Commercial Vehicle Diesel Systems Mechanic

Build safer rides for students—one precise repair at a time

Imagine a platform where every parent, driver, and school can see—live—what’s happening on the route. That’s Zm: an end-to-end, cloud-powered system paired with a multi-sized, EV-first fleet that trims student commute times by up to 20%. With more than 8 million miles completed, we’re setting a new standard for safe, reliable, efficient, and sustainable transportation.

Your impact

From the shop floor to roadside assistance, you’ll ensure our fleet operates at peak performance and stays compliant.

• Pinpoint malfunctions and execute repairs on steering, electrical, cooling, lubrication, braking, drivetrain, suspension, power steering units, clutches, and transmissions.
• Adjust, test, and where necessary rebuild engines; service oil, temperature, and fuel control components.
• Work within your qualification level while complying with all applicable federal, state, and local regulations.
• Validate fixes with thorough test drives.
• Coordinate mandatory inspections and obtain approvals for major repairs before vehicle release.
• Keep a clean, safe, and efficient work area that meets federal, state/provincial, and local requirements.
• Accurately log time, parts, and maintenance/repair details on designated forms.
• Respond to road calls and complete on-the-road repairs as assigned.
• Identify additional service needs and elevate items requiring higher-level technician qualifications.
• Notify the Lead Technician of any unsafe maintenance conditions, practices, or suspected vehicle abuse.

What sets you up for success

• 2–4 years’ experience maintaining medium/heavy truck fleets.
• Proven diagnostic prowess, plus electrical and A/C expertise.
• Solid command of core vehicle systems and diesel platforms.
• Experience across fleet diesel and gasoline systems.
• Ownership of recommended minimum diesel technician hand tools.
• Clear-headed judgment and confident decision-making.
• Valid state driver’s license; CDL preferred.
• ASE certification preferred but not required.