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Diesel Fleet Mechanic

On Site Companies
On Site Companies Salary
Saint Paul, MN Full Time
POSTED ON 9/8/2026
AVAILABLE BEFORE 1/5/2027

Position Summary:

We are seeking a Diesel Fleet Technician to oversee the inspection, diagnosis, and repair of our light and medium duty commercial vehicle fleet at our St. Paul location.

Key Responsibilities:

  • Diesel Diagnostics & Repair: Perform complete diagnostic procedures, preventive maintenance, and repairs on diesel engines, drivetrain, hydraulic systems, suspensions, and electrical systems.
  • Perform routine vehicle maintenance: Annual DOT compliance, oil changes, etc.
  • Electronic Troubleshooting: Utilize electronic diagnostic tools and software to identify system malfunctions and mechanical errors.
  • Upfit Maintenance: Service auxiliary equipment commonly mounted on F-550 chassis, including lift gates and power take-off (PTO) units
  • Fleet Maintenance: Maintain accurate service records, track inventory, execute scheduled PM checks, and adhere to all shop safety standards and personal protective equipment (PPE) requirements.

Qualifications:

  • Experience: 1–3 years of professional experience in diesel equipment diagnosis, engine repair, and light/medium-duty vehicle maintenance.
  • Technical Skills: Proficiency in hydraulic systems, chassis components, electrical troubleshooting, and welding

Requirements:

  • Valid Driver's License
  • DOT Medical Card
  • ability to lift up to 70–125 lbs
  • Willingness to work seasonal overtime as needed

Why Join Us?:
We are committed to the growth of our employees. If you are a self-starter who works well with minimal supervision and has a high level of attention to detail, we want to help you build a career here.

Compensation and Benefits:
On Site Companies offers all full time team members a comprehensive benefits package. The company paid benefits are the company offered core life and AD&D insurance and Employee Assistance Program (EAP). Voluntary benefits include medical, dental, vision, supplemental insurances (disability, accident, cancer, hospital confinement, critical illness, life). We offer a 401k with a competitive company match and 100% vesting at eligibility date.

  • $24.00 – 35.00 per hour!
  • Medical, dental, vision
  • 401K (with employer’s match!)
  • Health Savings Account
  • Life Insurance, at no cost to you
  • Employee Assistance Program, at no cost to you
  • PTO
  • Paid biweekly

Check us out online!

  • Website: www.onsiteco.com
  • Facebook: https://www.facebook.com/onsitecompany

About us:
On Site Companies is a family and woman-owned company that has been in business for over 30 years! We are growing every year and have internal growth opportunities for our team members.

On Site Companies is an Affirmative Action, equal opportunity employer. On Site Companies will not discriminate against any applicant for employment on the basis of race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, or veteran status.

Salary : $24 - $35

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