Maintenance Supervisor

Peninsula-Truck-Lines,-Inc.-1; Portland (OR); On-site; USD 90,000 - 130,000; Full time

Job summary

Peninsula-Truck-Lines,-Inc.-1 in Oregon is seeking an experienced Maintenance Supervisor to oversee all fleet maintenance for tractors, trailers, and shop equipment. You will plan schedules, manage vendors, and ensure DOT compliance while leading a dedicated maintenance team.

You will drive data-based maintenance using telematics and PM programs, track costs per mile, and work with operations to minimize downtime and maximize asset lifespan.

Qualifications

• 7+ years of diesel/heavy truck or fleet maintenance experience.
• 5+ years in supervisory or management roles.
• Knowledge of DOT/FMCSA regulations and documentation.
• Proficient with maintenance management software.
• Excellent communication and leadership skills.
• Technical certification or degree in diesel technology or related field.
• CDL license is a plus.

Responsibilities

• Oversee preventive maintenance schedules and repairs for tractors and trailers.
• Ensure DOT, OSHA and company safety compliance.
• Lead maintenance team, schedule work and set performance expectations.
• Track records, warranties, recalls and compliance documentation.
• Leverage telematics and diagnostics for proactive maintenance.
• Manage budgets, inventory and parts usage to minimize waste.
• Coordinate with operations to minimize downtime and maximize asset lifecycle.

Skills

Fleet maintenance

Team supervision

Diagnostics knowledge

DOT/FMCSA compliance

Maintenance software

Communication

Problem solving

Education

Diesel technology certification/degree

Tools

Maintenance management software

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 & ComplianceManage 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 ManagementSupervise 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 ManagementEnsure 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 Oregon’s data-driven maintenance reports and KPI dashboards (e.g., cost per mile, downtime, PM compliance rate).Budgeting & Cost ControlMonitor inventory levels and approve parts orders while minimizing waste.Tire Program ManagementManage 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 ManagementMaintain oil analysis sample kit inventory and replenish as required.Follow up to ensure completion of recommended repairs and subsequent verification samples.Operational SupportCollaborate 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: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.