Mobile Diesel Mechanic II

vision insurance, parental leave, paid time off, paid holidays, tuition assistance, 401(k) United States, Florida, Miami Sep 14, 2026 Cox Fleet keeps your fleet moving! Headquartered in Indianapolis, Cox Fleet has grown to become one of the largest fleet maintenance companies in the country. Cox Fleet is the leading provider of on-site mobile maintenance and repair services nationwide, offering mobile on-site fleet service for light medium, and heavy-duty trucks and trailers. Cox Fleet also services customers utilizing its 50+ nationwide service centers; each offering accident repair, painting, refurbishment, and heavy mechanical repair. We are supported by a 24/7 in-house call-center and provide scheduled maintenance services and unscheduled services to fleets anywhere, anytime. Mobile Diesel Technician Level II The Mobile Diesel Technician Level II will be responsible for performing licensed DOT inspections, Preventative Maintenance inspections, light and follow-up repairs, light mechanical/hydraulic/electrical and electronic diagnostics, and other duties as assigned. The Mobile Diesel Technician II can perform more advanced diagnostics and repairs under the supervision of a Sr Mobile Diesel Technician or higher. The Diesel Technician II continues to learn additional advanced mechanical skills and diagnostic techniques. A successful Diesel Technician II complies with all company policies and achieves high level performance metrics. DUTIES: Perform scheduled preventative maintenance ("PM"), DOT Inspections and follow up repairs on light, medium and heavy-duty vehicles in a mobile/field environment. Perform minor adjustment and repairs on various types of truck equipment including, but not limited to the following: Electrical/Brake/Cooling Systems, Starters/Alternators, Fan clutches, Engine electronics, Diesel steering systems, Engines (gas and diesel), Transmissions (manual and automatic), Clutches, Differentials, etc. Diagnose, adjust, and repair various types of truck equipment including, but not limited to the following: Electrical/Brake/Cooling Systems, Starters/Alternators, Air conditioning systems, Fan clutches, Engine electronics, Diesel steering systems, Engines (gas and diesel), Transmissions (manual and automatic), Clutches, Differentials, etc. Inspect, test, and listen to defective equipment to diagnose malfunctions, using test instruments such as handheld computers and pressure gauges. Road test vehicles to diagnose malfunctions and to ensure that they are working properly. Identify problems, determine accuracy and relevance of information, using sound judgment to generate and evaluate alternatives. Independently manage parts inventory and equipment provided on company-issued service truck and perform periodic reconciliation. Maintain and operate company-issued service vehicle, conduct safety checks, and pre-/post-trip inspections of vehicle. Work with and listen effectively to clients and customers to assess their needs, providing information or assistance, resolving their problems, or satisfying their expectations. Manage concurrent assigned tasks, making effective judgments as to prioritizing work related activities and time allocations. Use hand tools, precision instruments, as well as Diesel tools, welding equipment, lift and jacks. Document according to company standards and upload pictures of work performed, parts used, and all findings observed on Repair Orders ("RO") using company-issued iOS device and our proprietary TRAIT application. Accurately complete DOT forms and all other forms of documentation in a timely fashion. Work with a high degree of independence and manage own daily schedule. Maintain a high level of productivity and be able to work within or close to most Standard Repair Times. Obtain parts from approved local and national vendors as necessary for the repairs to be performed. Communicate with management and support team via email or phone to obtain approvals on repair estimates, retrieve purchase order numbers and/or discuss RO findings notes. Perform all work in compliance with organizational safety, health and environmental policies, and federal regulations, to include OSHA, EPA, and DOT. Maintain company issued service truck, conduct safety checks and daily pre/post trip inspections. REQUIREMENTS: High School Diploma/GED and 3 years' experience in a related field. The right candidate could also have a different combination, such as any level degree/certification beyond a HS diploma/GED in a related discipline; or 5 years' experience in a related field. Possess and supply a set of hand tools necessary to perform required job duties. Obtain Automotive Service Excellence (ASE) certification T8 (PMI) within eighteen (18) months. This position follows regulations issued by the Department of Transportation's (DOT) Federal Motor Carrier Safety Administration (FMCSA). Candidate must be able to successfully complete and pass a DOT-regulated pre-employment background screening and DOT physical prior to employment. A current and valid DOT medical card with more than four (4) months remaining until its expiration may be submitted in leu of a DOT physical. If the DOT medical card has four (4) months or less of validity remaining, a DOT physical will be required. Due to interstate operating authority commerce regulations, candidates must be at least 21 years or older. Safe drivers needed; valid driver's license required. Candidate must hold a valid state-of-residence driver's license, be able to obtain and maintain their Driver Qualification File. REQUIRED CERTIFICATIONS OR OBTAINED WITHIN 18 MONTHS ASE T8 (PMI) certification PREFERRED CERIFICATIONS ASE T3 (Drivetrain) certification ASE T4 (Brakes) certification ASE T5 (Suspension) certification ASE T6 (Electrical and Electronic Systems) ASE T7 (HVAC) certification ASE 608/609 certification* SKILLS & ABILITIES Understand the implications of new information for both current and future problem-solving and decision-making. Ability to lift, bend, climb, stand, and walk for long periods of time; ability to perform moderately heavy laboring work Ability to exert oneself physically over long periods of time without tiring, which may include performing repetitive tasks. Communicates information (for example, facts, ideas, or messages) in a succinct and organized manner. Engages in effective two-way communication with individuals and groups. Ability to determine the type of tools and equipment needed. Ability to accurately judge which of several objects is closer or farther away from the observer, or the distance between an object and the observer. Use logic and reasoning to identify the strengths and weaknesses of alternative solutions, conclusions, or approaches to problems. Why Cox Fleet? Safe driving & Tech efficiency bonuses Safety Boots & Safety Glasses reimbursement Extreme weather gear (Cold & Hot) Uniforms provided with laundry service where available Take the service truck home daily (stop paying for gas!) Laptop & company cellphone provided Technical training provided to advance your career Dedicated career path - 'Over 50% of our front-line managers are promoted from within'. Benefits: Health, dental, vision insurance starts DAY ONE of employment. 401(k) matching starts after 90 days, 100%-match up to 6% contribution and an additional 2% discretionary contribution by the company. Accrue up to 200 hours (5-weeks) of Paid Time Off based on your tenure with the company. Tuition Assistance/Reimbursement Adoption/Surrogacy assistance Pet Insurance Multiple ERG, diversity groups, and company paid volunteer hours. Employee discounts on new vehicle purchases, cellphone plans, ridesharing, home/rental insurance, wellness/fitness incentives and much more. USD 29.38 - 44.09 per hour Compensation: Hourly pay rate is in the range of $29.38 - $44.09/hour. The hourly base rate may vary within the anticipated range based on factors such as the ultimate location of the position and the selected candidate's knowledge, skills, and abilities. Position may be eligible for additional compensation that may include commission (annual, monthly, etc.) and/or an incentive program. Benefits: Employees are eligible to receive a minimum of 6.67 hours of paid time off every month and seven paid holidays throughout the calendar year. Employees are also eligible for additional paid time off in the form of bereavement leave, time off to vote, jury duty leave, volunteer time off, military leave, and parental leave. Applicants must currently be authorized to work in the United States for any employer without current or future sponsorship. EOE, including disability/vets #J-18808-Ljbffr