Sr Mobile Diesel Mechanic
Fleet Services by Cox Automotive
Sr. Mobile Diesel Technician
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 Sr. Mobile Diesel Technician. The Sr. Mobile Diesel Technician 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 Sr Mobile Diesel Technician 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 5 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 and 3 years' experience; or 7 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.
- Obtain 608/609 certification 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 lieu 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.
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 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.
- ...Job Description Job Description Job Title: Mobile Diesel Mechanic Location: Randallstown, MD Company: Priority Towing & Recovery, Inc About Us: Priority Towing operates a large fleet of commercial vehicles, ensuring reliable and efficient transport solutions...Suggested
$18 - $21 per hour
...Service has a solid foundation and a forward-thinking vision. As a Mobile Maintenance Technician, you travel to a customer's facility or... ...employee will also be exposed to fumes and particles, moving mechanical parts and vibration. The noise level in the work environment...SuggestedContract workLocal areaFlexible hoursNight shift$33 - $35 per hour
...ServicesAre you ready to wrench with a mechanically savvy team with leadership that cares and... ...REPAIRExperienced Technicians: The skilled mobile technicians at our company have decades... ...'ll Need To HaveMinimum of 3 years of diesel and trailer repair experience preferred....SuggestedLocal areaShift work$18 - $21 per hour
...Service has a solid foundation and a forward-thinking vision. As a Mobile Maintenance Technician, you travel to a customer's facility or... ...employee will also be exposed to fumes and particles, moving mechanical parts and vibration. The noise level in the work environment...SuggestedHourly payContract workLocal areaFlexible hoursNight shift- SNI is seeking an On‑Road Field Diesel Mechanic in Reisterstown, MD to maintain and repair heavy equipment at multiple job sites. The role requires independent field work, strong diesel engine expertise, and travel to sites around Baltimore, MD. You will service excavators...Suggested
- Priority Towing & Recovery, Inc in Randallstown, MD is seeking a Mobile Diesel Mechanic to diagnose, repair, and maintain a wide range of diesel-powered trucks and fleet vehicles. You will perform preventative maintenance, inspections, and routine services, and use diagnostic...
$35 - $45 per hour
Clean Harbors Sarnia, Ontario is looking for a Licensed Mobile Mechanic to join their safety conscious team! This position will be responsible... ...: 2026-05-29 Job Schedule: Full time Job Function: Diesel, Truck & Heavy Equipment Mechanics Locations: 495 Scott...Permanent employmentFull time$18 - $30 per hour
...KAG is now seeking to hire a Technician I-III or Apprentice! Diesel Mechanics are required to safely and accurately perform general property and vehicle maintenance & repair duties in and around the shop operations in a fast-paced environment. Hours...Hourly payTemporary workApprenticeshipLocal areaImmediate startMonday to Friday- ...Job Description Job Description Job Summary We are looking for a Diesel Mechanic to join our busy truck center. As a mechanic, you will assist our lead mechanic by diagnosing and repairing issues with cars, trucks, tractor trailers, and other heavy equipment....
- ...Job Description Job Description We are looking to hire an experienced diesel mechanic to inspect, service, and maintain our range of heavy-duty construction equipment and trucks. As a lead diesel mechanic, you will be responsible for driving to the job site, inspecting...
- ...Job Description Job Description The Diesel Mechanic will maintain production and quality by ensuring operation of construction vehicles, machinery and mechanical equipment. Job Duties: As a Diesel Mechanic, you will handle repairs on engines, drive trains...For contractors
$27.4 - $34.3 per hour
...shift Schedule Full time; Wednesday-Friday and every other weekend, 5:30 a.m.-4:00 p.m. Job overview Work outside a shop as a Mobile Diesel Technician in Sparrows Point, MD. Complete on-site maintenance on trucks, containers and trailers. Be supplied with a service...Hourly payFull timeShift workWeekend workDay shift$22 - $30 per hour
...Companies is searching for a Full-Time Evening or Overnight Mobile Diesel Technician to join our team! Up to $8,000 signing bonus Pay... ...advanced diagnostic tools to address electrical, hydraulic, and mechanical issues Performing scheduled preventative maintenance (PMs)...Hourly payFull timeImmediate startRelocation packageNight shiftAfternoon shift- Schneider National, Inc. is seeking a Mobile Diesel Technician for Sparrows Point, MD. You will work on-site, perform maintenance on trucks and trailers, and operate from a service-equipped truck. The role requires a diesel tech background (or 1+ year experience), travel...
$114k - $171k
...advantage to the warfighter. Come be a part of our mission!Northrop Grumman Space Systems (NGSP) is seeking an experienced Principal/Sr. Principal Systems Engineer supporting our Advanced Tactical Missions Business Unit (BU) to support a program out of our Linthicum, MD...SeniorFull timeRelocation packageShift work- Schneider is seeking a Mobile Diesel Technician in Sparrows Point, MD for on-site maintenance of trucks, containers and trailers. You will operate with a company-provided service truck and be responsible for tire changes, electrical and engine repairs, and welding as needed...Weekend work
$108.8k - $163.2k
...Linthicum, Maryland.Active TS and eligibility for SCI clearance is required to be considered.This position can be staffed at a Principal or Sr. Principal level based on the Basic Qualifications below.Basic Qualifications:Principal Engineer: BS in STEM with 5 years relevant...SeniorFull timeRelocation packageShift work$108.8k - $163.2k
.... ground SW, PL FSW), root cause determination, and discrepancy report (DR) resolutionThis position can be staffed at a Principal or Sr. Principal level based on the Basic Qualifications below.Basic Qualifications:Principal Engineer: BS in STEM with 5 years relevant experience...SeniorFull timeRelocation packageShift work$34 - $37 per hour
...Diesel Mechanic - Reefer Tech LANDOVER, MD Description Aim Transportation Solutions is hiring an experienced Reefer Tech in Landover, MD . If you have strong diagnostic experience, Carrier and Thermo King experience , and preventative maintenance knowledge...Hourly payTemporary workMonday to FridayShift work$135.8k - $203.6k
...ability to gain SAP Clearance. These roles are contingent upon Program Award.Basic Qualifications:Bachelor’s degree in electrical or mechanical engineering with 8 years of industry experience, or master’s degree and 6 years of industry experienceActive and current Secret...SeniorFull timeRelocation packageShift work$108.8k - $163.2k
...insatiable drive to do what others think is impossible. Our employees are not only part of history, they're making history.This Principal/Sr. Principal Electronics Engineer position requires a blend of Hardware and Software skills, experience with DC, Analog, Digital or RF...SeniorFull timeRelocation packageFlexible hoursShift work$123.4k - $185k
...impossible. Our employees are not only part of history, they're making history.Northrop Grumman Mission Systems Sector is seeking a Sr. Principal Quality Engineer to join our team in Baltimore, MD.What You'll Be Doing:Define and monitor mission‑assurance specifications...SeniorFull timeContract workFor subcontractorRelocationShift work$112.2k - $168.2k
...think is impossible. Our employees are not only part of history, they're making history.We are looking for you to join our team as a Sr. Supply Chain Subcontract Specialist on the Subcontract Services (“SCS”) team onsite out of Linthicum, Maryland, or Rolling Meadows-Illinois...SeniorFull timeContract workTemporary workRelocationShift work$105.4k - $158k
...applications.This position is on-site in a classified program area in Linthicum, Maryland.This position can be staffed at a Principal or Sr. Principal level based on the Basic Qualifications below.Basic Qualifications:Principal Engineer: BS in STEM with 5 years relevant...SeniorFull timeRelocation packageShift work$105.4k - $158k
...Class D missions. All the way from early mission and concept design to on-orbit operational support. This position is for a Principal or Sr Principal Systems Engineer to join our Eastern Region Systems Engineering team. As a member of this team, you will have the...SeniorFull timeRelocation packageShift work$119.6k - $179.4k
...contingent upon Program Award.These are Dual-level openings, candidates will be considered at both a level 3 (Principal Engineer) or 4 (Sr. Principal Engineer) based upon the Basic Qualifications listed below.Basic Qualification - Principal Digital Receiver Exciter...SeniorFull timeRelocation packageShift work$112.2k - $168.2k
...do what others think is impossible. Our employees are not only part of history, they're making history.Northrop Grumman is seeking a Sr. Principal Industrial Security Analyst 4/Lead CPSO to support multiple program(s) as it relates to all applicable classified federal,...SeniorFull timeWork experience placementRelocationShift work$28 - $40 per hour
Waste Management is seeking Diesel Mechanics to inspect, maintain, and repair diesel-powered garbage trucks and heavy equipment used for waste collection operations. Diesel Mechanics are responsible for diagnosing mechanical issues, performing preventative maintenance,...Hourly payFull timeRelocation packageShift workNight shiftAfternoon shift- ...Diesel Mechanic / Technician Johnson & TowersMiddle River, MDJohnson & Towers, a subsidiary of Indel Power Group, has an opening for a C level Diesel Mechanic/Technician at our location in Middle River, Maryland. This individual must have previous experience as a technician...Relocation
$35.5 per hour
...Hydrovac Diesel MechanicClearsite Industrial Services is a leading provider of hydrovac and vacuum excavation solutions, renowned for... ...our customers in the construction industry. As a Hydrovac Diesel Mechanic, you will play a vital role in ensuring our specialized...Hourly pay
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Sr Mobile Diesel Mechanic. Be the first to apply!
- mobile technician Baltimore, MD
- mobile mechanic Baltimore, MD
- diesel mechanic mining Baltimore, MD
- heavy duty diesel mechanic Baltimore, MD
- diesel mechanic Baltimore, MD
- diesel technician Baltimore, MD
- fleet diesel mechanic Baltimore, MD
- senior associate architect Baltimore, MD
- senior dynamics crm developer Baltimore, MD
- senior application security Baltimore, MD




