Heavy-Duty Semi‑Trailer Service Technician

Dtr-Services; Saint Paul (MN); On-site; USD 65,000 - 90,000; Full time

Job summary

100Hires, Inc. is seeking a Heavy‑Duty Semi‑Trailer Service Technician in Saint Paul, MN. You will inspect, diagnose, and repair semi trailers across brake, suspension, and electrical systems, while keeping thorough service records.

Join a safety‑minded, collaborative shop that values precision and teamwork, with flexibility for overtime as needed to support a high‑volume fleet.

Qualifications

• High school diploma or equivalent; mechanical trade training is beneficial.
• Proven mechanic background—ideally with semi trailers or heavy-duty vehicles.
• Strong knowledge of mechanical systems and diagnostic tools.
• Ability to work both independently and within a team.
• Excellent problem-solving and attention to detail.
• Valid driver’s license with a clean record.

Responsibilities

• Perform preventive maintenance and repairs on semi trailers, covering brake, suspension, and electrical systems.
• Diagnose mechanical problems and troubleshoot effectively to resolution.
• Inspect trailers to ensure safety compliance and adherence to industry standards.
• Maintain clear, accurate documentation of all maintenance and repairs.
• Collaborate with colleagues to meet project timelines and shop goals.
• Uphold a tidy, safe work environment in alignment with safety protocols.
• Keep pace with industry developments and new trailer technologies.

Skills

Mechanical systems knowledge

Diagnostic tools

Teamwork

Problem solving

Attention to detail

Valid driver’s license

Education

High school diploma or equivalent

Mechanical trade training

Tools

Brake system tools

Electrical testing equipment

Suspension tools

Job description

Heavy‑Duty Semi‑Trailer Service Technician — St. Paul, MNOur missionWe keep trailers safe, compliant, and on the road—because reliable equipment powers every successful haul. If you care about precision, safety, and teamwork, you’ll fit right in.Imagine the challengeA trailer arrives with uneven brake wear, a tired suspension, and an intermittent light issue. You assess, diagnose, and plan the repair. Systems checked, components replaced or adjusted, electrical gremlin found and fixed. You update the service record, confer with a teammate to fast‑track the next unit, and reset the bay—clean, organized, and ready.Responsibilities you’ll ownPerform preventive maintenance and repairs on semi trailers, covering brake, suspension, and electrical systems.Diagnose mechanical problems and troubleshoot effectively to resolution.Inspect trailers to ensure safety compliance and adherence to industry standards.Maintain clear, accurate documentation of all maintenance and repairs.Collaborate with colleagues to meet project timelines and shop goals.Uphold a tidy, safe work environment in alignment with safety protocols.Keep pace with industry developments and new trailer technologies.Bring these qualificationsHigh school diploma or equivalent; mechanical trade training is beneficial.Proven mechanic background—ideally with semi trailers or heavy‑duty vehicles.Strong knowledge of mechanical systems and diagnostic tools.Ability to work both independently and within a team.Excellent problem‑solving and attention to detail.Valid driver’s license with a clean record.Flexibility for variable hours, including overtime as required.What it’s like hereWe’re a collaborative, safety‑minded crew that prizes quality workmanship and moves quickly without cutting corners. Join us and make an immediate impact on a high‑volume fleet.