Semi-Trailer Service Mechanic: Precision Repairs & Safety

Dtr-Services; Saint Paul (MN); On-site; USD 52,000 - 70,000; Full time

Job summary

Dtr-Services in Saint Paul, MN is seeking a Commercial Semi‑Trailer Service Mechanic to maintain and repair trailers, ensuring roadworthiness and safety for drivers and cargo. You will diagnose issues, perform inspections, and document work with precision.

Ideal candidates have hands-on experience with semi trailers, proficiency in mechanical, electrical, and hydraulic systems, and the ability to read schematics. A valid license and clean driving record are required.

Qualifications

• Hands-on experience working on semi trailers or similar heavy equipment.
• Ability to interpret technical manuals, wiring diagrams, and schematics.
• Detail-oriented, with strong follow-through on repairs.
• Valid driver’s license and a clean driving record.

Responsibilities

• Service and repair trailer brake, suspension, and electrical systems.
• Diagnose faults using observation, testing, and schematics.
• Perform safety and compliance inspections; recommend part replacements or repairs.
• Record all work performed and parts used in a clear, organized manner.
• Collaborate with peers to elevate service standards and efficiency.
• Stay informed on new techniques and best practices for semi trailer maintenance.

Skills

Semi trailer maintenance

Electrical systems

Hydraulic systems

Schematics interpretation

Team communication

Education

High school diploma or equivalent

Job description

Dtr-Services in Saint Paul, MN is seeking a Commercial Semi‑Trailer Service Mechanic to maintain and repair trailers, ensuring roadworthiness and safety for drivers and cargo. You will diagnose issues, perform inspections, and document work with precision.

Ideal candidates have hands-on experience with semi trailers, proficiency in mechanical, electrical, and hydraulic systems, and the ability to read schematics. A valid license and clean driving record are required.