Test Engineer - Electrical

Zenith Services Inc.; Boston (MA); On-site; USD 120,000 - 160,000; Full time

Job summary

Zenith Services Inc. is seeking a senior electrical engineer to lead the characterization of subsystems and to own tester development in a fast-paced lab environment.

You will perform voltage and current measurements, signal integrity, timing analysis, and debugging of analog and digital circuits. You will collaborate with design engineers, firmware, mechanical teams, and manufacturing to bring testers online, develop custom test hardware, and ensure reliable data for verification and

Qualifications

• 7–10 years of hands-on electrical engineering experience, with emphasis on test systems or tester development.
• Strong ability to perform circuit analysis and debugging of analog/digital circuits.

Responsibilities

• Own test execution in the lab, including bring-up of testers and subsystems.
• Debug under schedule pressure and support design verification.
• Develop and maintain subsystem characterization testers and custom test hardware.
• Collaborate with design engineers, firmware, and manufacturing to integrate testers into lab and production environments.

Education

B.S. or M.S. in Electrical Engineering or related field

Tools

Oscilloscopes

Logic analyzers

DMMs

Power analyzers

Job description

• Perform electrical characterization of subsystems:
  • Voltage/current measurements
  • Signal integrity and timing analysis
  • Noise, grounding
• Troubleshoot complex issues involving:
  • Analog and digital electronics
  • Power supplies, converters, and motor drives
  • Communication interfaces (I²C, SPI, UART, CAN, Ethernet, USB)
• Own test execution in the lab, including:
  • Bring‑up of new testers and subsystems
  • Debug under schedule pressure
  • Support for design verification and troubleshooting activities
• Oscilloscopes, logic analyzers, DMMs, power analyzers
• Environmental and stress testing setups (as applicable)
• Work closely with:
  • Design engineers (EE, ME, firmware, systems)
  • Manufacturing

Tester Development & Integration

• Design, build, and maintain subsystem characterization testers, including:
  • Power distribution and protection
  • Signal conditioning and measurement
  • Control, interlocks, and safety circuits
• Develop custom test hardware including fixture schematics, wiring harnesses, and test jigs.
• Integrate testers with:
  • Mechanical fixtures
  • Sensors, actuators, power electronics, and embedded systems
  • Lab and production environments

Required Qualifications

• B.S. or M.S. in Electrical Engineering or related field
• 7-10 years of hands‑on electrical engineering experience, with the majority focused on:
  • Test system or tester development
  • Subsystem‑level electrical integration and characterization
• Demonstrated experience designing, circuit analysis and debugging:
  • Analog and digital circuits
  • Power electronics and low‑voltage/high‑current systems
  • Demonstrated experience in complex electrical system design and integration
  • Strong analytical skill in circuit analysis, failure diagnostics
  • Strong in logical reasoning and ability in root cause analysis and proactive corrective actions.
• Strong practical troubleshooting skills using lab instrumentation
• Ability to work directly in the lab and drive issues to closure
• Ability to clearly document designs, test results, and design changes
• Understanding of design considerations for EMI/EMC, thermal management, and reliability
• Experience in manufacturing support and DFM/DFT
• Experience across the product development lifecycle is a plus
• Strong interpersonal and communication skills

Strongly Preferred Experience

• Digital, analog and mixed circuit
• Embedded subsystems
• Motion control systems
• Sensor and transducer technologies
• Proficiency with communication protocols such as CAN, Ethernet, RS-232, and RS485.