Diesel Technician - Mobile Mechanic

Make your mark as a Diesel Technician - Mobile Mechanic with National Wrecker Service in Portsmouth, NH!

Job Snapshot:

• Pay: $38/hr starting pay, plus night-call incentives

• Schedule: This full-time role follows a 4-day on / 4-day off rotation, including 8am–8pm on-site shifts and on-call responsibilities from 8pm–8am during the same four days. Mechanics who live close to the central location may take their truck home for after-hours calls.

• Benefits: Health, dental, life insurance, short- and long-term disability coverage optional, a 401(k) with company match, paid time off (PTO), and uniforms

Who We're Looking For:

• Diesel mechanic experience

• Heavy truck repair experience

• Knowledge of all makes, including Cummins, Detroit, International, Hino, Isuzu, etc.

• Knowledge of computer diagnostics and electrical systems

• Knowledge of air system diagnostics and repairs

• Understanding of steering, suspension, air brakes, and general truck systems

• Current medical card

• Valid driver's license and a clean driving record

What You'll Do As Our Diesel Technician - Mobile Mechanic:

• Provide on‑site repairs and maintenance for diesel trucks and trailers

• Work with engines from Cummins, Detroit, International, Hino, Isuzu, and others

• Perform computer diagnostics and electrical troubleshooting

• Repair air systems, suspension, steering components, and air brakes

• Apply strong diesel knowledge and heavy-truck repair experience in the field

The Bigger Picture:

For over 50 years, National Wrecker Service has delivered dependable roadside assistance and towing throughout New England. Our foundation is built on strong customer relationships, quality workmanship, and an unwavering dedication to service. As a family-owned business, we maintain a culture where employees are supported, appreciated, and given opportunities to grow. We value reliability, honesty, and the pursuit of excellence - and we pass those values on to every team member. When you join us, you become part of a long-standing tradition of high standards, community involvement, and a company that truly takes care of its people.

Let's Get Started: You're minutes away from applying to the future that you deserve! Just fill out our initial application to become our Diesel Technician - Mobile Mechanic.