Diesel Technician

Koch Companies is looking for a skilled Diesel Technician II to join our Koch NationaLease team at our St. Paul, MN location. In this role, you'll perform advanced preventative maintenance, troubleshooting, and complex repairs on both tractor and trailer units. You'll ensure all work meets DOT, state, federal, and company standards while maintaining accurate maintenance records and supporting inventory control. This position also plays a key role in developing junior technicians through on-the-job training. If you take pride in high-qualify work, enjoy solving complex mechanical challenges, and want to grow in a professional, well-equipped, clean shop environment, this role is an excellent fit for you. Compensations Package: $30.00 - $42.00/hour Starting pay within this range will be based on relevant experience, skills and qualifications $7,500 Hiring Bonus $1,200 Annual Tool Allowance $300 Boot Allowance Available Shift: Monday - Friday: 7:30AM - 4:00PM Location: St. Paul, MN Why work for Koch: Competitive pay and hiring bonus Paid time off accrual begins day one HSA with a generous company match Medical coverage through the largest nationwide network Free online medical and mental healthcare for you and your family 401K contributions upon hire with immediate company match 6 paid holidays and 3 floating holidays On the job training and career growth opportunities Team focused, supportive culture Reimbursement for heavy equipment mechanic tuition Upgrade your skills using current and innovative technology and industry specific software What you bring to the team: High school diploma or equivalent Minimum 2 years of tractor maintenance experience Ability to independently complete advanced repairs Strong mechanical aptitude and commitment to safety Preferred Qualifications: Associates degree in Heavy Duty Truck Technology or related field 3 or more years of tractor maintenance experience What you'll be doing daily: Performing scheduled preventive maintenance and advanced repairs on tractors and trailers Troubleshooting and repairing systems across broad categories including: Powertrain and driveline Suspension, steering and braking (air and hydraulic) Electrical and electronic systems, including ABS and collision mitigation HVAC and cooling systems Aftertreatment and exhaust systems Liftgate systems (electrical, hydraulic, fabrication) Reefer systems Roll up door components APU systems Completing general repairs using hand tools, jacks, hoists, and specialized equipment Reading and interpreting manuals, schematics, blueprints, and technical drawings Ordering necessary parts and supporting inventory management Maintaining a clean, safe, and organized work area Making warranty recommendations and documenting all work accurately About Koch: Koch Companies is a family-owned, industry-leading organization comprised of several divisions, including Koch Logistics, United Trailer Leasing, Koch NationaLease, and Koch Trucking. Together, these divisions are driving outstanding growth and innovation in the transportation and logistics sectors. At Koch, you'll be part of a company that values a friendly, casual, and inclusive working environment. We're committed to your growth and success offering opportunities for career development, access to current technology, and a culture that prioritizes mental, physical, and emotional well-being through robust wellness programs. You'll also enjoy competitive pay, comprehensive benefits, and the chance to make a meaningful impact in the organization. Date posted: 09/14/2026