Heavy Equipment Mechanic / Diesel Technician

Joseph J Magnolia Inc. is seeking a skilled and reliable Heavy Equipment Mechanic to join our team. In this role, you will be responsible for the inspection, preventative maintenance, troubleshooting, and repair of a diverse fleet of heavy machinery and diesel equipment. Whether working in our shop or responding to field service calls, you will ensure our fleet operates safely, efficiently, and with minimal downtime. If you are an analytical problem solver who prides yourself on quality workmanship, we want to hear from you! 

Responsibilities

• Diagnostics & Troubleshooting: Utilize advanced computerized diagnostic tools and traditional methods to pinpoint mechanical, electrical, computer, and hydraulic system failures.
• Maintenance & Repair: Perform routine preventative maintenance (oil changes, fluid flushes, filter replacements) and complex overhauls on diesel engines, drivetrains, air brakes, and steering mechanisms.
• System Service: Diagnose and repair chassis electrical components, hydraulic systems, cooling setups, and multi-axle alignments.
• Field & Shop Operations: Respond to field service calls at various job sites or execute repairs inside the main facility.
• Welding & Fabrication: Perform intermediate structural welding and component fabrication as needed to safely repair machinery.
• Documentation: Maintain accurate, timely digital logs of all repairs, parts ordered, maintenance schedules, and labor hours using a company tablet.
• Safety First: Adhere strictly to OSHA standards and all internal safety regulations, maintaining a clean, hazard-free workspace.

• Minimum of 3–5 years of hands-on experience maintaining and repairing heavy construction equipment, diesel engines, or similar machinery.
• Strong knowledge of diesel engines, hydraulic systems, electrical systems, drivetrains, and mechanical components.
• Experience diagnosing and repairing equipment using computerized diagnostic tools and  standard testing equipment.
• Ability to independently troubleshoot equipment failures and perform repairs in  both shop and field environments.
• Experience performing preventive maintenance and maintaining accurate service and repair records.
• Working knowledge of welding and fabrication techniques used in equipment repairs.
• Ability to read and interpret equipment service manuals, schematics, and technical diagrams.
• Valid driver's license and ability to travel to job sites throughout Washington, DC, Maryland, and Virginia.
• Ability to safely perform the physical duties of the position, with or without reasonable accommodation.
• Strong organizational skills, attention to safety, and ability to prioritize repairs to minimize equipment downtime.

Preferred Qualifications

• Experience servicing John Deere or other heavy construction equipment.
• Technical training or certification in diesel technology, heavy equipment maintenance, or a related field.
• Experience working with construction fleets and responding to emergency field service calls.

 Benefits & Culture

• Steady, year-round work throughout the DC Metropolitan area. 
• Company-paid life insurance and long-term disability. 
• Health, Dental, and Vision Insurance. 
• Company contributions to 401(k). 
• Employee Assistance Program (EAP). 
• Company-paid Basic Life Insurance Policy. 
• Paid Time Off. 
• 7 Paid Holidays.