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Be ready to walk through a diesel failure diagnosis, a major component swap, and how you verify manufacturer specs after repair. Ask how Clean Harbors structures shop vs. field work, fleet mix, and safety expectations for industrial/waste-service equipment.
Strong fit if you prefer hands-on heavy diesel work in an industrial-services environment over remote desk work, and you are comfortable with diagnostic troubleshooting and rigorous safety discipline around commercial waste and plant support fleets.
As a Heavy Duty Diesel Mechanic supporting Clean Harbors field and industrial fleets, a typical day centers on diagnosing diesel equipment, repairing or replacing worn parts, and verifying work against manuals and specs. You may dismantle and reassemble heavy gear with hoists and hand tools, run post-repair tests, and keep service vehicles and plant-support equipment ready for waste and industrial operations.
Build depth in diesel diagnostics, hydraulic/powertrain repair, OEM manuals and prints, and safe hoist/hand-tool rebuilds. Practice post-repair testing and inspection routines used on heavy equipment. No certification cost list was provided for this posting.
It is a major U.S./Canada waste and industrial services provider focused on hazardous (and non-hazardous) waste handling and disposal.
No—the listing is on-site in the Upland, California area for heavy equipment mechanic work.
Repair/replace parts, diagnose heavy equipment, use manuals and tools for overhauls, and test systems after service per manufacturer specs.
Public-domain labor data — prepare examples for 2–3 of these.
Website: cleanharbors.com
Clean Harbors, Inc., headquartered in Norwell, Massachusetts, is a provider of waste management and industrial services for commercial customers, specializing in the collection, transportation, treatment and disposal of hazardous waste, but also offering services for non-hazardous waste. The company has 870 operating locations in 630 properties in the U.S. and Canada including a network of over 100 waste disposal facilities such as incinerators, landfills, treatment, storage and disposal facilities. It also owns Safety-Kleen, the largest re-refiner and recycler of used oil …
Public cache only — not an employee review.
Join Clean Harbors as a Heavy Duty Diesel Mechanic in Upland, Delaware County, and become part of a team that prioritizes safety and operational excellence in fleet maintenance. We're seeking an experienced mechanic to keep our commercial diesel vehicles running safely and efficiently. About the Role As a Heavy Duty Diesel Mechanic with Clean Harbors, you'll perform critical repairs and preventative maintenance on our commercial fleet. This is a full-time position offering a competitive hourly wage of $27 to $37 per hour, based on your experience and qualifications. After your first 90 days, you'll have the opportunity to discuss your performance and potential wage progression. What You'll Do Diagnose and repair diesel engines, transmissions, and drivetrain components Perform scheduled preventative maintenance to extend vehicle life and minimize downtime Inspect vehicles for safety compliance and mechanical integrity Document all maintenance and repair work accurately Identify parts failures and recommend timely replacements Maintain a clean and organized work environment What We're Looking For Proven experience as a Heavy Duty Diesel Mechanic or Heavy Equipment Mechanic Strong knowledge of diesel engine operation and repair Ability to diagnose mechanical problems using standard tools and test equipment Commitment to safety standards and best practices High school diploma or equivalent preferred Valid driver's license About Clean Harbors Clean Harbors operates a fleet of commercial vehicles dedicated to environmental and safety services across the region. We value team members who share our commitment to maintaining the highest standards of safety and service quality. How to Apply If you're ready to join our team as a Heavy Duty Diesel Mechanic in Upland, Delaware County, apply through this listing to be considered.
Generated for personal interview prep · 2026-07-17 UTC · getajob.ai