Heavy-Duty Diesel Powertrain Mechanic
Zum
San Francisco, CA, USA
USD 45-50 / hour + Equity
Posted on Apr 3, 2026
Are You the Go-To Tech for Tough Diesel Problems?
Why Zūm
The targeted base salary range for this role is listed in the compensation section below. Actual compensation depends on location, skills, and experience. This position may also include bonus, equity, or commissions. Full-time employees receive Medical, Dental, Vision, 401(k), Holidays, Wellness, Vacation, and more. The targeted pay range for this role is up to $45–50/hr.
EEO Statement
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.
- Can you isolate a parasitic draw or an intermittent A/C fault quickly?
- Do you know your way around power steering units, clutches, and transmissions?
- Will you take a bus on a test loop to validate a drivability repair—and document it precisely?
Why Zūm
- Backed by Sequoia Capital, SoftBank, Spark Capital, and GIC (Series E).
- Operating in 15+ states; flagship hubs in San Francisco, Los Angeles, and Seattle; expanding across the East Coast and Midwest.
- Modernizing district transportation with tech, launching a charter platform, and developing proprietary SaaS.
- Electrifying school fleets and supporting the grid through vehicle-to-grid initiatives.
- Recognized by CNBC Disruptor 50, Financial Times 500, and Fast Company World Changing Ideas.
- Diagnose and repair systems: steering, electrical, cooling/lubrication, brakes, drivelines/suspensions, power steering, clutches, transmissions, regulators (oil/temp/fuel), plus engine adjustments and rebuilds aligned to your qualification level and to all Federal, State/Provincial, and local rules.
- Test-drive to verify customer concern resolution.
- Obtain mandatory inspections/approvals on major work before release.
- Maintain a safe, clean, efficient bay in full regulatory compliance.
- Escalate additional repairs discovered (including those requiring higher certifications).
- Record labor, parts, and services accurately in required forms/systems.
- Respond to road calls and complete on-site fixes as needed.
- Alert the Lead Technician to unsafe practices/conditions or vehicle abuse.
- 2–4 years in medium/heavy truck or fleet repair.
- Proven diagnostics, electrical troubleshooting, and A/C expertise.
- Strong foundation across major vehicle systems and diesel platforms; experience with gasoline systems.
- Background in fleet operations.
- Owns the recommended Diesel Technician hand tools.
- Reliable judgment and decision-making.
- Valid state driver’s license (CDL preferred).
- ASE certification desirable, not required.
The targeted base salary range for this role is listed in the compensation section below. Actual compensation depends on location, skills, and experience. This position may also include bonus, equity, or commissions. Full-time employees receive Medical, Dental, Vision, 401(k), Holidays, Wellness, Vacation, and more. The targeted pay range for this role is up to $45–50/hr.
EEO Statement
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.