Mobile Master Diesel Mechanic (Up to 100% Travel)

RATP Dev USA; United States; Remote; USD 85,000 - 130,000; Full time

Job summary

RATP Dev USA is seeking a highly skilled Mobile Master Diesel Technician for a field-based, national role. You will perform advanced diagnostics, major component repairs, and rehabilitation work across transit fleets, mentoring local staff and supporting startups and fleet transitions.

The position requires extensive travel, a CDL with endorsements, and a strong focus on safety, quality, and timely vehicle releases. Join a leader in public transit maintenance and operations.

Qualifications

• High school diploma or equivalent required; formal Medium/Heavy-Duty Diesel Technology training preferred.
• 7+ years progressive heavy-duty fleet maintenance experience, transit-bus or motor-coach background advantageous.
• CDL Class A/B with Air Brake and Passenger endorsements required for certain assignments; ASE/Master credentials preferred.

Responsibilities

• Advanced diagnostics and repair of diesel/gas engines, transmissions, steering, and heavy-duty systems.
• Lead major component replacements and midlife rehabilitations within approved scope.
• Conduct PMs, safety inspections, document root cause, repairs, and verification.

Skills

Diagnostics

Heavy Repair

Field Leadership

Quality

Adaptability

Education

High School Diploma

Medium/Heavy-Duty Diesel Tech Training

CDL Class A/B with Air Brake & Passenger Endorsements

ASE Master Transit Bus

OEM Master Credentials

Job description

Job Title: Mobile Master DieselTechnician

Department: MaintenanceDiversification / Business Development

Reports To: Mobile ServiceManager / VP of Maintenance Diversification

Position Type: Full-Time,Non-Exempt

Location: Field-Based /National

Travel: Extensive nationaltravel, including overnight deployments up to 100% during active assignments

Job Summary:

At RATP Dev, we operate and maintainurban and regional transportation systems in virtually every corner of theglobe. As a leader in public transit, we are dedicated to providing safe,reliable, and innovative mobility solutions. Our team of maintenanceprofessionals is the backbone of our operation, ensuring that our fleet remainsat peak performance to serve our communities every day.

We are seeking an elite,safety-focused Mobile Master Diesel Technician to join our maintenancedivision. This national field role provides advanced diagnostics, complexrepairs, major-component replacement, rehabilitation support, and technicalleadership across transit fleet assignments.Critical components:

The Mobile MasterDiesel Technician provides high-level technical expertise, advanceddiagnostics, major mechanical repair, and project support across RATP Dev USAtransit fleets and other approved customer assignments. The technician worksindependently, supports startups and recoveries, mentors local staff, and helpsexecute defined overhaul and midlife-rehabilitation scopes.

Essential Functions / Responsibilities:

AdvancedDiagnostics & Repair: Diagnose and repair complex faultsinvolving diesel and gasoline engines, transmissions, steering, suspension, airsystems, heavy-duty braking, electrical/electronic controls, multiplex systems,HVAC interfaces, and emissions/aftertreatment.

MajorComponent & Overhaul Work: Perform or lead approvedmajor-component replacement and rehabilitation work, including engine andtransmission removal/installation, aftertreatment, cooling systems,axles/differentials, suspension, steering, brake systems, and related midlifeoverhaul tasks within the approved scope.

Inspections& Verification: Conduct comprehensive PM, condition, andsafety inspections; document root cause, repair steps, test results, parts,labor, and post-repair verification.

OperationalSupport & Startups: Deploy rapidly for new contractstartups, fleet transitions, temporary staffing shortages, repair campaigns,and vehicle recovery projects.

OEMDiagnostics: Use OEM diagnostic software, laptopcomputers, service information, schematics, pressure/measurement equipment, andother specialized tools to diagnose and verify repairs.

Mentoring& Quality Assurance: Serve as a technical mentor to localtechnicians, identify recurring failures, assist with training gaps, and reviewcompleted work for quality and procedural compliance.

Safety& Vehicle Release: Road test and release vehicles onlywhen authorized and after required safety checks, repair verification, andlocal release procedures are complete.

WorkOrder Documentation: Maintain precise electronic records ofdefects, cause, correction, parts, labor, photographs, test results, and finalvehicle disposition.

PreferredEducation and Experience:

Education: High School Diplomaor equivalent required. Technical school training in Medium/Heavy-Duty DieselTechnology or equivalent military training is highly preferred.

Experience: Minimum of seven (7)years of progressive heavy-duty fleet maintenance experience, with substantialtransit-bus, motor-coach, or comparable commercial vehicle experience.

Licenses/Certifications:Class A or Class BCDL with Air Brake and Passenger endorsements is required for assignments thatinclude covered-bus road testing and should be maintained as a corequalification for this role. ASE Master Transit Bus, ASE Master Medium/HeavyTruck, or equivalent OEM master-level credentials are strongly preferred and maybe required under the approved hiring standard.

Testing /Safety-Sensitive Assignments: Must satisfy applicable company, site,DOT/FMCSA, and FTA drug-and-alcohol testing requirements when assigned tocovered safety-sensitive duties.

RequiredSkills:

Diagnostics:Expert mechanical and electricaltroubleshooting using schematics, OEM service information, diagnostic software,and test equipment.

HeavyRepair: Strong capability inengine/transmission R&R, aftertreatment, brakes, steering, suspension,pneumatics, cooling, and related heavy-duty systems.

FieldLeadership: Abilityto work independently, mentor technicians, communicate repair decisions, andmanage assigned work safely and efficiently.

Quality: Detail-oriented approach to inspection,root-cause confirmation, repair verification, and vehicle release.

Adaptability:Ability to work across changing locations,project scopes, schedules, and fleet technologies.

Traveland Work Environment:

Travel: Extensive national travel to active transitmaintenance sites and projects. Company-paid travel, private lodging, transportation, and meals/per diem provided.

Lifting: Ability to lift, push, pull, and movecomponents up to 50 lbs. independently and use appropriate mechanicalassistance for heavier items.

Mobility: Frequent standing, walking, bending,kneeling, crawling, and climbing while inspecting and repairing heavy vehicles.

Environment:Exposure to active garage conditions,outdoor weather, oils, grease, engine heat/fumes, noise, and standardmaintenance chemicals.

Benefits:

We offer competitivecompensation and benefits (which vary based on role, location, and business),including medical/dental/vision, 401(k), and paid holiday/vacation.

We are an Equal Opportunity Employer & WeWelcome Diversity to our Teams!