Senior Relay Technician – Substation Protection Lead

Asplundh; Louisville (KY); On-site; USD 90,000 - 130,000; Full time

Benefits offered by this job

Medical coverage

Dental coverage

Vision coverage

Retirement plan

Life insurance

Disability coverage

Paid time off

Holidays

Employee discounts

Job summary

Asplundh Electrical Testing is seeking a Senior Relay Technician to ensure the safe, reliable operation of medium- and high-voltage substations through advanced protective relay testing, commissioning, and maintenance.

You will lead field activities, guide crews through outages, and uphold our safety‑first culture while delivering high‑quality test reports and settings documentation across utility, renewable, data center, and industrial sectors.

Qualifications

• 10+ 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 relay test platforms.
• Solid understanding of utility safety rules, energized work practices, and lockout/tagout procedures.
• Ability to interpret protection diagrams, AC/DC schematics, wiring and logic drawings.
• Valid driver’s license; ability to travel and lift up to 70 lbs.

Responsibilities

• Lead safety briefings and tailboards, reinforcing a 'Safety First, Always' culture.
• Perform protective relay testing, calibration, troubleshooting, and commissioning on HV systems.
• Test and validate transmission and distribution protection schemes (distance, differential, overcurrent, etc.).
• Verify control and protection circuits for transformers, breakers, feeders, capacitor banks.
• Support outage planning, switching coordination, energization, and restoration activities.
• Lead onsite technicians and coordinate with project managers, system operators, and utility customers.
• Create and maintain accurate test reports and field documentation.
• Participate in job walks, project estimating, and customer technical discussions.
• Serve as a technical resource and trainer for developing relay techs.

Skills

Protective relaying

High voltage relays

Microprocessor relays

Relay test platforms

Safety procedures

Driver's license

Education

NETA Level III/IV

Electrical degree or training

OSHA 10/30

Military electrical training

Tools

Relay test equipment

Test & measurement gear

Substation test kits

Job description

Asplundh Electrical Testing is seeking a Senior Relay Technician to ensure the safe, reliable operation of medium- and high-voltage substations through advanced protective relay testing, commissioning, and maintenance.

You will lead field activities, guide crews through outages, and uphold our safety‑first culture while delivering high‑quality test reports and settings documentation across utility, renewable, data center, and industrial sectors.