Diesel Fleet Mechanic & Upfitting Specialist

Aaa-Washington; Seattle (WA); Hybrid; USD 90,000 - 110,000; Full time

Benefits offered by this job

Health insurance

401(k) with Employer Match

Paid holidays and PTO

Flexible work arrangements

Training opportunities

Job summary

AAA Washington is seeking a skilled Fleet Mechanic to maintain and retrofit up to medium‑duty gas and diesel vehicles, including diagnostics and repairs. You will support a hybrid work model with flexible shifts and contribute to safety and maintenance records.

The role emphasizes upfitting, parts management, and collaboration with drivers to keep the fleet compliant, reliable, and ready for operations across the region.

Qualifications

• High school diploma or GED.
• 5+ years’ experience performing automotive mechanical repairs and diagnostics with medium‑duty diesel trucks, including hydraulics and electrical systems.
• Must be able to pass and maintain DOT physical requirements test.
• Previous experience designing and fabricating/welding custom builds.
• Previous experience with hydraulic and electric work on a fleet of heavy‑duty vehicles.

Responsibilities

• Independently assesses need for, inspects, and performs maintenance and repairs on all areas, including under parts, of up‑to medium‑duty gas and diesel vehicles.
• Independently diagnoses mechanical and other malfunctions of diesel vehicles and performs vehicle repairs including engine, hydraulics, transmissions, and electric systems.
• Designs and executes upfitting to meet desired end state, including metal design, fabrication, electrical wiring, cameras, toolboxes, lights, wrap, etc. to a vehicle.
• Maintains records of vehicle maintenance and repairs on appropriate forms and into fleet software programs.
• Performs safety inspections of equipment and prepares required safety documentation.
• Responsible for parts inventory, including ordering, tracking, and stocking.

Job description

AAA Washington is seeking a skilled Fleet Mechanic to maintain and retrofit up to medium‑duty gas and diesel vehicles, including diagnostics and repairs. You will support a hybrid work model with flexible shifts and contribute to safety and maintenance records.

The role emphasizes upfitting, parts management, and collaboration with drivers to keep the fleet compliant, reliable, and ready for operations across the region.