Test Technician - Medium/High Voltage (Union)

Asplundh Electrical Testing; San Diego (CA); On-site; USD 60,000 - 80,000; Full time

Benefits offered by this job

Medical benefits

Dental benefits

Vision benefits

Job summary

Asplundh Electrical Testing is seeking a Test Technician specializing in medium-and-high-voltage systems. This role involves field testing and maintenance of critical electrical infrastructure. The ideal candidate will have hands-on experience in electrical testing, familiarity with testing equipment, and a commitment to safety.

Responsibilities include conducting tests, troubleshooting electrical issues, and ensuring compliance with safety standards. Competitive benefits are offered from day one of employment, including medical, dental, and vision coverage.

Qualifications

• 2–5+ years of experience in electrical testing, substation maintenance, or field service.
• Hands-on experience with medium-and-high-voltage apparatus testing.
• Ability to read and interpret electrical drawings and schematics.

Responsibilities

• Perform field testing and inspection of circuit breakers, power transformers, and switchgear.
• Assist with basic protective relay testing and functional verification.
• Document test results and prepare field service reports.

Skills

Electrical testing

Substation maintenance

Problem-solving

Hands-on experience

Education

Associate degree or technical certification in Electrical Technology

Tools

Megger

Doble test equipment

Omicron

Job description

Test Technician – Medium/High Voltage

At Asplundh Electrical Testing (AET), we power reliability across critical infrastructure—and our technicians are at the heart of that mission. We value professionals who come from hands‑on, mission‑critical electrical environments and bring a strong commitment to safety, ownership, and problem‑solving. If you have experience working on complex electrical systems and thrive under pressure, this role allows you to apply your skills directly.

Key Responsibilities

• Apparatus Testing & Maintenance
  • Perform field testing and inspection of circuit breakers, power transformers, instrument transformers (CTs/PTs), switchgear, cables, and bus systems
  • Conduct electrical tests including:
    • Insulation resistance (Megger)
    • Power factor / Doble testing
    • Transformer turns ratio (TTR)
    • Winding resistance
    • Contact resistance
    • Breaker timing and mechanical inspections
    • Assist with commissioning, troubleshooting, and maintenance of substation equipment up to HV levels
• Relay Testing Support
  • Assist with basic protective relay testing and functional verification during commissioning and maintenance activities
  • Support relay‑related work using standard industry test sets such as:
    • Omicron CMC
    • Doble test equipment
    • Megger relay test tools
  • Help perform simple relay checks and system verification, such as:
    • Functional checks of protection schemes
    • Verification of wiring, inputs/outputs, and control logic
    • Participate in end‑to‑end or system‑level testing activities under supervision, without responsibility for advanced relay programming or settings development

General Field Responsibilities

• Interpret single‑line diagrams, wiring schematics, and equipment drawings
• Troubleshoot electrical equipment issues and assist in root cause analysis
• Accurately document test results and prepare field service reports
• Ensure compliance with NETA standards, safety regulations, and company procedures
• Travel to client sites and work in outdoor substation environments

Qualifications

• Required
  • 2–5+ years of experience in electrical testing, substation maintenance, or field service
  • Hands‑on experience with medium‑and‑high‑voltage apparatus testing
  • Familiarity with common test equipment such as Megger, Doble, Vanguard or similar
  • Basic understanding of protective relays and control circuits (exposure, not specialization)
  • Ability to read and interpret electrical drawings and schematics
  • Valid driver’s license and willingness to travel
• Preferred
  • Experience in a NETA‑accredited testing environment
  • NETA/NICET certification
  • Exposure to protective relay testing equipment (Omicron, Doble test sets, etc.)
  • Associate degree or technical certification in Electrical Technology or related field
  • OSHA 10/30 or equivalent safety training

Benefits

We offer a competitive range of benefits to support our employees’ health, well‑being, and financial security. Medical, dental, and vision benefits are available to all eligible employees from the first day of employment.

Equal Opportunity Statement

An Equal Opportunity Employer. Individuals with a disability who desire a reasonable accommodation can contact the ADA Coordinator by calling 1‑833‑222‑3066.

We partner with the Department of Homeland Security/U.S. Customs and Immigration Service to e‑Verify all newly hired employees.

All job offers are subject to pre‑employment drug screening and a background check.

Unless otherwise noted, we do not sponsor employees for work authorization in the U.S. for this position.