Trailer and Truck Mechanic

Warehouse Services, Inc.; Wilmington (IL); On-site; USD 52,000 - 76,000; Full time

Benefits offered by this job

Free Life Insurance

Profit Sharing

Paid Vacation, Holidays and Sick Time

Ability for professional growth

Safety glasses reimbursement

Job summary

Warehouse Services, Inc. is seeking an experienced Trailer and Truck Mechanic in Wilmington, IL. You will diagnose, repair, and maintain diesel engines and trailer systems, and perform DOT inspections to ensure regulatory compliance.

The role requires familiarity with air brakes, hydraulics, and electronic diagnostics, plus a clean driving record. Benefits include weekly pay and opportunities for growth, with safety and quality standards emphasized.

Qualifications

• Minimum 2–3 years of experience in heavy truck and trailer repair.
• Strong understanding of diesel engines, air brake systems, and trailer repair.
• Ability to read and interpret maintenance manuals, schematics, and work orders.
• Proficient in the use of diagnostic software and electronic testing equipment.
• Strong problem-solving skills and attention to detail.
• Ability to work independently and as part of a team.
• Valid driver's license required; CDL preferred.
• ASE or equivalent certification preferred.
• Experience and certification with compressed natural gas (CNG) preferred

Responsibilities

• Perform diagnostics, maintenance, and repairs on diesel engines, trailers, and related systems.
• Conduct DOT inspections and ensure compliance with all federal, state, and local regulations.
• Troubleshoot and repair air brake systems, suspension, steering, and hydraulic systems.
• Inspect and repair electrical wiring, lighting systems, and electronic control units.
• Perform preventive maintenance (PMs) including oil changes, filter replacements, lubrication, and tire service.
• Diagnose and repair trailer components such as doors, floors, landing gear, and panels.
• Use diagnostic tools and software to identify issues with engines, transmissions, and after-treatment systems (DEF, DPF).
• Maintain accurate maintenance records and service logs in the company's maintenance management system.
• Operate shop tools, welding equipment, and diagnostic instruments safely and efficiently.
• Maintain a clean, safe, and organized work area in accordance with OSHA and company safety standards.

Skills

Diesel engines

Air brake systems

Diagnostics software

Troubleshooting

Attention to detail

Teamwork

Valid driver's license

CDL preferred

ASE certification preferred

CNG experience preferred

Tools

Diagnostic tools

Shop tools

Job description

POSITION: Trailer and Truck Mechanic
LOCATION: Wilmington, IL

Under appropriate supervision with latitude for independent judgment, performs a variety of assignments, both technical and clerical, including material receipt, inspections, storage and shipping. The Trailer and Truck Mechanic will perform DOT inspections, repairs, and preventive maintenance on fleet trucks and trailers. Must have strong knowledge of diesel systems, brakes, and hydraulics. Duties require manual, clerical and data entry skills. This job description in no way states or implies that these are the only duties to be performed in this position; they are only the major duties.

DUTIES & RESPONSIBILITIES:

• Perform diagnostics, maintenance, and repairs on diesel engines, trailers, and related systems.
• Conduct DOT inspections and ensure compliance with all federal, state, and local regulations.
• Troubleshoot and repair air brake systems, suspension, steering, and hydraulic systems.
• Inspect and repair electrical wiring, lighting systems, and electronic control units.
• Perform preventive maintenance (PMs) including oil changes, filter replacements, lubrication, and tire service.
• Diagnose and repair trailer components such as doors, floors, landing gear, and panels.
• Use diagnostic tools and software to identify issues with engines, transmissions, and after-treatment systems (DEF, DPF).
• Maintain accurate maintenance records and service logs in the company's maintenance management system.
• Operate shop tools, welding equipment, and diagnostic instruments safely and efficiently.
• Maintain a clean, safe, and organized work area in accordance with OSHA and company safety standards.

REQUIRED QUALIFICATIONS:

• Minimum of 2-3 years of experience in heavy truck and trailer repair.
• Strong understanding of diesel engines, air brake systems, and trailer repair.
• Ability to read and interpret maintenance manuals, schematics, and work orders.
• Proficient in the use of diagnostic software and electronic testing equipment.
• Strong problem-solving skills and attention to detail.
• Ability to work independently and as part of a team.
• Valid driver's license required; CDL preferred.
• ASE or equivalent mechanic certification preferred.
• Experience and certification with compressed natural gas (CNG) preferred

Benefits Offered:

• Free Life Insurance
• Profit Sharing
• Paid Vacation, Holidays and Sick Time
• Ability for professional growth
• Steel toe and prescription safety glasses reimbursement
• Performance Reviews at 90 days, 6 months and annually
• Weekly pay

Final candidates must possess a solid work history, pass pre-employment background and post offer drug screen/physical.

Equal Opportunity Employer
This employer is required to notify all applicants of their rights pursuant to federal employment laws.For further information, please review the Know Your Rights notice from the Department of Labor.