Whiteline Express, Ltd. is a truckload carrier with headquarters in Plymouth, MI. It was founded in 1983 to provide value added services for our affiliated companies. Since that time, we have continually grown to include terminals in Plymouth, MI, Jackson Center, OH, Medina, OH, Alsip, IL, and Champaign, IL. The cornerstone of our service strategy is to provide strategic advantage to our customers. And as an EPA Smartway Partner, Whiteline Express is committed to technologies and processes that reduce our carbon footprint while protecting the environment for future generations. Whiteline Express is seeking a highly skilled and dependable Field Service - Diesel Mechanic to join our team. This role involves traveling to customer locations to perform diagnostics, maintenance, and repairs on a wide range of diesel trucks, trailers, and equipment. The ideal candidate will have extensive hands-on experience, strong communication skills, and a commitment to delivering excellent customer service. What we offer: Sign on and Retention Bonus: $5,000 Monday – Friday Schedule Wellness Programs Health Insurance Coverage, including Medical, Dental & Vision EAP, Employee Assistance Program Life Insurance Disability Insurance:  Short-Term & Long-Term 401(k) Plan, with Company Matching Contribution & Profit Sharing feature Paid Time Off    - 80 hours within 1st year & subsequent increases Paid Company Holidays Employee Discount Programs And More *Some benefits are subject to eligibility requirements Key Responsibilities: Receive work assignments and customer schedules from the General Manager. Perform scheduled and on-demand maintenance, repairs, and diagnostic services on diesel trucks, trailers, and equipment. Communicate professionally with customers regarding job progress, estimated completion times, and service details. Provide timely updates to the General Manager regarding job status and any changes to the schedule. Maintain a clean, organized, and professional service truck at all times. Stock and manage daily inventory, tools, and all required documentation in the service truck (candidate must supply their own tools). Operate the service vehicle safely and in full compliance with traffic laws and safety standards. Qualifications: Minimum 5 years of hands-on experience in diesel truck and trailer maintenance, repair, and diagnostics. DOT Inspection Certification and Air Brake Certification required. Must be capable of supplying and maintaining a sufficient inventory of personal tools needed to perform all job duties. Clean Motor Vehicle Record (MVR) required. Proven ability to interact directly with customers in a professional and service-oriented manner. Comfortable working independently on all makes, models, and types of diesel vehicles and repairs. Physical ability to stand, bend, lift 50+ lbs., and work in varied weather and temperature conditions. Strong problem-solving skills, attention to detail, and ability to manage tasks efficiently in a mobile environment.