Heavy Equipment Mechanic_Construction and Qua

Haynes Materials Company•Southbury, CT

16d•$35 - $50•Hybrid

About The Position

Haynes Materials is seeking an experienced and reliable Heavy Equipment Mechanic to join our team in the construction and quarry industry. The ideal candidate will be responsible for maintaining, troubleshooting, and repairing various heavy equipment used in construction and quarry operations, ensuring optimal performance and minimizing downtime. This role requires a deep understanding of mechanical systems, attention to detail, and the ability to work in a fast-paced, physically demanding environment. Under the general direction of the Garage Manager, the Diesel Truck Mechanic inspects, diagnoses, maintains, repairs, and rebuilds the company’s fleet of on-road equipment, including tri-axle dump trucks, tractor-trailers, and related support vehicles. Working closely with the full mechanic team, this position keeps the fleet safe, DOT-compliant, and ready to run, minimizing downtime for our operations. The ideal candidate is a reliable, safety-minded professional who takes pride in quality workmanship, communicates clearly, and works well both independently and as part of a team.

Requirements

High school diploma or equivalent.
Five or more years of experience as a diesel mechanic, with a focus on on-road heavy trucks such as tri-axles and tractor-trailers.
Working knowledge of diesel engines, hydraulics, pumps, transmissions, electrical, and air brake systems.
Proficiency with diagnostic software, scan tools, and electrical testing equipment.
Valid driver’s license and an acceptable driving record.
Ability to read and interpret service manuals, wiring diagrams, and technical documentation.

Nice To Haves

Class A Commercial Driver’s License (CDL).
Welding and fabrication experience (MIG, stick, and/or torch).
Qualified to perform FMCSA/DOT annual vehicle inspections.
Experience in construction, aggregate, or materials hauling fleets.

Responsibilities

Identify, diagnose, and repair mechanical, electrical, hydraulic, and safety-related issues on on-road trucks and their working systems.
Service and repair diesel engines, fuel systems, aftertreatment/emissions systems (DPF, DEF/SCR, EGR), cooling systems, and air intake systems.
Repair and rebuild transmissions, clutches, drivelines, differentials, and axles.
Troubleshoot and repair air brake systems, ABS, suspensions, steering, wheel ends, and tires.
Diagnose and repair hydraulic systems, pumps, cylinders, PTOs, and dump bodies.
Troubleshoot 12/24-volt electrical systems, wiring, lighting, charging, and starting systems using schematics and meters.
Use OEM and aftermarket diagnostic software and scan tools to read fault codes, perform tests, and verify repairs.
Perform scheduled preventive maintenance services, including oil and filter changes, lubrication, fluid analysis, and component inspections.
Conduct thorough vehicle inspections and support DOT annual inspection requirements.
Address driver vehicle inspection report (DVIR) defects promptly and confirm vehicles are safe to return to service.
Recommend repairs and identify recurring problems to reduce breakdowns and extend equipment life.
Complete detailed work orders and daily work sheets documenting labor, parts used, completed repairs, and needed repairs.
Communicate parts needs to the Garage Manager and help maintain accurate parts and repair records.
Follow all company policies and applicable federal and state safety and environmental regulations, including proper handling and disposal of fluids and hazardous materials.
Work primarily in our garage facility and perform offsite and roadside equipment repairs as needed.
Follow safe work practices at all times, including lockout/tagout, proper lifting and jacking procedures, and correct use of PPE.
Keep tools, equipment, work bays, and service vehicles clean, organized, and in good working order.
Support fellow team members in troubleshooting different types of equipment and determining the best resolution.
Display a professional appearance and a reliable, responsible, positive, and collaborative attitude.
Perform other related duties as assigned by the Garage Manager.