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Posted August 13, 2026

Diesel Technician - Multiple Locations

HireRise Partners, LLC
Mobile, AL, US Full Time

Job Description

Job Description

Position Summary

We are seeking a skilled Diesel Mechanic to inspect, diagnose, repair, and maintain heavy-duty trucks, trailers, and commercial equipment. The ideal candidate has strong troubleshooting abilities, experience with diesel engines and truck systems, and a commitment to producing quality repairs while maintaining safety and efficiency standards.

This position offers the opportunity to work with a variety of commercial truck manufacturers, diesel engines, and fleet equipment while utilizing advanced diagnostic technology and manufacturer repair procedures.

Key Responsibilities

  • Perform diagnostics on diesel engines, electrical systems, drivetrains, transmissions, brakes, steering, suspension, HVAC, and hydraulic systems.
  • Inspect, troubleshoot, repair, and replace defective mechanical and electrical components.
  • Complete preventative maintenance services, including oil changes, filter replacements, fluid checks, lubrication, and scheduled inspections.
  • Perform engine repairs, overhauls, and component replacements as needed.
  • Repair and maintain emissions and aftertreatment systems, including DPF, SCR, DEF, and EGR components.
  • Diagnose and repair air brake systems in accordance with DOT and manufacturer standards.
  • Utilize OEM diagnostic software, scan tools, and computerized equipment to identify mechanical issues.
  • Perform electrical troubleshooting, wiring repairs, and battery/charging system diagnostics.
  • Complete drivetrain repairs including clutches, differentials, axles, wheel seals, and suspension components.
  • Maintain accurate repair orders, inspection reports, and labor documentation.
  • Follow manufacturer specifications and company repair procedures.
  • Conduct road tests and quality inspections to verify completed repairs.
  • Maintain a clean, organized, and safe work environment.
  • Assist other technicians when needed and collaborate with service advisors and parts personnel.
  • Participate in ongoing technical and manufacturer training programs.

Qualifications

  • High school diploma or GED preferred.
  • Technical school or diesel technology certification preferred.
  • 2+ years of diesel repair experience (entry-level technicians with formal training encouraged to apply).
  • Experience working on Class 6-8 trucks, trailers, fleet vehicles, buses, construction equipment, or heavy equipment preferred.
  • Strong mechanical aptitude and diagnostic skills.
  • Experience using computerized diagnostic software and scan tools.
  • Ability to read wiring diagrams and service manuals.
  • Valid driver's license required.
  • CDL or willingness to obtain one is a plus.
  • ASE Medium/Heavy Truck Certifications are preferred but not required.
  • OEM certifications (Cummins, Detroit, PACCAR, Volvo, Mack, Allison, International, Freightliner, etc.) are a plus.

Knowledge & Skills

  • Diesel engine diagnostics and repair
  • Electrical troubleshooting
  • Brake systems (air and hydraulic)
  • Suspension and steering repair
  • Transmission and clutch repair
  • HVAC systems
  • Hydraulic systems
  • Preventative maintenance
  • Computer diagnostics
  • Welding and fabrication (preferred)
  • Time management
  • Problem solving
  • Attention to detail
  • Customer-focused mindset
  • Ability to work independently and within a team

Physical Requirements

  • Lift up to 75 pounds regularly.
  • Stand, bend, kneel, crawl, and climb throughout the workday.
  • Work in varying temperatures and shop environments.
  • Safely operate shop equipment including lifts, cranes, jacks, and power tools.
  • Ability to perform physically demanding work for extended periods.

What We Offer

  • Competitive pay based on experience and certifications
  • Performance incentive opportunities
  • Health, dental, and vision insurance
  • 401(k) with company match
  • Paid holidays and paid time off
  • Company-provided uniforms
  • Ongoing manufacturer and technical training
  • Career advancement opportunities
  • Modern diagnostic equipment and shop tools
  • Stable, full-time employment with opportunities for professional growth

Preferred Experience

Technicians with experience servicing one or more of the following are encouraged to apply:

  • Cummins
  • Detroit Diesel
  • Mack
  • Volvo
  • PACCAR
  • Freightliner
  • International
  • Kenworth
  • Peterbilt
  • Western Star
  • Allison Transmissions
  • Eaton/Fuller
  • Meritor
  • Bendix Air Brake Systems



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