Diesel Technician III

Knight’s Companies Inc.; Colombia; On-site; COP 152,774,000 - 210,064,000; Full time

Benefits offered by this job

Competitive pay

Medical, Dental, Vision insurance

PTO and holidays

401(k) with company match

STD/LTD

Company-paid life insurance

Voluntary insurance programs

Job summary

Knight’s Companies Inc. is seeking a dedicated Diesel Technician Level III to maintain a diverse fleet of vehicles and heavy equipment. You will guide junior technicians and ensure safe, efficient operations across our Redi-Mix, Precast, Trucking and Pumping businesses.

Applicants should have a relevant trade diploma or 5 years’ experience, a valid license, and strong diagnostic and tool skills. We offer competitive pay and comprehensive benefits in a safety‑driven environment.

Qualifications

• High school diploma or GED required.
• Auto or diesel tech diploma preferred or 5 years’ maintenance exp.
• Valid driver’s license required.
• CDL Class A or B preferred.
• Ability to read schematics.
• Proficient with Excel, Word & fleet software.

Responsibilities

• Change and repair tires per manufacturer specs.
• Oil and filter services on fleet vehicles and equipment.
• Diagnostics and repairs on electrical systems (12V/24V).
• Maintain power and hydraulic systems for safety and operation.
• Provide guidance to Diesel Technicians I and II.
• Keep accurate maintenance records.

Skills

Vehicle maintenance

Diagnostics

Electrical systems

Hydraulic systems

Team guidance

Computer skills

Tool ownership

Education

High School Diploma/GED

Auto or diesel technology diploma

5 years maintenance experience

Tools

Hand tools & toolbox

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.
• 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.

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:

• Lowcountry: 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: www.knightscompanies.com

Join our team and be part of a company that values safety, hard work and professionalism. We offer a supportive work environment, opportunities for growth, and comprehensive benefits to help you succeed in your career.

EOE

As set forth in Knight’s Companies Inc.’s Equal Employment Opportunity policy,we do not discriminate on the basis of any protected group status under any applicable law.