Medium​/Heavy-Duty Fleet Diagnostics Specialist

Join Our Maintenance Team

Help Zūm deliver safe, reliable transportation by elevating the health and uptime of our fleet. As a Medium/Heavy-Duty Fleet Diagnostics Specialist, you’ll be the go-to for troubleshooting, quality repairs, and preventive maintenance.

• Pinpoint faults and repair: steering, electrical, cooling, lubrication, braking, drive trains, suspensions, power steering units, clutches, transmissions, and oil/temperature/gas regulating components—within your qualification level and in compliance with all relevant Federal, State/Provincial, and local regulations.
• Back up teammates by assisting Tech I’s on engine, transmission, and differential rebuilds as assigned by the manager.
• Drive vehicles pre‑ and post‑service to validate concerns and confirm successful repairs; integrate test drives into PM inspections.
• Secure required inspections and approvals for major repairs prior to vehicle release.
• Flag any additional needed work, including items for higher‑qualification technicians.
• Document time, parts, and work performed on the appropriate forms.
• Handle road calls and perform on‑the‑road fixes as needed.
• Maintain a clean, safe, and efficient work area that meets company housekeeping standards and regulatory requirements.
• Alert the Lead Technician about unsafe conditions or vehicle abuse.
• Work assigned shift; overtime as needed (AM/PM).

• A developing technician who enjoys variety and takes pride in safe, high‑quality work.
• Comfortable with modern diagnostic tools; confident in complex electrical and A/C repairs.
• Organized, thorough with documentation, and eager to learn from senior techs.

• 2–4 years of medium/heavy truck fleet mechanic repair experience.
• Diagnostic, Electrical, and A/C expertise.
• Hands‑on knowledge of major vehicle systems and diesel equipment.
• Fleet experience with diesel and gasoline systems.
• Recommended minimum hand tools for Medium/Heavy‑Duty Diesel Technicians.
• Strong judgment and decision‑making.
• Proficiency:
  Diesel Engine Systems.

• Valid CDL License (or ability to obtain within 90 days of employment).
• ASE certifications in brakes, suspension, engine, electrical, A/C—or Master School Bus/Truck Technician.

Every safe, on‑time route we run supports students and communities. Your craftsmanship directly impacts reliability, safety, and service quality across the fleet.

Zūm Services, Inc. and all its subsidiaries provide equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.