- Dallas, Texas, United States
- 3+ years
1–10 jobs· newest first
$29–$44Full-time
Mid

+10K new in the last hour
Mobile Diesel Technician Level II responsible for performing DOT inspections, preventative maintenance, and repairs on light, medium, and heavy-duty vehicles in a mobile/field environment.
Perform DOT inspections, preventative maintenance, and repairs on light, medium, and heavy‑duty vehicles in a mobile/field environment.
Hourly base pay rate is $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.
Cox Fleet · Posted Nov 7, 2026
Senior mobile diesel technician responsible for DOT inspections, preventative maintenance, and advanced repairs on light, medium, and heavy‑duty vehicles in a mobile/field environment.
Mobile Diesel Technician Level II responsible for performing DOT inspections, preventative maintenance, and repairs on light, medium, and heavy-duty vehicles in a mobile/field environment.
Mobile Diesel Technician II responsible for performing licensed DOT inspections, preventative maintenance, and advanced repairs on light, medium, and heavy-duty trucks and trailers in a mobile/field environment.
Mobile Diesel Technician Level II responsible for performing DOT inspections, preventative maintenance, and repairs on light, medium, and heavy-duty vehicles in a mobile/field environment.
Mobile Diesel Technician Level II responsible for performing DOT inspections, preventative maintenance, and repairs on light, medium, and heavy-duty vehicles in a mobile/field environment.
*** If you have any questions or to connect with a recruiter while your application is being reviewed, please Text DFS2 to 317-597-8130 *** (Sunday - Wednesday) (8 PM - 6 AM) ****EOE, including disability/vets**** 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. Cox Fleet is currently hiring a 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. Class C Drivers License is required for this position. 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? Weekly pay – get paid every Friday for added convenience and financial flexibility 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!) Tablet & 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. “Please note: This posting is for informational purposes only and does not constitute an official job application. To be considered for employment, all candidates must submit their application directly through official Cox careers website. Applicants who complete Applications that are received through third-party postings, social media, or other channels will be invited to submit an official Application through the company’s career site.”
****EOE, including disability/vets**** 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. Cox Fleet is currently hiring a Mobile Diesel Technician II. The Mobile Diesel Technician II will be responsible for performing licensed DOT inspections, Preventative Maintenance inspections, light and advanced repairs, advanced mechanical/hydraulic/electrical and electronic diagnostics, and other duties as assigned. Heavily relied upon for advanced diagnostics and triage of complicated repairs by Mobile Diesel Technician I/II. Considered the Lead on jobsites by customers and Technicians. Functions as a consultant on the customer's behalf. A successful Mobile 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 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. At least 3 years of experience with refrigerated equipment Possess and supply a set of hand tools necessary to perform required job duties. OEM training and certifications are preferred. Participate in and complete all-in company required training Possess and supply a set of hand tools necessary to perform required job duties. 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 ASE 608/609 certification* PREFERRED CERIFICATIONS ASE T2 (Diesel Engines) certification ASE T3 (Drivetrain) certification ASE T4 (Brakes) certification ASE T5 (Suspension) certification ASE T6 (Electrical and Electronic Systems) ASE T7 (HVAC) certification ASE A8 (Engine Performance) certification ASE L1 (Advanced Engine Performance Specialist) ASE L2 (Electronic Diesel Engine Diagnosis Specialist) 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? Weekly pay – get paid every Friday for added convenience and financial flexibility 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!) Tablet & 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. Please note: This posting is for informational purposes only and does not constitute an official job application. To be considered for employment, all candidates must submit their application directly through official Cox careers website. Applicants who complete Applications that are received through third-party postings, social media, or other channels will be invited to submit an official Application through the company’s career site.
Position Summary: As an experienced Body Shop Technician with Penske, you’ll use industry-leading technology and repair techniques – plus cutting-edge diagnostic equipment – to get our customers' state-of-the-art vehicles back up and running in high-quality condition. You’ll take the lead to perform minor and major truck and trailer collision repairs, while enjoying the advantages of working for a winning team that’s got your back. You’ll have the opportunity to continue learning with our in-house training programs. Learn from the best and have access to leading technology, as Penske was the first in the industry to become I-CAR Gold certified. You’ll get to work on lots of different equipment and we give you the time to get the job done right. If you are an experienced body shop technician and are interested in a stable career with a lot of opportunity for growth, join our team. Work Hours: Monday- Friday 2nd shift Why Penske is for You: • Competitive salary and incentives • Career stability • Opportunity for growth • Excellent benefits, including lots of time off • Advanced vehicle maintenance technology Major Responsibilities: • Perform all levels of Truck Collision Repair and maintenance services. Duties may include the overhaul, adjustment, replacement and repair of all series of motor truck and trailer equipment including, but not limited to the following: Cab/ Sheet Metal Repair, Fiberglass Repair, Composite Bonding/ Repair, Welding/ Fabricating, Frame Straightening/ Alignment, Suspension Repair/ Alignment, Box Repair/ Replacement, Air Conditioning Systems, Electrical/ Brake/Cooling Systems, Surface Preparation, and Paint/ Mixing/ Tinting/ Blending. • Identify and determine parts required for repair of disassembled truck and trailer units • Identify warrantable repairs and document on repair order • Maintain work area appearance and safety • Road test vehicles when necessary • Perform duties with little or no supervision and in a timely and efficient manner • Other projects and tasks as assigned by supervisor Qualifications: • 6 years practical experience (or an equivalent combination of related education and experience) • High School Diploma or equivalent required • Vocational/technical school preferred • Specialized training and experience in the repair/refinish of all series of truck and trailer required • Proficiency in the use of all tools of trade (including welding equipment, paint equipment, shop machines, and power tools) required • Valid driver’s license required • Basic computer skills required • The associate will be required to understand and comply with specific instructions, guidelines, rules, regulations, or other information established by Penske management • The associate must be able to perform all work adhering to DOT, OSHA, and all Penske safety and maintenance policies; including but not limited to the correct selection and use of appropriate tools, PPE, machine guarding, and established best safety practice. • Regular, predictable, full attendance is an essential function of the job • As this position requires driving Penske and customer vehicles, it is regulated by the DOT and requires a current driver qualification file to be maintained as required by the role. The driver qualification file includes: an annual motor vehicle records (MVR) check, a successfully completed DOT Physical, and Safety Performance History records request from prior employers in the last 3 years. Additionally, CDL holders will have a DOT Drug Screening within 30 days of start and subject to a FMCSA Clearinghouse review. • Willingness to travel as necessary, work the required schedule, work at the specific location required, complete Penske employment application, submit to a background investigation (to include past employment, education, and criminal history) and drug screening are required. This position is regulated by the Department of Transportation or designated as safety sensitive by the company, and the ability to work in a constant state of alertness and in a safe manner is required. Associates must have the ability to accept responsibility for their own safety, as well as the safety of others. Whether it’s on the racetrack or in the body shop, our people love working here. Our supportive team culture will make you feel like you’re not just getting a job, but joining a family. So it’s time to do what you love, love what you do. Physical Requirements: The physical and mental demands described here are representative of those that must be met by an associate to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions. • While performing the duties of this job, the associate will be required to move frequently, stand, walk, climb, bend, and sit for extended length of time throughout their scheduled working period. • The associate is required to use their hands on a routine and daily basis to grasp, reach, touch, handle, feel, and/or otherwise operate required tools or controls. • The associate must be able to work safely at heights using applicable ladders and elevated working platforms. • The associate must be able to safely work in all weather conditions. • Given the frequent movement of large trucks through the workplace, the associate must be able to see and hear in order to safely navigate the work environment. • The associate must be able to regularly lift and/or move up to 50lbs/23kg and occasionally lift and/or move up to 100lbs/45kg. This position also requires the ability to push/pull truck tires on a regular basis that exceed 100 pounds. Penske is an Equal Opportunity Employer. About Penske Truck Leasing/Transportation Solutions Penske Truck Leasing/Transportation Solutions is a premier global transportation provider that delivers essential and innovative transportation, logistics and technology services to help companies and people move forward. With headquarters in Reading, PA, Penske and its associates are driven by a dedication to excellence and a commitment to customer success. Visit Go Penske to learn more.