's degree in Electrical Engineering

Tools

DMMs

Power supplies

Electronic loads

Power analyzers

Current/Voltage probes

Job description

Key Responsibilities

• Execute verification, validation, characterization, and reliability testing of traction inverter systems and related components.


• Configure and operate laboratory test equipment and inverter test benches.


• Perform functional, performance, thermal, environmental, efficiency, and fault-injection testing.


• Collect, organize, and analyze test data, identifying issues and trends.


• Support hardware bring-up activities, debugging, and troubleshooting efforts.


• Document test procedures, results, observations, and engineering findings.


• Assist with root cause investigations and validation of corrective actions.


• Support development and maintenance of automated test scripts and data acquisition systems.


• Collaborate with cross-functional engineering teams to support product development and validation efforts.


• Follow laboratory safety requirements, including high-voltage testing procedures.

Required Qualifications

• Bachelor's degree in Electrical Engineering, Electronics Engineering, Mechatronics, or a related technical field.


• Understanding of:
  
  
  
  • Three-phase power systems
  
  
  • Electric motors and motor drives
  
  
  • Electrical measurements and circuit testing
  
  
  
  


• Experience using laboratory test equipment, including:
  
  
  
  • Digital multimeters (DMMs)
  
  
  • Power supplies
  
  
  • Electronic loads
  
  
  • Power analyzers
  
  
  • Current and voltage probes
  
  
  
  


• Ability to read and interpret electrical schematics and wiring diagrams.


• Strong troubleshooting, analytical, and problem-solving skills.


• Effective verbal and written communication skills.

Preferred Qualifications

• Experience or exposure to:
  
  
  
  • Electric vehicle powertrain systems
  
  
  • Motor control systems
  
  
  • High-voltage electrical systems
  
  
  • Experience with MATLAB, Python, LabVIEW, or similar engineering tools.
  
  
  • Familiarity with CAN, Ethernet, or automotive communication protocols.
  
  
  • Exposure to EMC, environmental, durability, or reliability testing.
  
  
  • Understanding of inverter topologies, gate drivers, MOSFETs, IGBTs, and/or SiC power devices.
  
  
  
  

Desired Competencies

• Strong hands-on laboratory and testing skills.


• Attention to detail and data accuracy.


• Ability to work independently and within cross-functional teams.


• Organized approach to documentation and reporting.


• Safety-focused mindset, particularly when working with high-voltage systems.


• Eagerness to learn and develop technical expertise.

Top Skills

• Electrical Lab Equipment


• Data Analysis


• Troubleshooting


• High-Voltage Systems


• MATLAB/Python/LabVIEW


• Electric Vehicle Powertrain Systems

Interview Focus Areas

• Electrical measurements and instrumentation


• Troubleshooting methodology


• Experience with inverter, motor drive, or EV systems