Senior HV Relay Technician – Field Lead & Protection Expert

Asplundh Electrical Testing; Sherman (TX); On-site; USD 90,000 - 120,000; Full time

Benefits offered by this job

Medical, dental, and vision coverage

Retirement plan

Company-provided life insurance

Voluntary life options

Aflac supplemental insurance

Long-term disability coverage

Employee Assistance Program (EAP)

Paid time off

Paid holidays

Employee discounts

Job summary

Asplundh Electrical Testing is seeking a Senior Relay Technician to lead protective relay testing, commissioning, and maintenance for medium- and high‑voltage substations. You will guide crews, review protection schemes, and ensure safe, reliable operation while supporting outage work and field documentation.

The role requires 5+ years of relaying experience, NETA certification, and a strong understanding of safety practices. Travel regionally is required; a company vehicle is provided.

Qualifications

• 5+ years hands-on experience in protective relaying for utility substations.
• Experience testing medium-to high-voltage protection systems (5kV–500kV).
• Strong knowledge of microprocessor-based relays and modern test platforms.
• Ability to interpret protection diagrams and AC/DC schematics.

Responsibilities

• Lead safety briefings and field tailboards, enforcing a safety-first culture.
• Perform protective relay testing, calibration, troubleshooting, and commissioning.
• Test and validate transmission and distribution protection schemes (distance, differential, etc.).
• Verify control circuits for transformers, breakers, feeders, and capacitor banks.
• Support outage planning, energization, and restoration activities.
• Create and maintain accurate test reports and field documentation.
• Mentor onsite technicians and coordinate with project managers and customers.

Skills

Protective relaying

High-voltage testing

Microprocessor relays

Relay test platforms

Electrical safety

Protection diagrams

AC/DC schematics

Wiring and logic drawings

Driver's license

Education

NETA Level III or IV Certification

Technical degree / apprenticeship / military electrical training

OSHA 10 or OSHA 30

Tools

Relay test platforms

RTUs and substation communications

Circuit breakers

Power transformers

Switchgear

Job description

Asplundh Electrical Testing is seeking a Senior Relay Technician to lead protective relay testing, commissioning, and maintenance for medium- and high‑voltage substations. You will guide crews, review protection schemes, and ensure safe, reliable operation while supporting outage work and field documentation.

The role requires 5+ years of relaying experience, NETA certification, and a strong understanding of safety practices. Travel regionally is required; a company vehicle is provided.