High Voltage Substation Technician (Testing & Commissioning)

Semco Maritime

$120K — $135K *
Energy & Utilities
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Trained as an electrician or similar route through utility, industrial, or military power work.
  • Hands-on experience with MV and HV cables, transformers, and switchgear.
  • Substation experience from utility, industrial, or independent testing settings.
  • Familiarity with relay test equipment, such as Doble, TTR, and insulation resistance test sets.
  • Documented high voltage switching experience is a significant advantage.

Responsibilities

  • Test and maintain switchgear, transformers, and protection systems in substations and wind turbines.
  • Perform relay testing and verification, and conduct breaker timing and coordination.
  • Conduct insulation resistance and power factor testing while supporting commissioning efforts during energization.
  • Troubleshoot issues on offshore and onshore assets effectively as a subject matter expert.
  • Coordinate and provide input to project management throughout the project lifecycle.

Benefits

  • 3% 401(k) matching on employee contributions.
  • 100% premium coverage for medical, dental, and vision insurance.
  • 10 to 15 days of paid vacation annually.
  • 8 hours of pay for designated company holidays.
Full Job Description
The role

You will be a technician for low voltage through 220kV, onshore and offshore. Our technicians test and maintain switchgear, transformers, and protection systems on substations and wind turbines. This includes relay testing and verification, breaker timing and coordination, insulation resistance and power factor, commissioning support during energization, and troubleshooting issues on assets. Your input to project management is both needed and valued as a subject matter expert.

If you've never worked on an offshore substation before, note the job requires you to be flexible and agile. Weather can limit access to offshore assets, and planning and preparation is crucial to ensure you're ready to work when offshore because there's no truck to run back to. If you've spent your career in utility yards, this is the same electrical discipline with a harder logistics problem wrapped around it. Most techs find that's the interesting part.

You will be based in the New Bedford, MA area. You will be our lead HV specialist for US offshore wind projects, so expect 20% travel to projects along the US East Coast.

Your profile & qualifications
  • You trained as an electrician, or came up an equivalent route through utility, industrial, or military power work
  • You've worked hands-on with MV and HV cables, transformers, and switchgear
  • You have substation experience, whether that's utility side, industrial, or independent testing
  • You're fluent with the test sets: relay test equipment, Doble or equivalent, TTR, insulation resistance
  • Documented HV switching experience. If you have it, lead with it. It changes the offer

Necessary Qualifications

At least one of: journeyman or master electrician license; a completed utility or IBEW apprenticeship in substation, relay, or power work; NETA Level II or higher; a military electrical or electronics rating with HV power experience; or an associate or bachelor's in electrical engineering technology with field time behind it.

What we cover
  • GWO Basic Safety Training and offshore medical
  • HV switching authorization to our standard, including the offshore-specific requirements
  • Manufacturer training on the switchgear and relay platforms running on this project

Benefits
  • We match 3% of employee contribution to retirement
  • Medical, dental and vision insurance, Premium 100% paid
  • 10-15 days paid vacation
  • 8 hours of pay on designated company holidays

Salary range

$120,000 to $135,000 per year

Where you land in that range depends on your credentials and HV testing expierence

Physical Requirements

Physical duties for this position include but are not limited to, ability to lift less than 25 lbs independently, 2 times per day; carry 10-25 lbs, 2 times per day. Visual abilities to include near, far, peripheral, depth perception, and ability to distinguish basic colors. Hearing requirements include the ability to hear and respond to instructions, communicate effectively in loud areas (pier/dock, warehouse). Other physical tasks include occasional prolonged standing/walking; use of hands for basic /fine grasping and manipulation, repetitive motion, reaching above and below the shoulders, pushing, pulling, kneeling, bending, twisting, and stooping. Other occupational requirements include talking, traveling, working around others, and with others. Will be exposed to dust or other irritants and electrical/mechanical/power equipment hazards. Physical duties are subject to change.

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