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Apprentice Relay Technician Jobs in Delaware (NOW HIRING)

THERMO KING

Trailer Repair Technician - Delmar

Delmar, DE · On-site

$22 - $28/hr

Trailer Repair Technician (Apprentice, Journeyman or Expert) Work setting: In-person Job Type: This ... relay values, air tanks. Brake Mechanics Certificate a plus. * Rail Gate Experience: adjust lift ...

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Apprentice Relay Technician information

See Delaware salary details

$11

$19

$28

How much do apprentice relay technician jobs pay per hour?

As of Aug 26, 2026, the average hourly pay for apprentice relay technician in Delaware is $19.38, according to ZipRecruiter salary data. Most workers in this role earn between $16.35 and $21.15 per hour, depending on experience, location, and employer.

What is an apprentice relay technician?

An Apprentice Relay Technician assists in installing, testing, maintaining, and repairing protective relay systems used in electrical power grids. They work under the supervision of experienced technicians to learn how to troubleshoot faults, perform system upgrades, and ensure proper operation of electrical protection devices. This role requires technical knowledge, attention to detail, and adherence to safety protocols. Over time, apprentices gain hands-on experience and may progress to full technician roles.

What does a typical workday look like for an apprentice relay technician?

As an Apprentice Relay Technician, your typical day involves assisting senior technicians with the inspection, installation, testing, and maintenance of protective relays and related electrical equipment. You may travel to different substations, document test results, and help troubleshoot relay malfunctions under supervision. The role often includes hands-on learning, safety briefings, and collaboration with engineers, electricians, and utility operators. This dynamic environment helps you build practical skills, understand industry standards, and prepares you for future advancement in the field.

What are the key skills and qualifications needed to thrive as an apprentice relay technician?

To excel as an Apprentice Relay Technician, you need a foundational understanding of electrical theory, troubleshooting skills, and a high school diploma or equivalent—often with vocational training preferred. Familiarity with test instruments, relay protection systems, and basic computer proficiency are typically required, and OSHA safety certification may be advantageous. Strong attention to detail, a willingness to learn, and effective teamwork and communication skills distinguish top candidates. These abilities are essential to ensure safe, accurate work, compliance with regulations, and successful progress in the technical aspects of power system protection.

What are the most commonly searched types of Relay Technician jobs in Delaware?

The most popular types of Relay Technician jobs in Delaware are:

What are popular job titles related to Apprentice Relay Technician jobs in Delaware?

For Apprentice Relay Technician jobs in Delaware, the most frequently searched job titles are:

What job categories do people searching Apprentice Relay Technician jobs in Delaware look for?

The top searched job categories for Apprentice Relay Technician jobs in Delaware are:

What cities in Delaware are hiring for Apprentice Relay Technician jobs?

Cities in Delaware with the most Apprentice Relay Technician job openings:

Apprentice Relay Technician jobs near you
Infographic showing various Apprentice Relay Technician job openings in Delaware as of August 2026, with employment types broken down into 1% As Needed, 82% Full Time, 13% Part Time, 3% Contract, and 1% Nights. Highlights an 99% Physical, and 1% Remote job distribution, with an average salary of $40,302 per year, or $19.4 per hour.

Trailer Repair Technician - Delmar

Delmar, DE • On-site

THERMO KING
See more jobs at THERMO KINGexternal

$22 - $28/hr

Full-time

Posted 12 days ago

Job description

Leader in the Industry

Thermo King West has about 200 employees across its 9 locations in 6 states. It has also been very successful in diversifying its equipment portfolio that it sells and supports. Today, Thermo King West and its subsidiaries are market leaders in Thermo King transport refrigeration, Versalift aerial buckets, TICO terminal tractors, Club Car commercial vehicles, Knapheide truck bodies, trailer repair, and consumer golf carts. Thermo King West is one of North America’s largest and most respected dealerships in the critical transport refrigeration space. 

Trailer Repair Technician (Apprentice, Journeyman or Expert)

Work setting: In-person

Job Type: This is an hourly, full-time, non-exempt position with an expected work schedule of 40 hours per week.

Schedule: 

  • M-F or M-Th. There may be times when overtime will be available/requested. 
  • 8-hour shift or 10-hour shift (depending on days worked).
Key Responsibilities

Trailer Repair Technician, Apprentice (0-2 years of experience):

  • Demonstrated mechanical aptitude.
  • Participate in a one-year Apprenticeship Program.
  • If no welding experience, be trained to weld steel, aluminum and stainless. 
  • Operate power tools and repair damaged trailers. 
  • Able to work overtime when needed in order to ensure our customers’ satisfaction. 
  • Abide by company attendance, punctuality, and safety policies.
  • Willing to work hard in a fast-paced environment. 
  • Must be willing to learn and follow directions.
  • Handle other duties as assigned.
  • Advancement is typically from Apprentice to Journeyman to Expert or to other areas within the business. 

Trailer Technician, Journeyman (2+ years of experience, including above requirements):

  • Perform PMs, BIT, and DOT Inspections.
  • Lighting and Electrical System: Diagnose, isolate, and repair lighting systems such as shorts and open circuits.
  • Must be able to perform Air Brake Inspections and Repairs: Air brake overhauls, measure brake lining thickness, drums, and s-cams, adjust brakes, replace s-cams and bushings, slack adjusters, and replace relay values, air tanks. Brake Mechanics Certificate a plus.
  • Rail Gate Experience: adjust lift-gate platform and its controls, replace rail cables and/or cylinders, motors, pumps, and relays.
  • Diagnose mechanical problems; mobile operations, quote jobs accurately; train new technicians.
  • Able to replace suspension components and landing legs; perform axle alignments 
  • Perform MIG-weld steel, aluminum and stainless.

Trailer Technician, Expert (3+ years of experience, including above requirements):

  • Performs other functions or duties as directed by management in line with management objectives. Be safety-minded and follow all safety rules.
  • Experience in Collision Repair, Dry and Refrigerated Van, Structure, Roll & Swing Doors, Interiors, Exteriors, Ceilings, and Roof repairs is a plus.

Key Success Factors 

  • Delivering superior customer satisfaction through high quality and efficient service
  • Problem solving and relationship building skills
  • Effective and proactive communication
  • Demonstrating good judgment and decision-making skills
  • Ability to work at times with little or no supervision
  • Desire to learn and continuously improve self and surroundings
  • Drive to meet and exceed productivity standards
  • Advancement is typically from Apprentice to Journeyman to Expert or to other areas within the business

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