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Heavy Equipment & Diesel Mechanic Technician

Cantwell Equipment Co.
Rollinsford, NH Full Time
POSTED ON 11/8/2026
AVAILABLE BEFORE 3/7/2027

Heavy Equipment & Diesel Mechanic Technician

Company: Cantwell Equipment
Location: Rollinsford, New Hampshire
Job Type: Full-Time
Pay: Competitive hourly pay based on experience and qualifications
Schedule: Monday–Friday, with overtime opportunities as needed

Job Description

Cantwell Equipment is seeking a skilled, dependable, and motivated Heavy Equipment & Diesel Mechanic Technician to join our growing team in Rollinsford, New Hampshire.

We are looking for an experienced technician who takes pride in their work, has strong mechanical and diagnostic abilities, and is comfortable working independently as well as part of a team.

The ideal candidate will have experience diagnosing, servicing, maintaining, and repairing a wide variety of heavy construction equipment, diesel engines, and commercial vehicles.

This position involves both in-shop repairs and on-site field service, providing an excellent opportunity for a technician who enjoys a variety of work and solving mechanical challenges.

At Cantwell Equipment, we take pride in providing quality equipment, dependable service, and professional support to our customers. We are looking for someone who shares our commitment to quality workmanship, safety, and customer satisfaction.

Key Responsibilities

  • Diagnose, troubleshoot, repair, and maintain heavy construction equipment, diesel engines, and commercial trucks.
  • Perform routine preventative maintenance, inspections, and scheduled servicing.
  • Troubleshoot and repair mechanical, electrical, hydraulic, pneumatic, and diesel engine systems.
  • Diagnose equipment malfunctions using diagnostic software, scan tools, and mechanical testing equipment.
  • Perform repairs on engines, transmissions, drivetrains, brakes, steering systems, and hydraulic components.
  • Service and repair equipment including excavators, wheel loaders, bulldozers, backhoes, skid steers, and other construction machinery.
  • Inspect, maintain, and repair rental fleet equipment to ensure safe operation and rental readiness.
  • Perform DOT inspections and commercial vehicle maintenance when qualified and authorized.
  • Respond to field service calls to diagnose and repair equipment at customer locations and job sites.
  • Identify worn, damaged, or failing components and recommend necessary repairs.
  • Complete accurate service reports, work orders, and maintenance documentation.
  • Communicate effectively with management, coworkers, and customers regarding equipment condition, repair needs, and service timelines.
  • Maintain a clean, organized, and safe work environment.
  • Follow all company safety procedures and applicable industry regulations.
  • Work efficiently to minimize equipment downtime while maintaining high standards of workmanship.

Qualifications & Requirements

Required Qualifications:

  • Previous hands-on experience repairing heavy equipment, diesel-powered machinery, or commercial trucks.
  • Strong knowledge of diesel engines, hydraulic systems, electrical systems, and mechanical components.
  • Ability to diagnose and troubleshoot equipment problems independently.
  • Experience performing preventative maintenance and major mechanical repairs.
  • Ability to read and interpret service manuals, technical diagrams, and electrical schematics.
  • Familiarity with diagnostic tools, shop equipment, and industry-standard repair procedures.
  • Ability to work independently and manage multiple repair assignments.
  • Strong attention to detail, problem-solving skills, and commitment to safety.
  • Valid driver’s license with an acceptable driving record.
  • Dependable attendance, strong work ethic, and professional attitude.
  • Ability to perform the physical duties of the position, with or without reasonable accommodation.

Preferred Qualifications:

  • 3 years of experience as a heavy equipment mechanic, diesel technician, or related position.
  • Experience servicing Caterpillar, John Deere, Komatsu, Volvo, or similar construction equipment.
  • Experience with computerized diesel diagnostic systems.
  • Knowledge of diesel emissions systems, including DPF, DEF, and SCR.
  • Experience with mobile field service and on-site equipment repairs.
  • Experience performing DOT inspections.
  • CDL Class A or B license.
  • ASE certifications or technical training in diesel technology, heavy equipment repair, or a related field.
  • Welding and fabrication experience.
  • Experience with heavy equipment rental fleets.

What We’re Looking For

We are looking for a technician who:

  • Takes pride in completing repairs correctly and efficiently.
  • Is reliable, hardworking, and self-motivated.
  • Has a positive attitude and works well with others.
  • Can troubleshoot complex mechanical problems and develop practical solutions.
  • Understands the importance of customer service and minimizing equipment downtime.
  • Is willing to continue learning and adapting to new equipment and technology.
  • Is comfortable working in both a shop environment and outdoor job-site conditions.

Work Environment & Physical Requirements

This position involves working in a heavy equipment repair shop and traveling to customer locations for field service.

Responsibilities may require:

  • Standing, walking, bending, kneeling, crouching, and working around large equipment.
  • Lifting and moving tools, parts, and components, using appropriate lifting equipment when necessary.
  • Working outdoors in varying New Hampshire weather conditions.
  • Operating hand tools, power tools, diagnostic equipment, and shop machinery.
  • Following established safety practices and wearing required personal protective equipment.

Compensation & Benefits

  • Competitive hourly compensation based on experience and qualifications.
  • Full-time, year-round employment.
  • Opportunities for overtime.
  • Opportunity to work on a diverse fleet of heavy equipment and commercial vehicles.
  • Both shop-based and field service work.
  • Supportive, team-oriented work environment.
  • Opportunities for professional development and advancement.

Additional benefits, including paid time off, holidays, health insurance, and retirement plans, can be discussed based on the company’s benefits package.

Why Join Cantwell Equipment?

At Cantwell Equipment, we understand that skilled mechanics are essential to keeping our customers and equipment operating at their best.

We value employees who take initiative, work hard, and take pride in providing dependable, high-quality repairs.

As part of our team, you’ll have the opportunity to work on a wide range of heavy construction equipment, tackle different mechanical challenges, and contribute to a company focused on quality service and long-term customer relationships.

If you’re an experienced Heavy Equipment or Diesel Mechanic looking for a dependable, full-time opportunity in New Hampshire, we encourage you to apply.

How to Apply

Interested candidates should submit their resume through Indeed, including relevant mechanical experience, technical training, and certifications.

We look forward to hearing from you!

Cantwell Equipment is an equal opportunity employer. Employment decisions are made without regard to legally protected characteristics, consistent with applicable federal and New Hampshire laws.

Pay: From $30.00 per hour

Expected hours: 40.0 – 50.0 per week

Benefits:

  • 401(k)
  • 401(k) matching
  • Dental insurance
  • Health insurance
  • Health savings account
  • Paid time off

Work Location: In person

Salary.com Estimation for Heavy Equipment & Diesel Mechanic Technician in Rollinsford, NH
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