Diesel Mechanic

Harmon Scrap Metal•Cornersville, TN

7d•Onsite

About The Position

Harmon Scrap Metal is seeking a certified Diesel Mechanic to diagnose, repair, and maintain the heavy equipment and diesel trucks used in its recycling operations across Tennessee and Alabama. The role works on heavy equipment, diesel semi trucks, roll-off trucks, and trailers, with the goal of keeping equipment safe and reliable. The mechanic is expected to work independently within their qualifications, communicate clearly with the team, and take responsibility for dependable, high-quality repairs. This hands-on position is based in a shop and active scrap yard. Work may include outdoor conditions, noise, dust, grease, climbing equipment, bending, kneeling, and handling tools and components with appropriate lifting equipment or assistance. Required personal protective equipment must be worn, and essential duties must be performed with or without reasonable accommodation. Travel between Harmon locations or field service work may be assigned. Scrap-metal sorting and processing uses permanent magnets and electromagnets that may interfere with electronic medical devices such as cardiac pacemakers and defibrillators.

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 their 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 arms overhead, and twist and turn at the neck and trunk.
Ability to continually handle and grasp levers and dials, with continuous leg and foot motion when using pedals.
Ability to perform essential duties with or without reasonable accommodation.

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.
A 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.