Custom Truck One Source (CTOS) is hiring at our Union Grove, Wisconsin location!
For more than 30 years, CTOS has been a leader in specialized truck and heavy equipment solutions. With 41 locations, 2,500 employees, 8,000+ customers, and a rental fleet of over 10,000 units, we support the industries that keep North America running — electric utilities, telecom, rail, forestry, and construction.
**Now Hiring – **
Monday – Friday, Day Shift
We welcome mechanics and technicians from all backgrounds, including:
Journeyman Technicians
Vo-Tech & Trade School Graduates
Veterans (wheeled/track vehicles, aircraft, generators, engineering rates)
Construction & Agricultural Equipment Mechanics
Diesel, Hydraulic, and Electrical Technicians
Equipment & Brands We Support
**Truck Chassis – **
Medium and heavy Duty
**Crane & Equipment Manufacturers - **
Load King, Terex, Manitowoc, Elliott, National Crane
**Equipment Types - **
Boom Trucks, Cranes, Bucket Trucks, Digger Derricks, Utility Trucks , Specialty Equipment
Desired Experience
You do not need every skill listed — CTOS values strong mechanical aptitude and the willingness to learn. We will help build on your experience.
Preferred experience includes:
Education & Background
Tell us how you got started — we value all paths into the trades:
High school auto, welding, construction, or shop programs
Vo-Tech or trade school training
Military mechanical training and experience
On-the-job mechanical experience
Personal projects, racing, farm, or hobby mechanic work
Licensing & Tools
Valid driver’s license required
CDL is a plus
Personal mechanic tools preferred, especially for heavy equipment or utility truck repair
Schedule & Benefits
Monday–Friday schedule
Most shifts start between 5:00–6:00 AM
Competitive pay based on experience
401(k) with company match
Medical, dental, and vision insurance
Paid vacation, holidays, and sick time
Ongoing training and career advancement opportunities
Uniforms and safety gear allowance
Custom Truck One Source is an Equal Opportunity Employer.
You should be proficient in:
- ASE Automobile and Light Truck Certification Tests
- Vehicle & Fleet Welding
- Diesel & Heavy Equipment Systems
- Electrical Systems & Diagnostics (Heavy Equipment)
- Power Take-Off (PTO) & Auxiliary Systems
- Crane & Lifting Equipment Systems
- Aerial & Utility Equipment Systems
- DOT & Equipment Inspection Compliance
Machines & technologies you'll use:
- Diesel Engine (Detroit Diesel, Cummins, PACCAR)
- Automotive Vehicles (Ford)
- Diesel Vehicles (Ford)
- Box Trucks (Ford, Peterbilt, Kenworth, Freightliner, Isuzu, Hino)
- Crane (Konecranes, Terex, Manitowoc)
- Boom Truck (Terex, Altec, Elliott, National Crane, Load King)
- Digger Derrick (Terex, Altec, Elliott)
- Aerial Devices (Terex, Altec, Elliott, Versalift)
- Boom Crane (Manitowoc, Link-Belt)
- Tractor-Trailer (Peterbilt, Kenworth, Freightliner, International, Volvo Trucks, Western Star)
- Refuse Truck (Heil)
- Service Truck
- Hi-Rail Truck
- Power Take-Off (PTO)
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