Diesel Technician III

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.

• 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.

• 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.
• 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.)

• 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.

$32 - $36 USD

• 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,…