Senior Diesel & Heavy Equipment Mechanics Security Clearance

Position

Senior Diesel & Heavy Equipment Mechanic – Full‑time – Fallon, NV – Travel: 10%

The Senior Diesel & Heavy Equipment Mechanic serves as a master mechanic responsible for diagnosing, repairing, and overseeing complex maintenance actions across NSW diesel, heavy equipment, and tactical vehicle fleets. This role performs the most technically demanding repairs and provides expert guidance and oversight to less experienced mechanics within the shop, ensuring maintenance actions meet OEM, NAVFAC, and NSW standards while supporting high equipment availability and operational readiness.

• Perform advanced diagnostics and repairs on diesel and heavy equipment platforms.
• Repair and troubleshoot engines, drive trains, suspension, braking, and hydraulic systems.
• Provide expert technical input on complex maintenance issues.
• Oversee and mentor junior and midlevel mechanics.
• Ensure maintenance quality and compliance with OEM and NAVFAC standards.
• Support inspections, audits, and readiness assessments.
• Operate Government vehicles during testing and repair activities.
• Document all labor, parts, and repairs in Fleet Focus.

• U.S. citizenship and the ability to obtain and maintain a Secret clearance.
• Valid U.S. driver’s license (CDL preferred).
• Minimum 6 years as an OEM, commercial fleet, or military diesel/heavy equipment mechanic (or equivalent military experience).
• Experience maintaining diesel engines over 400 HP and CESE platforms.
• Proficiency using Asset Works Fleet Focus and ability to repair all tactical, expeditionary, and nontactical equipment in the shop.
• ASE Master Mechanic certification in Medium Heavy Trucks or Military Tactical Wheeled Vehicles (may be waived with 5 years as a depot‑level shop lead mechanic or supervisor).
• Strong verbal and written communication skills.
• Compliance with hazardous material, safety, facility access, and drug‑free workforce requirements.
• Ability to lift up to 75 pounds and work in motor pool, shop, and field environments; exposure to noise, fuels, lubricants, exhaust, weather, and rugged terrain.

While performing the duties of this position, the employee is regularly required to talk, listen, write, use foot/ankle motions, and handle or feel objects, tools, or controls. The employee must stand, walk, sit, reach with hands and arms, and occasionally lift or move up to 25 pounds. Vision and hearing requirements include close and distance vision and the ability to adjust focus.

The noise level in the work environment is usually moderate. Reasonable accommodation may be made (if possible) to enable individuals with disabilities to perform the functions.

Seventh Dimension, LLC is a Veteran friendly employer and provides equal employment opportunity (EEO) to all employees and applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability status, genetic information, marital status, ancestry, protected veteran status, or any other characteristic protected by applicable federal, state, and local laws.