Diesel Tech Jobs in Mobile, AL (NOW HIRING)

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