Senior Diesel Technician – Medium & Heavy-Duty

ACTS Fleet Maintenance Service Inc; Knoxville (TN); On-site; USD 28,000 - 69,000; Full time

Benefits offered by this job

401(k) matching

Health/Dental/Vision insurance

HSA

Life insurance

PTO

Uniforms + training

Job summary

ACTS Fleet Maintenance in Knoxville, TN is seeking a skilled Diesel Technician (Medium & Heavy-Duty) to join our shop and mobile field service teams. You will diagnose, repair, and maintain medium to heavy-duty trucks, with focus on uptime, safety, and doing it right the first time.

We offer a pay range of $20.00–$50.00 per hour, weekly pay, and a comprehensive benefits package including health insurance, retirement match, PTO, and paid uniforms.

Qualifications

• Proven hands-on experience as a medium/heavy-duty diesel technician.
• Advanced proficiency with diagnostic tools and troubleshooting.
• Ability to work independently and follow structured shop processes.

Responsibilities

• Advanced Diagnostics: reading fault codes and data on late-model trucks.
• System Repairs: diesel engines, brakes, suspensions, drivelines, transmissions.
• Electrical & Emissions: troubleshooting complex electrical systems.
• Preventative Maintenance: DOT inspections, fluid changes, brake checks.
• Field Ownership: diagnose and repair equipment on-site.

Skills

Diesel Technician

Diagnostic skills

Independence

CDL preferred

Tools

Diagnostic software

Job description

ACTS Fleet Maintenance in Knoxville, TN is seeking a skilled Diesel Technician (Medium & Heavy-Duty) to join our shop and mobile field service teams. You will diagnose, repair, and maintain medium to heavy-duty trucks, with focus on uptime, safety, and doing it right the first time.

We offer a pay range of $20.00–$50.00 per hour, weekly pay, and a comprehensive benefits package including health insurance, retirement match, PTO, and paid uniforms.