Mobile Diesel Technician

Job Description

Job Description

Mobile Diesel Technician

Location: Knoxville, TN

Take your skills on the road with National Fleet Management.

If you're an experienced diesel technician who enjoys solving problems, working independently, and taking pride in delivering quality repairs, this is the opportunity you've been looking for.

As a Mobile Diesel Technician, you'll operate a fully equipped company service truck, perform on-site repairs and maintenance, and enjoy the freedom to manage your day while supporting commercial fleets throughout your assigned territory.

Most technicians work within a 50–60 mile radius of their home , allowing you to stay local while enjoying the variety that comes with mobile service.

National Fleet Management is one of the fastest-growing heavy-duty truck service companies in the Southeast.

• 35+ fully equipped mobile service trucks currently on the road

• Operating across 9 states with continued expansion

• Aggressive expansion plans through 2028

• Stable, year-round work supporting commercial fleets

We're building the future of mobile fleet maintenance—and we're looking for technicians who want to grow with us.

$32 - $45+ per hour (based on experience and performance)

Our performance based pay structure rewards productivity, quality workmanship, and experience.

Top Mobile Technician earned $164,135 last year.

Average Mobile Technician earns over $100,000 annually.

We also offer a 90-day pay guarantee to help you transition into the role with confidence contingent on acceptance of offer.

As a Mobile Diesel Technician, you'll work independently from a company-provided service truck performing repairs where our customers need you most.

Responsibilities include:

• Diagnose mechanical and electrical issues on heavy-duty trucks

• Perform preventative maintenance and inspections

• Repair engines, brakes, suspension, steering, electrical, air, hydraulic, and fuel systems

• Accurately document repairs and completed work

• Maintain parts inventory and organization of your service truck

• Deliver professional, customer-focused service at every job

We're looking for technicians who enjoy solving problems, working independently, and taking ownership of their work.

Preferred qualifications:

• Diesel technician experience (mobile experience is a plus)

• Strong diagnostic and troubleshooting skills

• Ability to work independently with minimal supervision

• Excellent communication and customer service skills

• Valid driver's license (CDL is a plus)

• Dependable, self-motivated, and safety-focused

We invest in our technicians because they're the foundation of our success.

• Medical, Dental & Vision Insurance

• 401(k) Retirement Plan

• Paid Time Off & Paid Holidays

• Boot Reimbursement

• Safety Glasses Reimbursement

• Company-provided service truck

• Stable, year-round workload

• Ongoing training and professional development

• Additional employee benefits and perks

As National Fleet Management continues expanding throughout the Southeast, opportunities continue to grow.

Experienced technicians have the opportunity to advance into leadership, training, and management positions as new markets, teams, and service operations are developed.

If you're looking for a company where your hard work is recognized and your career can grow alongside the business, we'd love to meet you.

• Independence with minimal micromanagement

• Competitive pay with exceptional earning potential

• Local service territory—typically within 50–60 miles of home

• Consistent work throughout the year

• A growing company with real advancement opportunities

• A team that values quality work, accountability, and customer service

If you're ready to join a company that's investing in its technicians and redefining mobile diesel service, apply today and take your career on the road with National Fleet Management.

We Value Equal Opportunity

National Fleet Management is an equal opportunity employer. We are committed to creating a workplace where all qualified applicants receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, national origin, age, disability, veteran status, genetic information, or any other legally protected characteristic.

We believe diverse perspectives strengthen our teams, improve decision-making, and help us better serve our customers across all markets.

Drug-Free Workplace

National Fleet Management maintains a drug-free workplace. Employment may be contingent upon compliance with applicable drug and alcohol policies, including pre-employment and post-incident testing, where permitted by law.