Diesel Service Technician

Field Service Technician / MechanicCustom Truck One Source (CTOS) is a leading manufacturer of Utility Trucks and Equipment with a rich history spanning 30 years. With 40 locations across the USA, over 2500 employees, and a rental fleet exceeding 10,000 trucks.Hiring Field Service Technician / Mechanic with a background in truck mounted hydraulics, electrical wiring, diesel equipment. You will perform inspections, preventive maintenance, and repair of CTOS and Custom equipment.We equip you for success with:Load King Cranes TEREX Cranes Manitowoc Cranes Elliott Cranes National CranesCTOS Equipment: Boom Trucks / Cranes, Bucket / Dump Trucks, Digger Derricks, Utility Trucks & more.A company-provided utility service truck (crane, welder, compressor)Company phone, computer, and diagnostic toolsStrong benefits, paid time off, 401(k) match, uniforms, safety gear allowance, tool discounts, and moreYou bring your mechanical skills, your own tools, and a valid driver's license (CDL preferred), and we'll provide everything else you need to thrive.What You'll DoYou'll be the go-to expert for customers across your region—diagnosing, repairing, and maintaining highly specialized truck-mounted equipment. Most work is performed on customer sites, with occasional shop support.In this role, you'll:Troubleshoot, repair, and maintain:Bucket trucks / aerial devicesDigger derricksTruck-mounted cranes (LMI & CAN-bus systems)Hydraulic utility equipment & major componentsHeavy- and light-duty truck chassis, diesel, and electrical systemsPerform inspections, preventive maintenance, and on-site diagnosticsRead and interpret manuals, schematics, and repair ordersUse laptops and diagnostic software to identify issuesComplete documentation accurately (repair orders, timecards, inspection forms)Communicate with customers and CTOS teams to minimize downtimeFollow all safety, environmental, and regulatory requirementsParticipate in ongoing CTOS and manufacturer trainingTravel within and occasionally beyond your assigned territoryWhat Makes You a Great FitYou enjoy working independently and solving problems in real timeYou're experienced with hydraulic, mechanical, and electrical systemsYou're comfortable interacting with customers and working in the fieldYou want a role where every day is differentPreferred SkillsElectrical, hydraulics, welding, and schematic/blueprint readingDiagnostic software experience (QuickServe, DTNA, etc.)DOT, ANSI, and dielectric testing experienceRequirementsHigh school diploma or GED5+ years of related experience (field or shop tech)Valid driver's license (CDL Class B preferred)Must provide your own mechanic toolsProficiency using documentation software and managing time effectivelyCompensation & BenefitsCompetitive pay based on experience + overtime opportunities401(k) with employer matchMedical, dental, vision, and life insurancePaid vacation, sick time, and holidaysShort-term & long-term disabilityEmployee Stock Purchase PlanUniforms, safety boot & glasses allowanceTool discount programsCustom Truck One Source is an Equal Opportunity Employer committed to creating an inclusive workplace. All qualified applicants will receive consideration without regard to protected characteristics.We do not offer sponsorship—candidates must be authorized to work in the U.S. without the need for sponsorship.