Step Into A Day You'll Own Sun up, tools checked, laptop connected. You roll into a bay or head out to a job site ready to keep mission-critical trucks and specialty equipment moving. That's the rhythm at Custom Truck One Source (CTOS)—a 30+ year industry leader with 40+ locations, 2,600 employees, and a 10,000+ unit fleet serving utility, telecom, rail, and construction markets. The Work You'll Drive Forward You'll tackle full-lifecycle maintenance and repairs across commercial trucks and heavy equipment—bumper to bumper. Every day brings a new challenge: Pinpoint problems fast: Use advanced diagnostic software and test equipment to uncover mechanical, hydraulic, and electronic issues with precision.

Rebuild the foundation:

Inspect, repair, and overhaul chassis components—steering, suspension, and braking systems—to keep heavy trucks tracking true.

Protect performance:

Service emissions systems with a focus on EGR components, including coolers and valves, to maintain compliance and reliability.

Power work tools:

Install, troubleshoot, and repair PTO gearboxes and integrated hydraulics—pumps, cylinders, valves, and winches.

Master the circuitry:

Read schematics and repair complex 12V/24V circuits, wiring harnesses, starting/charging systems, and electronic control modules. What You Bring Valid Driver's License (CDL is a plus) Hands-on experience as a Diesel Mechanic on Class 6, 7, or 8 heavy trucks Strong mechanical aptitude and an uncompromising commitment to safety and compliance Vocational/technical graduates and military veterans with specialty training are encouraged to apply Why CTOS We invest in you with competitive pay based on skills and experience, paid vacation, sick time, and holidays, a 401(k) match, healthcare, dental, vision, and prescription coverage, company-provided uniforms, a boot allowance, ongoing training, and more.

•Equal Opportunity Employer