Fleet Maintenance Diesel Specialist

Ready to keep an innovative student transportation fleet moving?

At Zm, we’ve reimagined the nation’s largest mass transit system—student transportation—through an end-to-end, cloud-based platform. With an electric vehicle–first approach and a multi-sized fleet, we cut commute times by up to 20% while improving safety and transparency for families, drivers, schools, and districts. Since 2015, we’ve logged 8+ million miles delivering reliable, efficient, and sustainable service.

What you’ll tackle

• Troubleshoot and repair: steering, electrical, cooling, lubrication, braking, drivetrains, suspensions, power steering units, clutches, and transmissions.
• Adjust, test, and rebuild engines; service oil, temperature, and fuel regulation assemblies.
• Operate within your certification level while following all relevant federal, state, and local regulations.
• Test-drive vehicles to verify successful repairs.
• Arrange and obtain inspections/approvals before major repair releases.
• Keep the shop safe, clean, and efficient; ensure compliance with federal, state/provincial, and local standards.
• Record labor hours, parts usage, and all work performed on required documentation.
• Handle road calls and complete on-the-road fixes.
• Flag additional repair needs and refer work needing higher-level technician qualifications.
• Inform the Lead Technician of unsafe maintenance conditions, practices, or vehicle abuse.

Is this you?

• 2–4 years of medium/heavy truck fleet mechanic experience.
• Expertise in diagnostics, electrical systems, and A/C.
• Comprehensive knowledge of core vehicle systems and diesel equipment.
• Hands-on fleet background across diesel and gasoline platforms.
• Own the recommended minimum hand tools for diesel technicians.
• Strong judgment and decision-making ability.
• Valid state driver’s license (CDL preferred).
• ASE certification desired but not required.

Why Zm

Join a mission-driven team that’s modernizing school transportation with real-time tech, a diverse fleet, and a sustainability focus.