Diesel Technician III

Job Description

Since 1969, Knight's Companies has grown from a single septic tank pumping truck into a trusted, family-owned leader in construction and manufacturing services. Built on quality, integrity, and customer service, Knight's Companies is committed to excellence across its Redi-Mix, Precast, Trucking, and Pumping operations.

We are seeking a dedicated and skilled Diesel Technician Level III to join our maintenance team. In this role, you will be responsible for ensuring the safe, reliable, and efficient operation of a diverse fleet of vehicles and heavy equipment. You will also provide guidance and support to Diesel Technicians I and II, contributing to a collaborative and safety-focused work environment.

If you have a strong background in vehicle repair and maintenance, and a commitment to quality workmanship, we encourage you to apply.

What You'll Do:

• Change and repair tires in accordance with manufacturer specifications.

• Perform oil and filter services on a variety of vehicles including automobiles, concrete trucks, tractor-trailers, front-end loaders, and other equipment.

• Conduct diagnostics and repairs on electrical systems, ranging from auxiliary components such as lighting and switches to complex 12V and 24V electrical architectures on fleet trucks and heavy machinery.

• Assess and maintain power and hydraulic systems to ensure proper operation and safety standards.

• Assist and provide guidance to Diesel Technicians I and II, supporting team efforts and knowledge sharing.

• Maintain accurate records of maintenance and repairs performed.

• Adhere to safety protocols and ensure all work is completed in compliance with industry standards and regulations.

• Perform service calls to diagnose and repair off-site trucks and equipment using company service vehicle.

• Provide on-site repair services by traveling to plant facilities and vehicle locations.

• Diagnose and repair universal, slip joints, support bearings on drive shafts, air and hydraulic brake systems and pressurized water systems.

• Work closely with Area Fleet Manager to maintain positive workflow throughout the shop.

What You Need to Succeed:

• Valid Driver's License required.

• High School Diploma/GED preferred.

• Auto or diesel technology diploma from an accredited technical school preferred; or minimum of 5 years' experience performing maintenance or mechanical ability.

• ASE Certifications preferred.

• Commercial Driver's License Class A or B preferred.

• Ability to operate a manual transmission vehicle to determine if it is operating properly.

• Must provide own hand tools & toolbox.

• Knowledge of handheld scanning tools and the process of diagnosing vehicles.

• Ability to read schematics and familiarity with the process.

• Proficient computer skills: knowledge of Excel, Word, Fleet Management Systems, and Email

• Strong written and verbal communication skills (documentation, communication with peers, supervisors, etc.)

Physical Demands:

• Ability to lift a minimum of 50 lbs. from floor to waist height.

• Ability to carry minimum of 50 lbs. over a 5-foot span.

• Ability to push / pull a minimum of 50 lbs. across a 10-foot span.

• Ability to lift a minimum of 20 lbs. from waist to shoulder.

• Use their hands to handle, control, or feel objects, tools, or controls.

• Ability to stand for extended periods of time.

• Ability to bend or twist body without restriction.

• Ability to kneel, stoop, crouch, or crawl.

• Ability to work in extreme weather, including but not limited to high heat, low temperature, and high sun environments.

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What We Offer:

• Competitive pay
• Medical, Dental, and Vision Insurance
• Paid Time Off (PTO) and Paid Holidays
• 401(k) with Company Match
• Short-Term Disability (STD)
• Long-Term Disability (LTD)
• Company-Paid Life Insurance
• Voluntary insurance programs including Life, Critical Illness, Hospitalization, Accident and Pet Insurance.

Interested in opportunities in other Knight's Companies locations?

We're hiring across our other markets:

• Low country:
  Charleston/Jedburg/St. George/Moncks Corner
• Midlands:
  Columbia/Lexington/Irmo/Blythewood/Lugoff/Sumter
• South:
  Aiken/Hampton/Beaufort/Okatie/Richmond Hill/Savannah

Visit our careers page to explore all openings:

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