Maintenance Supervisor

Peninsula Truck Lines, Inc.; Portland (OR); On-site; USD 90,000 - 120,000; Full time

Job summary

Peninsula Truck Lines, Inc. is seeking an Oregon Maintenance Supervisor to oversee, plan, and coordinate maintenance on our fleet of company-owned trucks, trailers, and shop equipment.

You will manage the team, vendor relationships, and data-driven maintenance programs to ensure safety, reliability, and DOT compliance. In this role, you will lead ongoing PM activities, leverage telematics and diagnostic data, and drive cost control while collaborating with operations to minimize downtime and

Qualifications

• 7+ years in diesel, heavy truck, or fleet maintenance.
• 5+ years of supervisory or management experience.
• Strong knowledge of commercial truck repair, diagnostics, and PM standards.
• Experience with DOT/FMCSA regulations and documentation requirements.
• Proficiency with maintenance management software.
• Excellent communication, leadership, and organizational skills.

Responsibilities

• Oversee PM schedules, inspections, and repairs for tractors, trailers, and related equipment.
• Ensure DOT, OSHA, and company safety regulations are followed.
• Lead maintenance technicians, schedule workflow, and set performance expectations.
• Train staff on new technologies, diagnostic tools, and OEM platforms.
• Foster a safety-first, collaborative, and continuous improvement culture.
• Collaborate with operations to minimize downtime and maximize asset lifecycle.

Skills

Fleet maintenance

Supervisory experience

Diagnostics

Communication

Organizational skills

DOT/FMCSA regulations

Safety leadership

Education

Diesel technology degree/certification

Tools

Maintenance management software

Telematics systems

Diagnostic tools

Job description

JOB SUMMARY:

The Oregon Maintenance Supervisor (OMS) is responsible for overseeing, planning, and coordinating all maintenance activities related to company-owned trucks, trailers, and shop equipment. This role assists in ensuring that all fleet assets are safe, compliant, reliable, and maintained in accordance with company standards and DOT regulations. The OMS will lead the Oregon maintenance team, manage vendor relationships, control costs, have oversight of preventive and predictive maintenance programs, effective use of technology-based fleet management systems, and collaborate with operations to minimize downtime and maximize asset lifecycle.

KEY RESPONSIBILITIES:

Fleet Maintenance & Compliance

• Manage Oregon preventive maintenance (PM) schedules, inspections, and repairs for all tractors, trailers, and related equipment.
• Ensure all vehicles comply with DOT, OSHA, and company safety regulations.
• Track maintenance records, warranties, recalls, and compliance documentation.

Leadership & Team Management

• Supervise and develop maintenance technicians, scheduling workflow and setting performance expectations under the direction of the Corporate Maintenance Manager.
• Provide training related to new technologies, diagnostic tools, and OEM digital platforms.
• Foster a safety-first, collaborative, and continuous improvement culture.

Technology & Data Management

• Ensure all work orders, PM schedules, repair histories, inspections, and parts usage are accurately recorded in the system.
• Leverage telematics, ELD, and diagnostic data for proactive and predictive maintenance scheduling.
• Responsible for managing Oregons data-driven maintenance reports and KPI dashboards (e.g., cost per mile, downtime, PM compliance rate).

Budgeting & Cost Control

• Monitor inventory levels and approve parts orders while minimizing waste.

Tire Program Management

• Manage Oregon tire inventory levels and ensure accurate tracking of casings and tread life.
• Oversee service companies, verify billed hours and rates, and ensure performance aligns with expectations.
• Maintain and monitor steer-tire standards.
• Oversee the seasonal tire changeover program as needed in Oregon.

Oil Analysis Program Management

• Maintain oil analysis sample kit inventory and replenish as required.
• Follow up to ensure completion of recommended repairs and subsequent verification samples.

Operational Support

• Collaborate with dispatch and operations to schedule maintenance without affecting delivery timelines.
• Provide timely updates on equipment status, repair ETAs, and fleet availability.
• Coordinate responding to breakdowns, emergencies, and roadside assistance situations.

Qualifications

QUALIFICATIONS:

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