Diesel Engine Technician

NEXTRAN CORPORATION; Commerce City (CO); On-site; USD 44,083 - 67,502; Full time

Benefits offered by this job

Paid time off

401(k) retirement plan with match

Medical, dental, & vision benefits

Job summary

NEXTRAN CORPORATION in Commerce City, Colorado, is seeking a skilled Diesel Engine Shop Technician to diagnose and repair medium- and heavy-duty trucks. The role offers a pay range of $32-$49 per hour, commensurate with skills and experience. Responsibilities include engine repairs, maintenance, and mentoring apprentice technicians.

Ideal candidates will have 3-5+ years of experience, strong mechanical aptitude, and valid driver's license. The position provides a variety of benefits including paid time off and a 401(k) retirement plan with company match.

Qualifications

• 3-5+ years of diesel diagnostic experience (10+ years preferred).
• Valid driver's license with an acceptable driving record.
• Master Technician certifications in multiple areas preferred.

Responsibilities

• Diagnose and repair medium- and heavy-duty diesel engines.
• Perform complete engine and transmission rebuilds.
• Maintain a clean and safe work environment.

Skills

Diesel diagnostic experience

Mechanical aptitude

Problem-solving skills

Intermediate computer skills

Communication skills

Education

High School Diploma or GED

Tools

Diagnostic software

Hand tools

Power tools

Job description

Diesel Engine Shop Technician, Denver, CO

Location: 7250 E 56th Ave., Commerce City, CO 80022

Salary: $32 - $49 per hour, based on individual skills, certifications, education, and experience

Hours of work: 7:00 a.m.–3:00 p.m. or 3:30 p.m.–5:30 p.m.; Monday through Friday

Apply Before: Friday, July 31, 2026

We are looking for an experienced Diesel Technician who takes pride in solving tough engine problems and getting trucks back on the road. In this role you will diagnose, repair, rebuild, and maintain medium- and heavy‑duty trucks, mentor teammates, and lead projects as needed.

What You’ll Do

• Diagnose and repair medium‑ and heavy‑duty diesel engines and related systems.
• Perform complete engine and transmission rebuilds.
• Complete preventative maintenance and major mechanical repairs.
• Accurately document repairs and diagnostic findings.
• Communicate with Parts and Service teams to ensure repairs stay on schedule.
• Identify additional maintenance or safety concerns for customers.
• Maintain a clean, organized, and safe work environment.
• Follow manufacturer repair procedures and dealership standards.
• Stay current on OEM technical bulletins and industry best practices.
• Mentor apprentice technicians and help lead the team when needed.

Qualifications

• 3-5 + years of diesel diagnostic experience (10 + years preferred).
• High School Diploma or GED.
• Valid driver’s license with an acceptable driving record (CDL is a plus).
• Master Technician certifications in multiple areas preferred.
• ASE Certifications are a plus.
• Strong mechanical aptitude and troubleshooting skills.
• Intermediate computer skills, including proficiency with email, Microsoft Outlook, Word, Excel, and the ability to learn dealership management and diagnostic software.
• Excellent communication, organizational, problem‑solving, and decision‑making skills.
• Ability to work independently and as part of a team.
• Candidates must successfully complete a pre‑employment drug screening, background investigation, physical abilities assessment, and motor vehicle record (MVR) check.

Physical Requirements

• Lift up to 50 lbs. regularly, 75 lbs. frequently, and over 100 lbs. occasionally with assistance or appropriate equipment.
• Stand, walk, bend, kneel, crouch, crawl, and climb throughout the workday.
• Safely operate hand tools, power tools, torque wrenches, and shop equipment.
• Work above shoulder height and underneath vehicles using creepers or lifting equipment.
• Enter and exit truck cabs and access engine compartments safely.

Benefits

• Career paths; network of 30 dealerships.
• Disability insurance.
• Paid time off.
• Nextran paid life insurance.
• Family‑centered values.
• Medical and dependent care FSA.
• 401(k) retirement plan with match.
• Company‑paid holidays.
• EAP.
• Great medical, dental, & vision benefits.
• Social responsibility opportunities.
• 28+ years of industry experience.
• Professional growth.

We are a network of commercial truck dealerships committed to providing the best products and services through highly skilled associates who are focused on delivering the lowest life‑cycle cost to our customers. Spanning the Southeast and Midwest United States, we provide sales, parts, and service for several leading brands, including Mack, Volvo, Isuzu, GMC, Ford, Hino, and Kalmar Ottawa. EEO Employer