Field Service Mechanic – Utility Trucks & Equipment

Custom Truck One Source • Williston, North Dakota • Posted June 10, 2026

About the Role

Custom Truck One Source “CTOS” 5065 140th Ave., Williston, ND 58801

  • CTOS provides Utility Truck with a 6-ton crane, welder, air compressor & specialty tools.

    • Rebuilding America Starts Here:

    True to our name, Custom Truck One Source “CTOS” designs, assembles, sells, and rents, services trucks, cranes, and other heavy equipment. Our clients include some of the largest utilities, telecom, construction, forestry, oil, and rail companies in the nation.

    Field Service Technicians / Mechanic with a background in truck mounted hydraulics, electrical wiring, diesel. 

  • You will perform inspections, preventive maintenance, and repair of CTOS Equipment: Load King Cranes, Bucket / Dump Trucks, Digger Derricks, Utility Trucks & more.
  • You provide Mechanics tools and should have a Class B CDL or the ability to obtain one upon hire.
  • Mon - Fri., Day shift, shop open 7am – 5pm, overnight travel, weekends and OT as needed

    • Sum...