Semi-Trailer / Diesel Technician St. Paul MN

Dallas Trailer Repair Co.; Saint Paul (MN); On-site; USD 41,328 - 61,992; Full time

Benefits offered by this job

Medical/Dental/Vision Insurance

401(k) Matching

Paid Time Off

Holiday Pay

Training & Development Program

Productivity Bonus

Job summary

Dallas Trailer Repair Co. is seeking a Diesel Technician with 1–2 years mechanical experience to perform diagnostics, maintenance, and repairs on trucks and trailers. The role requires basic tools, safety gear, and precise documentation, with strong customer service and teamwork skills.

You will diagnose electrical and mechanical faults, replace components as per manufacturer specs, and maintain a safe workspace. ASE certifications are preferred, and a pre-employment test will be conducted.

Qualifications

• Experience: 1–2 years of mechanical or equivalent experience.
• ASE certifications are highly desired but not required.
• Must pass pre-employment knowledge/skill test, background check (10-year), and drug/medical physical exam.
• Proven mechanical aptitude and basic math skills.
• Ability to read and write in English for documentation and communication.
• Must have own tools and safety gear (safety glasses, steel‑toed shoes, hearing protection).

Responsibilities

• Diagnostics and repairs on starting & charging systems, cooling, and re-charge, electrical and common fault codes.
• Inspect, analyze, and diagnose trucks/vehicles and related equipment for mechanical issues, faulty and replacement parts.
• Perform leak detection and repairs, compressor replacements, soldering refrigerant lines, evaporator/condenser replacements and front & rear main engine seal replacements in accordance with manufacturer specifications and industry standard.
• Perform routine maintenance and Federal inspections on trailers, trucks/vehicles, and related equipment.
• Problem solve and document an action plan for all repairs and follow checklists and protocols while conducting repairs.
• Ensure a safe, organized, and tidy workspace, including regularly cleaning and maintaining tools and equipment.
• Follow all health and safety rules and guidelines, as well as common sense safety practices.
• Ability to work independently, as well as support coworkers, able to work as part of team and work well with co-workers.
• Perform other duties as assigned.

Skills

Mechanical aptitude

Reading & writing English

Basic math skills

Tools

ASE certifications

Own tools & safety gear

Job description

Career Opportunities with Dallas Trailer Repair Co.

Careers At Dallas Trailer Repair Co.

Current job opportunities are posted here as they become available.

JOB DESCRIPTION – DALLAS TRAILER REPAIR CO.

DIESEL TECHNICIAN / Refrigeration a Plus

Job Summary

This position is responsible for routine maintenance, diagnostics and repair on all trucks/vehicles and related equipment. To succeed in this role, one should have a solid knowledge of basic mechanic’s tools, service, and diagnostic equipment, as well as strong attention to detail, excellent communication, and customer service skills, and be able to work independently or as a team member.

Key Responsibilities

• Conduct diagnostics and repairs on starting & charging systems, cooling, and re-charge, electrical and common fault codes.
• Inspect, analyze, and diagnose trucks/vehicles and related equipment for mechanical issues, faulty and replacement parts.
• Perform leak detection and repairs, compressor replacements, soldering refrigerant lines, evaporator/condenser replacements and front & rear main engine seal replacements in accordance with manufacturer specifications and industry standard.
• Perform routine maintenance and Federal inspections on trailers, trucks/vehicles, and related equipment.
• Problem solve and document an action plan for all repairs and follow checklists and protocols while conducting repairs.
• Ensure a safe, organized, and tidy workspace, including regularly cleaning and maintaining tools and equipment.
• Follow all health and safety rules and guidelines, as well as common sense safety practices.
• Ability to work independently, as well as support coworkers, able to work as part of team and work well with co-workers.
• Perform other duties as assigned.

Job Summary

The Trailer Technician is responsible for performing routine maintenance, diagnostics, and repairs on all trailers and related equipment. This role requires solid knowledge of mechanical tools, service and diagnostic equipment, and repair procedures. Successful candidates will demonstrate strong attention to detail, excellent communication and customer service skills, and the ability to work independently or as part of a team.

Key Responsibilities

Inspect, analyze, and diagnose trailers and related equipment for mechanical issues and faulty parts.

Perform requested repairs according to industry standards and manufacturer specifications.

Conduct routine maintenance on trailers and related equipment.

Complete trailer body work and undercarriage repairs (e.g., air bag replacement, cross-members, dolly legs, tandem systems).

Develop and document action plans for all repairs; follow checklists and established protocols.

Maintain a clean, organized, and safe workspace, including regular care of tools and equipment.

Follow all health and safety regulations and best practices.

Collaborate with coworkers and support team goals while being able to work independently when needed.

Perform other duties as assigned.

Knowledge & Skill Requirements

• Experience: 1–2 years of mechanical or equivalent experience.
• Certifications: ASE certifications highly desired but not required.
• Must pass pre-employment knowledge/skill test, background check (10-year), and drug/medical physical exam.
• Proven mechanical aptitude and basic math skills.
• Ability to read and write in English for documentation and communication.
• Must have own tools and safety gear (safety glasses, steel‑toed shoes, hearing protection).

Physical Demands

• Heavy Work: Exert up to 100 lbs occasionally, 50 lbs frequently, and 20 lbs constantly.
• Frequent activities: Walking, standing, climbing, stooping, crouching, balancing, kneeling, and crawling.
• Manual dexterity: Frequent use of hands and fingers for grasping, typing, and operating tools.
• Sensory abilities: Talking, hearing, & vision sufficient for detailed inspection, safe operation of tools, machinery, and vehicles.

Work is performed primarily in a shop setting — both indoors and outdoors. Conditions may include exposure to:

• Non-climate-controlled environments / Hot/cold temperature changes
• Dirt, dust, soot, fumes, and other airborne particles
• Moving mechanical parts and electrical equipment
• Chemicals and limited ventilation
• High places, confined spaces, and loud noise
• Proper PPE and adherence to safety protocols are required at all times.

Hourly Rate

$30 – $45 (depending on experience and location)

• Medical, Dental, and Vision Insurance
• 401(k) Plan with Company Matching
• Paid Time Off
• Holiday Pay
• Training & Development Program
• Monthly Productivity/Bonus Incentive Program(s)
• Shift Differentials (2nd or 3rd Shift ONLY)

Sign-On Bonuses for 3rd Shift

$3,000 total bonus for qualifying technicians

This job description is not an exhaustive list of all duties or responsibilities associated with the Semi‑Trailer / Diesel Technician position. Dallas Trailer Repair Co. reserves the right to modify duties and responsibilities as necessary to meet business needs.