Commercial Diesel Systems Technician -- Level III

Job Description

Job Description

Commercial Diesel Systems Technician — Level III

Department: Maintenance

Reports to: Manager – Murray Maintenance

FLSA Status: Hourly

Keep freight moving

Our fleet keeps commerce in motion. As a Level III Technician, you’ll be the go-to problem solver—executing FMCSA-compliant preventive inspections, tackling unexpected breakdowns on tractors and trailers, and performing minor body work to return units to service quickly. You’ll document every task precisely, assign parts to the right asset, maintain a clean bay, and occasionally guide Level 1 techs—all while following established practices that put safety and quality first.

Your impact

• Conduct routine preventive maintenance and inspections in alignment with FMCSA guidelines.
• Diagnose and repair unscheduled issues on trucks and trailers with limited supervision.
• Accurately record work on work orders and inspection forms; ensure correct parts allocation by unit.
• Uphold housekeeping standards in assigned work areas.
• Perform additional duties as directed by management.

Experience & qualifications

To perform this job successfully, an individual must be abel to perform each essential duty satisfactorily. The requirements listed below are representative of the knowledge, skill, and/or ability required. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

• High school diploma or GED required; vocational training preferred; CDL preparation is advantageous.
• 2–4 years of commercial tractor/trailer maintenance experience (minimum 2 years) in a garage or fleet leasing setting.
• Diesel Mechanics degree preferred.
• Demonstrated computer proficiency; strong written and verbal communication; excellent organization; advanced troubleshooting ability.
• Proven ability to perform under pressure and manage multiple priorities.

Supervisory Responsibilities: This job has no supervisory responsibilities.

How you operate

The power to perform an observable activity at the present time. This means that abilities have been evident through activities or behaviors that are similar to those required on the job, e.g., ability to plan and organize work. Abilities are different from aptitudes. Aptitudes are only the potential for performing the activity.

• Planning: plan, organize, and prioritize effectively.
• Data & Research: gather facts and clearly communicate findings.
• Interpersonal Communication: write and speak with clarity.
• Problem Sensitivity: anticipate and identify issues early.
• Multi-tasking: shift seamlessly between multiple activities.
• Relator: build durable relationships across personality types.

Performance DNA

• Service & Sensitivity: Consider others’ needs; respond to drivers and customers.
• Listening: Make the effort to hear and extract key information.
• Oral & Written Communication: Convey ideas effectively; write with clarity and correctness.
• Planning & Organization: Set direction, prioritize, and complete work on time.
• Judgment: Make logical, fact-based decisions aligned with mission and resources.
• Stress Tolerance: Stay steady under pressure or opposition.
• Team Player: Align with corporate goals; collaborate, listen, respect, and share.

Physical demands

**The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

• Regular: standing, walking, handling, reaching, stooping, kneeling, crouching, crawling, talking/hearing.
• Frequent: sitting, climbing, balancing.
• Occasional: smelling.
• Lifting: regularly up to 100 lbs; frequently more than 100 lbs.
• Vision: close, distance, color, peripheral, depth perception.

Work environment

**The work environment characteristics described here are representative of those an employee encounters while performing the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

• Regular exposure to wet/humid conditions, moving mechanical parts, and high/precarious places.
• Frequent exposure to fumes/airborne particles, outside weather, extreme cold/heat, and vibration.
• Occasional exposure to toxic or caustic chemicals.
• Very loud noise levels at times.

Technical toolkit

• Creating Preventive Maintenance Plans
• Electrical Troubleshooting
• Diesel & Heavy Equipment Systems
• Electrical Systems & Diagnostics (Heavy Equipment)
• Equipment Diagnostics & Troubleshooting
• DOT & Equipment Inspection Compliance
• Equipment Installation & Wiring
• Equipment Repair & Maintenance
• Equipment Installation