Diesel & Heavy-Duty Fleet Mechanic — Diagnostics Pro

New England Truck Center; Exeter (NH); On-site; USD 34,000 - 58,000; Full time

Benefits offered by this job

Health insurance

Dental insurance

Vision insurance

401(k) with company match

Job summary

NETC Fleet Services is seeking an experienced Fleet Mechanic to maintain a growing fleet of towing, recovery, and commercial vehicles. You will diagnose, repair, and service diesel and gasoline engines across light to heavy equipment, ensuring reliability and safety.

This full-time role offers a competitive hourly wage, overtime opportunities, and a benefits package. Work is in-person with a focus on safety, quality workmanship, and documentation of service records.

Qualifications

• 5+ years of fleet, diesel, or heavy-duty mechanic experience preferred
• Experience with heavy-duty trucks, wreckers, or towing equipment is a strong plus
• Strong troubleshooting and diagnostic skills — you find the root cause, not just the symptom
• Working knowledge of DOT requirements and inspections
• Ability to work independently, prioritize repairs, and manage your workload
• Valid driver's license required
• CDL is a plus

Responsibilities

• Perform preventative maintenance and repairs on tow trucks, wreckers, tractors, trailers, and support vehicles
• Diagnose and repair mechanical, electrical, hydraulic, and air system problems
• Service and repair diesel and gasoline engines
• Handle brake, suspension, steering, and drivetrain repairs
• Perform DOT inspections and help keep the fleet safe and compliant
• Respond to breakdowns and make emergency repairs when needed
• Maintain accurate service and repair records
• Keep the shop, tools, and work areas clean, organized, and safe

Skills

Fleet maintenance

Diesel engines

Electrical systems

Hydraulic systems

Troubleshooting

Safety compliance

Tools

Heavy-duty trucks

Wreckers

Tow equipment

Job description

NETC Fleet Services is seeking an experienced Fleet Mechanic to maintain a growing fleet of towing, recovery, and commercial vehicles. You will diagnose, repair, and service diesel and gasoline engines across light to heavy equipment, ensuring reliability and safety.

This full-time role offers a competitive hourly wage, overtime opportunities, and a benefits package. Work is in-person with a focus on safety, quality workmanship, and documentation of service records.