Mobile Utility Equipment Field Mechanic (Hydraulic/Diesel)

Your day on the road

Sun up, truck loaded, route set. You roll out to a customer site along the Gulf Coast to troubleshoot a bucket truck that’s sidelined a crew. You dive into hydraulic circuits, confirm electrical continuity, and check diesel performance before swapping parts, testing, and signing off on a safe return to service. By afternoon, you’re across town inspecting a digger derrick and finishing a dielectric test. Tomorrow might bring a crane repair or DOT inspection on a medium/heavy-duty truck—each day different, all essential.

What you’ll handle

• Diagnose, repair, and maintain aerial, construction, and light- to heavy-duty truck equipment—including bucket trucks, digger derricks, cranes, service trucks, and other utility/construction assets—on customer sites.
• Work across diesel powertrains, hydraulic systems, and electrical/diagnostic platforms.
• Perform inspections, troubleshooting, component replacement, and repairs on CTOS rental and customer equipment, including DOT inspections and dielectric testing.
• Operate independently in the field while collaborating effectively with teammates and support staff when needed.
• Stay organized, self-sufficient, and safety-focused in dynamic outdoor environments.

Territory & travel

• Primary coverage: Louisiana/Mississippi, East Texas, and Western Alabama.
• Road-heavy role with 60–80%+ travel, including regular overnights.
• Frequent assignments along the Gulf Coast serving oil, gas, and utility customers.

Tools, truck, and compensation

• Fully equipped service truck with crane, welder, and compressor.
• Competitive pay with overtime eligibility.
• Comprehensive benefits package, 401(k) match, PTO, tool program, and more.

What you bring

• 7+ years of combined shop and field experience.
• Strong mechanical aptitude with deep hydraulic and electrical skills.
• Valid driver’s license required; CDL Class B is a plus.
• Personal tools required.
• Proven ability to work both independently and as a contributing team member.
• Highly organized, self-directed, and comfortable working in the field.

Technical strengths we value

• Construction equipment maintenance and heavy equipment repair.
• Hydraulics expertise; diesel engine and diesel/heavy equipment systems.
• Electrical systems and diagnostics on heavy equipment.
• Crane and lifting equipment systems; aerial and utility equipment systems.
• DOT and equipment inspection compliance; equipment repair and maintenance.
• ASE Automobile & Light Truck certification testing familiarity.
• Ground Support Equipment (GSE) maintenance exposure.

Equipment you’ll encounter

• Diesel engines and diesel vehicles
• Box trucks, flatbed trucks, pickup trucks
• Service trucks and refuse trucks
• Cranes, boom cranes, boom trucks
• Digger derricks and aerial devices
• Hi-rail trucks
• After-treatment systems (DPF, DEF)

Custom Truck One Source is an Equal Opportunity Employer