Aerial Work Platform, Agriculture, Backhoe Loader, Class A License, Construction, Crane, Data Analysis, Diagnostics Solutions/Software, Diesel Engine, Driver's License, Dump Truck/Tipper, Electrical Components, Electrical Engineering, Electricity, Equipment Maintenance/Repair, Forestry, Forklift, Heavy Equipment/Vehicles, Hydraulic Engineering, Identify Issues, Lifting Equipment, Maintenance - Electrical, Maintenance Services, Manual Dexterity, Military, OEM (Original Equipment Manufacturer), Preventative Maintenance, Problem Solving Skills, Property Rentals, Sales, Training Program, Vehicle Fleets
Build, Diagnose, and Deliver for Essential Industries
At Custom Truck One Source (CTOS), we keep critical infrastructure moving by designing, building, renting, selling, and servicing specialized trucks and equipment used by utilities, telecom, construction, forestry, oil, and rail. Join a team that backs experts with the parts, tools, software, and training to solve real problems fast.
A day in the life
You clock in Monday morning and tackle a boom truck that failed an inspection. You pull fault codes, analyze engine data, and isolate an electrical issue. By lunch, you’ve replaced a harness, verified hydraulics, and updated the service record. In the afternoon, you perform PM on a digger derrick, then switch to diagnosing a Detroit-powered chassis using DDDL. You wrap the day by submitting a clean, accurate work order and reviewing the week’s safety topic ahead of our monthly meeting.
What you’ll handle
- Diagnose, repair, and replace worn or damaged components on vocational and utility trucks
- Perform preventative maintenance and detailed inspections to keep fleets compliant and reliable
- Troubleshoot mechanical, hydraulic, and electrical systems from chassis to mounted equipment
- Service truck-mounted gear: boom and bucket trucks, diggers, dump and service trucks, forestry units, and aerial devices
- Use diagnostic software and scan tools to identify faults and performance issues
- Complete accurate service records, submit work orders for approval, and track repair costs
- Follow all safety procedures and participate in monthly safety meetings
- Pitch in with additional duties as assigned
Core strengths you bring
- Advanced diesel diagnostics and repair across mechanical and electrical domains
- Preventative maintenance discipline and keen visual inspection skills
- Fluency with diagnostic platforms and scan tools; strong fault-code interpretation
- Working knowledge of diesel engines, drivetrains, hydraulics, and electrical systems
Tools and tech you’ll use
- Cummins INSITE diagnostic software
- Detroit Diesel DiagnosticLink (DDDL)
- OEM and aftermarket diagnostic tools
- Electrical and hydraulic troubleshooting methods and equipment
What it takes
- Experience: 5+ years as a Service Technician / Diesel Mechanic on medium- and heavy-duty trucks
- Education: High school diploma or equivalent
- Background: Experience with diesel, medium/heavy trucks, or related equipment (construction, agriculture, military)
- Skills: Mechanical aptitude across hydraulics, electrical, and heavy equipment; basic computer skills for documentation
- Licensing: Valid driver’s license; must supply your own tools
Preferred
- Vocational/Technical training or Military Wheeled Mechanic experience
- 3+ years working on utility trucks or heavy equipment
- CDL Class A or B
Schedule and physical demands
- Monday–Friday day shift; overtime as needed (occasional Saturdays)
- Ability to lift and move tools/equipment
- Frequent bending, stooping, kneeling, and standing
- High level of manual dexterity
Pay, perks, and growth
- 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 career advancement opportunities
Proficiencies that set you apart
- 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.
C
CTOS - Trucks & Equipment