Diesel Mechanic

Hadco Construction; Lehi (UT); On-site; USD 52,000 - 72,000; Full time

Benefits offered by this job

Insurance

401(k) match

Paid time off

Holidays

Job summary

Hadco Construction is seeking an experienced Diesel Mechanic to maintain and repair our fleet of heavy-duty trucks and semis used in dirt and construction environments. This role ensures our equipment stays reliable and safe under demanding job site conditions.

In Utah-based operations, you will diagnose, repair, and test diesel systems, perform preventive maintenance, and support field service calls while upholding OSHA safety standards.

Qualifications

• 3+ years of experience as a diesel mechanic working on heavy-duty trucks or semis.
• Strong knowledge of diesel engines, drivetrains, hydraulics, and electrical systems.
• Familiarity with DOT requirements and inspections for commercial trucks.
• Ability to use diagnostic tools, service manuals, and technical documentation.
• Welding and fabrication experience preferred.
• Valid driver’s license (CDL preferred but not required).
• Must be at least 18 years old and able to pass a pre-employment drug screen.

Responsibilities

• Diagnose, repair, and maintain diesel engines, drivetrains, brakes, hydraulics, and electrical systems on heavy-duty trucks and semis.
• Perform routine inspections and preventive maintenance to minimize downtime.
• Troubleshoot issues related to equipment working in dirt and off-road conditions.
• Complete work orders and service records with accuracy and detail.
• Operate vehicles to test systems after repairs.
• Respond to field service calls when trucks require on-site repair.
• Follow OSHA and company safety standards at all times.

Skills

Diesel engines

Drivetrains

Electrical systems

Hydraulics

Welding & fabrication

DOT regulations

Diagnostic tools

Pre-employment drug screen

CDL preferred

Tools

Diagnostic tools

Job description

Description

Hadco Construction is seeking an experienced Diesel Mechanic to maintain and repair our fleet of heavy-duty trucks and semis used in dirt and construction environments. This role ensures our equipment stays reliable and safe under demanding job site conditions.

What You’ll Do

• Diagnose, repair, and maintain diesel engines, drivetrains, brakes, hydraulics, and electrical systems on heavy-duty trucks and semis
• Perform routine inspections and preventive maintenance to minimize downtime
• Troubleshoot issues related to equipment working in dirt and off-road conditions
• Complete work orders and service records with accuracy and detail
• Operate vehicles to test systems after repairs
• Respond to field service calls when trucks require on-site repair
• Follow OSHA and company safety standards at all times

What We’re Looking For

• 3+ years of experience as a diesel mechanic working on heavy-duty trucks or semis
• Strong knowledge of diesel engines, drivetrains, hydraulics, and electrical systems
• Familiarity with DOT requirements and inspections for commercial trucks
• Ability to use diagnostic tools, service manuals, and technical documentation
• Welding and fabrication experience preferred
• Valid driver’s license (CDL preferred but not required)
• Must be at least 18 years old and able to pass a pre-employment drug screen

Physical Demands & Working Conditions

• Frequent lifting and moving of parts and tools weighing 50+ lbs.
• Regular bending, kneeling, and climbing on/off trucks and equipment
• Work performed in both shop and outdoor environments, often in dirt and construction site conditions
• Exposure to grease, fumes, noise, and heavy machinery on a daily basis

Why Join Hadco?

At Hadco Construction, we believe our people are our greatest strength. With more than 750 employees across Utah, we take pride in building not only communities, but also lasting relationships. From excavation and utilities to concrete, trucking, and site development, our crews are known for their expertise, safety, and teamwork.

What We Offer

• Competitive pay
• Medical, dental, and vision insurance
• 401(k) with company match
• PTO and Paid Holidays