Senior Relay Technician - Utility Voltage Protection

Senior Relay Technician – Utility & High‑Voltage Protection – Union

Location:

Lowell, MA, United States

Date Posted:
May 26, 2026

Requisition Number: 6539-OTHLOC-CGtMYfwD

Salary Range: USD $63.73 - $84.13 per hour

At Asplundh Electrical Testing
, safety is a priority that forms the foundation of everything we do. The Senior Relay Technician plays a critical role in ensuring the safe and reliable operation of medium‑ and high‑voltage utility substations through advanced protective relay testing, commissioning, and maintenance activities.

This position is ideal for professionals with a utility background who have hands‑on experience testing and commissioning transmission and distribution protection systems
. The successful candidate will serve as a technical lead in the field, guide crews through complex outage work, and reinforce Asplundh’s reputation for safety, precision, and service excellence.

We are experiencing strong growth and are immediately hiring Senior Relay Technicians with deep expertise in protection and control, relay schemes, and substation energization. If you enjoy solving complex protection challenges, leading safe work execution, and influencing system reliability at scale, we would like to speak with you.

• Lead job briefings and safety tailboards, reinforcing a “Safety First, Always” field culture
• Perform protective relay testing, calibration, troubleshooting, and commissioning on medium‑ and high‑voltage systems
• Test and validate transmission and distribution protection schemes, including:
  • Distance, differential, overcurrent, breaker failure, and bus protection
• Verify control and protection circuits for:
  • Power transformers
  • Medium‑ and high‑voltage circuit breakers
  • Feeder relays
  • Capacitor banks and reactors
• Support outage planning, switching coordination, energization, and restoration activities
• Perform event analysis, relay target review, and disturbance investigations
• Lead and mentor onsite technicians; coordinate work execution with project managers, system operators, and utility customers
• Create and maintain accurate test reports, as‑left settings, and field documentation
• Participate in job walks, project estimating, and customer technical discussions
• Serve as a technical resource and trainer for developing relay technicians

Work is performed at customer sites throughout the assigned region. Regular regional travel is required, with opportunities for extended assignments outside the region as needed. Company vehicle is provided for regional work‑related travel.

• 5+ years of hands‑on experience in protective relaying for utility substations
• Demonstrated experience testing medium‑ to high‑voltage (5 kV–500 kV) protection systems
• Strong working knowledge of microprocessor‑based relays
• Experience with modern relay test platforms
• Solid understanding of utility safety rules, energized work practices, and lockout/tagout procedures
• Ability to interpret wiring and logic drawings, protection diagrams, and AC/DC schematics
• Valid driver’s license; ability to work outdoors, travel, and lift up to 70 lbs

• NETA Level III or IV Certification preferred for Senior roles
• Experience with circuit breakers, power transformers, switch gear, RTUs, and substation communications
• Technical degree, apprenticeship, or military electrical training
• OSHA 10 or OSHA 30
• Valid driver’s license with a clean driving history

• Medical, dental, and vision coverage starting on day one
• Retirement plan to help you secure your future
• Company‑provided life insurance and supplemental options, including spouse and child coverage
• Aflac supplemental insurance programs
• Long‑term disability coverage
• Pre‑paid legal plan
• Employee Assistance Program (EAP) to support personal and professional well‑being
• Paid time off and paid holidays
• Access to employee discount programs and helpful resources

Benefits listed above are available to eligible employees. Eligibility requirements and plan provisions apply.

Asplundh Electrical Testing is an equal opportunity employer. All qualified applicants will receive consideration for employment regardless of race, color, religion, sex, national origin, disability, veteran status, or any other protected class.

Individuals with a disability who desire a reasonable accommodation can contact the ADA Coordinator by calling  The company partners with DHS/USCIS to e-Verify all newly hired employees.