Senior Diesel Technician​/Mechanic

Blue Bear Waste Services is seeking an experienced Senior Diesel Technician/Mechanic in Phoenix, Arizona to help us deliver outstanding service!

Blue Bear Waste Services provides comprehensive waste management and recycling solutions for residential, commercial, and construction projects. From roll-off dumpster rentals to sustainable disposal practices, we deliver reliable services that keep communities clean and projects moving. More than a waste management company, we’re a team committed to safety, integrity, and exceptional service. Our employees are the heart of our success, and we foster a culture where hard work is recognized, growth is encouraged, and collaboration drives results.

The Senior Diesel Technician/Mechanic ensures the safe, efficient, and timely maintenance and repair of Blue Bear Waste Services’fleet of trucks, equipment, and containers. This position reports to the Operations Supervisor and works closely with the company’s team of drivers and the Denver Shop Foreman. The ideal candidate will have technical knowledge of all truck systems, be self-directed and proactive, bring a high level of energy, and share the company’s high standards for quality and safety.

The Senior Diesel Technician/Mechanic is responsible for tracking and completing scheduled preventative maintenance efficiently to minimize equipment downtime, diagnosing issues across all major vehicle systems, and performing all repairsina safe, cost-effective, and expeditious mannerto support reliable waste hauling operations.

• Perform skilled and complicated mechanical work on heavy-duty truck equipment and related components with minimum supervision.
• Troubleshoot major mechanical, hydraulic, and electrical problems to identify underlying causes and determine necessary repairs.
• Track and complete scheduled preventive maintenance on all fleet vehicles in accordance with manufacturer recommendations to minimize equipment downtime.
• Maintain accurate maintenance and repair records for all vehicles and equipment in Company systems (currently Fleetio).
• Conduct routine inspections of major vehicle systems, including annual DOT inspections.
• Coordinate and collaborate with other company mechanics to ensure efficient workflow.
• Provide technical guidance to and train Apprentice Technicians.
• Manage parts inventory, vendor relationships, and recommend new vendors as appropriate.
• Utilize the company’s Purchase Order (PO) system (currently ) to purchase parts, schedule external repairs, and approve vehicle-related invoices.
• Maintain accurate inventory counts and participate in quarterly inventory reviews.
• Provide emergency roadside services, minor field repairs, and assist with vehicle recovery as needed.
• Perform final operational tests on all repaired equipment to ensure readiness.
• Use and handle company tools, power equipment, and diagnostic tools safely and properly.
• Maintain a neat and orderly working area.
• Follow industry best-practice regulations and safety standards for repair shop operations.
• Assist with general facility maintenance.
• Report equipment abuse or neglect by driver team members to management.
• Collaborate with management on future equipment purchases and recommend improvements to the company's maintenance and repair program.
• Participate in training to stay abreast of new technology.
• Perform other related duties as assigned by supervisor.

• Minimum 5 years of diesel mechanic experience required; waste industry experience preferred.
• High school diploma or equivalent; technical training preferred.
• Strong diagnostic skills across mechanical, hydraulic, and electrical systems.
• Requires a minimum of one automotive specialization (e.g. engines,…