Transit Fleet Maintenance Mechanic (Diesel/Gasoline)

Zum

Zum

Seattle, WA, USA

Posted on May 19, 2026
Do you thrive on cracking tough diagnostics, validating your repairs on a test drive, and knowing a bus is safe because of your work? At Zūm, you’ll do exactly that—while helping modernize how students get to school. We’re a Series E, tech-driven company operating in more than 15 states, with major hubs in San Francisco, Los Angeles, and Seattle and active expansion across the East Coast and Midwest. We power school district transportation operations, a fast-growing charter platform, and proprietary SaaS, and we’re electrifying fleets nationwide to support local utilities and the grid. Our impact has been recognized by CNBC 50 disruptor, Financial Times 500 fastest growing companies, and Fast Company World Changing Ideas.

A day in this role

  • Start with a digital worklist, then dive into diagnosing and repairing heavy vehicles—covering steering, electrical, cooling, lubrication, brakes, drivetrains, suspensions, power steering units, clutches, transmissions, fuel/temperature/pressure controls, and engine adjustments or rebuilds.
  • Confirm the fix with a thorough test drive.
  • For major work, arrange inspections and obtain approvals before releasing any vehicle.
  • Keep your bay spotless, safe, and compliant with federal, state, and local regulations.
  • Note any additional maintenance opportunities, including work requiring a higher-certified tech.
  • Log your time, parts, and repair actions with precision.
  • Tackle road calls and complete on-the-road repairs when dispatched.
  • Immediately notify the Lead Technician about unsafe practices, conditions, or vehicle abuse.

What makes you successful

  • 4–5 years maintaining and repairing medium/heavy truck fleets.
  • Expert-level diagnostics with strong electrical and A/C capabilities.
  • In-depth knowledge of major systems and diesel equipment.
  • Comfort working across diesel and gasoline platforms in a fleet setting.
  • Own the recommended minimum hand tools for a Diesel Technician.
  • Clear judgment and confident decision-making.
  • Valid state driver’s license (CDL preferred).
  • ASEs are welcome but not required.

Proficiencies you’ll apply

  • Mechanical troubleshooting skills
  • Maintenance and repair skills
  • Diesel & heavy equipment systems
  • DOT & equipment inspection compliance

Equal Employment Opportunity

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.
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