Maintenance Supervisor

PENINSULA TRUCK LINES•Auburn, WA

6d•$7,667 - $8,167•Onsite

About The Position

The Western Washington Maintenance Supervisor oversees, plans, and coordinates maintenance activities for company-owned trucks, trailers, and shop equipment. The role helps ensure fleet assets are safe, compliant, reliable, and maintained in accordance with company standards and DOT regulations. The supervisor leads the Western Washington maintenance team, manages vendor relationships and costs, oversees preventive and predictive maintenance programs, uses technology-based fleet management systems, and collaborates with operations to minimize downtime and maximize asset lifecycle.

Requirements

At least 7 years of experience in diesel, heavy truck, or fleet maintenance.
At least 5 years of supervisory or management experience.
Strong knowledge of commercial truck repair, diagnostics, and preventive maintenance standards.
Experience with DOT/FMCSA regulations and documentation requirements.
Proficiency with maintenance management software.
Excellent communication, leadership, and organizational skills.
Technical certification or a degree in diesel technology or a related field.

Nice To Haves

CDL license.

Responsibilities

Manage Western Washington preventive maintenance schedules, inspections, and repairs for tractors, trailers, and related equipment.
Ensure vehicles comply with DOT, OSHA, and company safety regulations.
Track maintenance records, warranties, recalls, and compliance documentation.
Supervise and develop maintenance technicians, schedule workflow, and set performance expectations under the direction of the Corporate Maintenance Manager.
Provide training on new technologies, diagnostic tools, and OEM digital platforms.
Foster a safety-first, collaborative, and continuous-improvement culture.
Ensure work orders, preventive maintenance schedules, repair histories, inspections, and parts usage are accurately recorded in the system.
Use telematics, ELD, and diagnostic data for proactive and predictive maintenance scheduling.
Manage Western Washington data-driven maintenance reports and KPI dashboards, including cost per mile, downtime, and preventive maintenance compliance rate.
Monitor inventory and approve parts orders while minimizing waste.
Manage Western Washington tire inventory and ensure accurate tracking of casings and tread life.
Oversee service companies, verify billed hours and rates, and ensure performance meets expectations.
Maintain and monitor steer-tire standards.
Oversee the seasonal tire changeover program in Western Washington as needed.
Maintain oil analysis sample kit inventory and replenish it as required.
Follow up to ensure recommended repairs are completed and subsequent verification samples are obtained.
Collaborate with dispatch and operations to schedule maintenance without affecting delivery timelines.
Provide timely updates on equipment status, repair ETAs, and fleet availability.
Coordinate responses to breakdowns, emergencies, and roadside assistance situations.