Own the Diagnosis. Elevate the Fix.
Custom Truck One Source (CTOS) supports essential industries with purpose-built trucks and equipment—and we need a diagnostics-driven technician who thrives on complex problems and clean solutions. Grow your career through our STEP Technician Training Program while working on diverse platforms that keep communities powered and connected.
Your impact
- Lead end-to-end troubleshooting across diesel engines, drivetrains, hydraulics, electrical systems, and truck-mounted utility equipment
- Execute preventative maintenance and compliance inspections with attention to detail
- Operate diagnostic software and scan tools to pinpoint, validate, and document faults
- Service boom/bucket trucks, digger derricks, dump and service trucks, forestry units, and aerial devices
- Produce precise repair documentation, submit work orders for approval, and ensure cost accuracy
- Champion safe work practices and participate in monthly safety meetings
- Support team objectives with additional duties as needed
Bring these competencies
- Advanced diesel engine diagnostics and repair (mechanical and electrical)
- Preventative maintenance discipline and thorough visual assessments
- Proficiency with scan tools and software; strong data and fault-code interpretation
- Working command of diesel engines, drivetrain, hydraulics, and electrical circuits
Technical stack
- Cummins INSITE
- Detroit Diesel DiagnosticLink (DDDL)
- OEM and aftermarket diagnostic tools
- Electrical and hydraulic troubleshooting methodologies
Minimum profile
- 5+ years as a Service Technician / Diesel Mechanic on medium- and heavy-duty trucks
- High school diploma or equivalent
- Experience across diesel, medium/heavy trucks, or adjacent sectors (construction, agriculture, military)
- Mechanical aptitude spanning hydraulics, electrical, and heavy equipment
- Basic computer skills for documenting repair activity
- Valid driver’s license and the ability to furnish your own tools
Preferred
- Vocational/Technical schooling or Military Wheeled Mechanic background
- 3+ years repairing utility trucks or heavy equipment
- CDL Class A or B
Schedule and physical requirements
- Monday–Friday day shift; overtime as needed (occasional Saturdays)
- Lift and move tools/equipment as required
- Frequent bending, stooping, kneeling, standing
- High manual dexterity
Compensation and benefits
- Competitive pay based on experience
- Health benefits
- 401(k) with company match
- Paid time off (up to 25 days)
- Tool discount program
- STEP Technician Training Program and advancement opportunities
Proficiency areas
- Heavy Equipment Repair
- Motor Replacement/Repair/Maintenance
- Diesel Engine Systems
- Engine Repair
- Light Vehicle Diesel Engines
- Lift Truck Repair & Maintenance
- Ground Support Equipment (GSE) Maintenance
- Diesel & Heavy Equipment Systems
- Hydraulic Systems & Components
- Electrical Systems & Diagnostics (Heavy Equipment)
- Equipment Diagnostics & Troubleshooting
- Power Take-Off (PTO) & Auxiliary Systems
- Crane & Lifting Equipment Systems
- Aerial & Utility Equipment Systems
- DOT & Equipment Inspection Compliance
Compliance
Custom Truck One Source is an Equal Opportunity Employer and provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws.
Please note that we do not offer sponsorship for work authorization. Only candidates authorized to work in United States without the need for sponsorship will be considered for this position.