Field Service Test Technician

North American Substation Services (NASS) is a national leader in transformer services and high‑voltage substation installation, maintenance, testing, and repair. With more than 20 years of experience, we deliver comprehensive, one‑stop solutions for utilities, industrial operations, and critical infrastructure across the United States. Our teams support the full lifecycle of substation and transformer assets, including installation, maintenance, major repairs, and diagnostic testing. 

Core services include transformer assembly, oil processing, regasket and life‑extension work, substation apparatus testing, and high‑voltage equipment maintenance to ensure safe, reliable system performance. We work on a wide range of substation equipment—power transformers, breakers, switches, arresters, and control cabinets—and perform essential diagnostics such as TTR, winding resistance, insulation resistance, power‑factor testing, and oil analysis through our dedicated in‑house laboratory. With a nationwide fleet of mobile oil‑processing units, we provide rapid on‑site support backed by strong technical expertise, a commitment to safety, and disciplined field execution to keep critical power systems operating reliably and efficiently. 

Benefits 

• Medical, dental, and vision coverage 
• 401(k) savings plan with company match 
• Health Savings Account (HSA) and/or Flexible Spending Account (FSA) 
• Life and AD&D insurance 
• Short-term and long-term disability coverage 
• Employee Assistance Program (EAP) 

Perks 

• Competitive pay 
• Talent development through instructor-led and online learning 
• Career path planning 
• Incentives for professional certifications 
• Per diem for travel 
• Referral bonuses 
• Tuition reimbursement 
•  

Position Details:

This position is responsible for substation testing and assist with overseeing testing projects, training, evaluating, and mentoring entry level test technicians as well as reviewing substation test results as well as analyzing and advising test data collection activities.  

• Leader in Safety Culture
• Adhere to all company safety policies and procedures, including the use of personal protection equipment (PPE).
• Participate in safety training programs and meetings.
• Perform testing as a crew lead on projects.
• Ability to install, test, and maintain electrical apparatus.
• Skilled in troubleshooting and problem-solving during apparatus testing.
• Understand the theory behind and reason for testing with the ability to analyze results.
• Develop and write reports.
• Clear communication with Internal and external Calisto/other metering installations & commissioning.
• Creating plans for testing apparatus.

• High School Diploma or GED (technical training preferred)
• Valid driver’s license with clean driving record
• Ability to lift 50 lbs., climb, and work outdoors in all weather conditions
• Willingness to travel extensively and work flexible hours, including nights and weekends
• Ability to read and interpret electrical diagrams and prints
• Knowledge of electrical principles and safety practices in high-voltage environments

Work Environment:

Outdoor work in varying conditions; exposure to electrical hazards, moving equipment, and high-voltage systems. Safety training and PPE provided.

EEO Statement 

NASS, an Asplundh Power Company, is an Equal Opportunity Employer. All qualified applicants will receive consideration without regard to race, color, religion, sex (including pregnancy, gender identity, and sexual orientation), national origin, age, disability, veteran status, or any other protected characteristic. NASS does not engage with individual recruiters or third party staffing agencies. Unsolicited résumés will not be accepted.