Diesel Mechanic

Harmon Scrap Metal LLC•Cornersville, TN

8d•Onsite

About The Position

Harmon Scrap Metal is seeking a certified mechanic to diagnose, repair, and maintain the heavy equipment and diesel trucks used in its recycling operations in Tennessee and Alabama. The role requires hands-on experience with heavy equipment and diesel semi trucks, dependable repair work, independent problem-solving, and clear communication with the team. This is a hands-on position in a shop and active scrap yard. Work may involve outdoor conditions, noise, dust, grease, climbing equipment, bending, kneeling, and handling tools and components using appropriate lifting equipment or assistance. Required personal protective equipment must be worn. Travel between Harmon locations or field service work may be assigned. Candidates must be able to perform the essential duties with or without reasonable accommodation. Harmon Scrap Metal’s mission is to empower people to recycle the past to impact the future. Its core values are Safety, Alignment, Accountability, Adaptability, Trust, and Discipline.

Requirements

Current mechanic certification relevant to diesel trucks or heavy equipment, such as applicable ASE certification or a recognized equipment or engine manufacturer technician certification.
Working knowledge of diesel engines, hydraulics, electrical circuits, and mechanical repair procedures.
Ability to troubleshoot systematically and complete repairs independently within the candidate’s qualifications.
Ability to use diagnostic tools and read technical service information.
Clear communication, dependable attendance, and accountability for the quality of work.
Valid driver’s license and ability to meet company driving requirements when operating company vehicles.
Ability to stand and walk for extended periods on uneven surfaces.
Ability to lift, push, or pull a minimum of 50 pounds.
Ability to frequently climb ladders, crouch, bend at the knee, stoop or bend at the waist, reach overhead, and twist or turn the neck and trunk.
Ability to continually handle and grasp levers and dials, with continuous leg and foot motion when using pedals.
Ability to work with frequent and/or regular exposure to extreme temperatures, toxic chemicals, biohazardous materials, dirt, dust, fumes, smoke, and/or loud noises.

Nice To Haves

Three or more years of hands-on diagnostic and repair experience.
Experience working on both heavy equipment and diesel semi trucks.
Familiarity with material handlers, loaders, forklifts, roll-off systems, trailers, and air brakes.
Experience with manufacturer-specific diagnostic software.
Welding and fabrication skills.
Commercial driver’s license.

Responsibilities

Diagnose and repair heavy equipment, diesel semi trucks, roll-off trucks, and trailers.
Troubleshoot diesel engines, hydraulic and electrical systems, transmissions, drivetrains, brakes, steering, and suspension.
Use diagnostic software, scan tools, service manuals, wiring diagrams, and hydraulic schematics to identify problems and determine repairs.
Diagnose and service diesel emissions and after-treatment systems.
Complete preventive maintenance based on mileage, operating hours, inspection findings, and manufacturer recommendations.
Respond to breakdowns and communicate repair needs, parts requirements, and expected downtime.
Inspect and test completed repairs before returning equipment to service.
Maintain accurate work orders documenting diagnosis, repairs, labor, parts, and follow-up needs.
Work with drivers, operators, and managers to address recurring issues and reduce avoidable downtime.
Keep the work area organized and follow safe procedures for lifting, blocking, and controlling hazardous energy.