Transformer Supervisor

NASS USA

About The Position

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. The Field Service Supervisor II leads field crews in advanced inspection, repair, and maintenance of transmission and distribution substation electrical equipment. Responsibilities include coordinating work assignments, ensuring safe and efficient execution of transformer services (testing support, oil-processing activities, bushing and gasket work), and driving documentation accuracy and job-site com

Requirements

High school diploma or equivalent
3+ years of experience in transformer services, high voltage apparatus work, or related utility/industrial field operations
Strong organizational and communication skills; ability to lead crews and coordinate daily field activities
Proficiency with MS Office and digital documentation systems
Valid driver’s license and insurable driving record
Ability to lift/carry up to 50 lbs. and work safely in outdoor, high voltage environments
Frequent overnight travel; ability to work variable hours including overtime
Willingness to complete background checks and post-offer medical evaluation/drug testing where permitted

Nice To Haves

High voltage apparatus testing experience (TTR, winding resistance, power factor, insulation resistance, CT/PT)
Transformer assembly, processing, or maintenance experience
NCCCO crane certification or relevant rigging/lifting experience
Working knowledge of substation hazards, LOTO, grounding, and arc-flash safety practices
Ability to read and interpret electrical prints, one-lines, diagrams, and test data
Understanding of transformer theory, oil-processing fundamentals, and substation equipment operation

Responsibilities

Lead and support crews performing inspection, installation, maintenance, and repair of transformers and high voltage apparatus.
Reinforce a strong safety culture through PPE adherence and regular Job Behavior Observations (JBOs).
Plan and coordinate field activities including task assignments and resource planning.
Maintain documentation of service activities, equipment status, and customer interactions.
Provide technical guidance and mentoring to field technicians.
Stay informed on transformer technologies and substation practices.
Address customer concerns and support issue resolution.
Prepare reports related to service performance and project outcomes.