Diesel Mechanic

Company Description

hth companies is an industrial services provider offering mechanical insulation, mechanical maintenance, scaffolding, industrial cleaning, and various other services to meet our customers' needs across the Midwest. At hth companies, we continue to promote the merit shop philosophy we were founded upon in 1984; rewarding employees based upon their merits of skills, productivity, and quality workmanship. Our vision is to be an organization that creates an environment where employees are encouraged to develop their full potential to provide quality work.

We strive each day to better serve our customers and employees.

The Diesel Mechanic will be primarily responsible for inspection, maintenance, diagnosis, and repair of motor vehicle equipment. The role typically involves oil changes, transmission/motor repairs, and other basic mechanic duties on cars, trucks, and semis. Candidates should be able to work with little direction, manage their time effectively, and occasionally travel within a three‑hour radius using the company vehicle. Own tools are required.

• Maintain a variety of vehicles, including company fleet cars, trucks, heavy equipment, industrial vacuum trucks, industrial hydroblast pumps, tractor/trailers, and other motor vehicles.
• Perform routine and preventive maintenance such as oil changes and tune‑ups.
• Conduct tests on parts and systems to ensure proper function.
• Identify mechanical problems visually or with diagnostic equipment.
• Examine critical parts and systems using a standard checklist.
• Repair or replace malfunctioning parts and systems such as brake pads, belts, water pumps, transmissions, and other mechanical components.
• Plan and schedule repairs and maintenance to meet deadlines.
• Visit job sites within a three‑hour radius for inspections.
• Test drive vehicles to confirm safe and proper operation.
• Submit purchase orders to ensure adequate parts inventory.
• Perform various other duties as required.

• Two to five years of experience as a diesel mechanic.
• Experience with vacuum trucks or water blasters.
• Basic verbal and written communication skills.
• Basic interpersonal and customer service skills.
• Basic organizational skills and attention to detail.
• Working understanding of safety principles, practices, and procedures.
• Excellent time‑management skills with a proven ability to meet deadlines.
• Ability to function well in a high‑paced and sometimes stressful environment.

• Problem‑solving ability and development of solutions.
• Follows directions of manager/lead/superintendent and clarifies responsibilities when needed.
• Respects self, co‑workers, managers, company, contractors, and clients.
• Adaptable in methods used to complete tasks.
• Supportive and teaching mindset.
• Analytical and ability to address complex data or situations.
• Writing reports and business correspondence.
• Excellent communication skills and professionalism with staff and prospective employees.
• Willing to go the extra mile.
• Motivated to learn new skills.
• Shows up on time and ready to complete work.
• Ability to work independently.

• Lift, push, pull, and move up to 50 lbs. routinely.
• Climb ladders and stairways regularly during the shift.
• Observe conditions and others as a safety attendant, staying alert while seated for long periods.
• Use hand tools, power tools, and other equipment safely and controlled.
• Inspect site, tools, and equipment.
• Perform behavioral observations focusing on safety and process improvement.
• Follow safety protocol and report incidents or unsafe conditions immediately.

• hth companies operates 24/7. Hours vary and overtime is regular.

• Must provide proof of successful completion of OSHA 10‑hour certification within 60 days of starting.

• Employer‑supplemented health insurance.
• Employer‑paid life insurance.
• Voluntary vision and dental insurance.
• Voluntary critical illness and group injury insurance.
• 401K with 3% company match.
• Tuition reimbursement.

hth companies is an equal opportunity employer. hth companies considers applicants without regard to race, color, national origin, ancestry, religion, creed, age, disability, sex, or sexual orientation, gender identity or expression, genetic information, veteran status, marital status, or any other legally protected status.