Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Diesel Fleet Mechanic

Lonergan's Charter Services

Job Description

Job Description

Please note; this role is based in Millersville!

Diesel Fleet Mechanic

Up to Top Industry Pay | Full-Time | Overtime Available | Modern Indoor Shop

Lonergan’s Charter Service, Inc. is looking for an experienced Diesel Fleet Mechanic to join our growing maintenance team. We’re a family-owned company that has been serving Maryland since 1959, and we take pride in maintaining one of the area’s premier commercial bus fleets.

If you’re a skilled diesel technician who enjoys diagnosing problems, performing quality repairs, and working in a clean, well-equipped shop, we’d like to meet you.

Responsibilities

  • Diagnose and repair heavy-duty diesel buses and commercial vehicles.
  • Perform preventive maintenance and scheduled inspections.
  • Troubleshoot engine, electrical, air brake, suspension, steering, HVAC, and drivetrain systems.
  • Complete repairs accurately and efficiently while maintaining high safety standards.
  • Work with the maintenance team to keep our fleet safe, reliable, and road-ready.

Qualifications

  • Experience as a diesel mechanic or heavy-duty fleet technician.
  • Strong diagnostic and troubleshooting abilities.
  • Experience working on heavy-duty diesel vehicles.
  • Valid driver’s license required.
  • CDL is preferred but not required.
  • Must provide your own industry-appropriate tools.
  • Strong work ethic with attention to detail.
  • Ability to work independently and as part of a team.

What We Offer

  • Industry-leading pay based on experience and qualifications
  • Full-time, year-round employment
  • Overtime opportunities
  • 401(k) retirement plan
  • Health, dental, and vision insurance
  • Paid holidays and paid time off
  • Clean, modern indoor shop
  • Well-maintained fleet and quality equipment
  • Stable family-owned company with over 65 years of success
  • Opportunities for advancement as our company continues to grow

Join Our Team

If you’re looking for more than just another mechanic job and want to build a long-term career with a company that values its employees and invests in its fleet, we’d love to hear from you.

Apply today and become part of the Lonergan’s Charter Service team!

Company Description

Lonergan’s Charter Service has been a family-owned and operated transportation company since 1959. The company was founded by John J. Lonergan Sr., and in 2005, after decades of dedicated leadership, he retired and passed the torch to his son, Greg Lonergan, who had been with the company since 1996 and now serves as President.

John’s grandson, Mike Lonergan Jr.—Greg’s nephew—joined the company in 2006 and now serves as Vice President. Dee Lawson, our Operations Manager, has been with us since 2009. Crystal Heitzer, our Dispatcher, joined in 2023, and Juli Taylor, our Office and Human Resources Manager, has been part of the team since 2022.

We are also proud to recognize additional members of our leadership and support staff:

Lakesha Matthews, our Shop Administrator, has been an essential part of the company since 2003.
Our experienced Team Leads—Dimitria White, Kim Spriggs, Tammy McDevitt-Warfield, Shermeen Collins, Dina Monsalve, Anne Marie Robinette, and Cherbilia Chapman—bring a wealth of knowledge to the company. They play a vital role in training new drivers, assisting current staff, and supporting management operations.
Skip Humelsine, our Safety Manager, has been with the company since 2011 and is instrumental in ensuring that our safety standards remain exceptional.

Lonergan’s Charter Service proudly employs over 100 team members, including highly trained and dedicated drivers, bus attendants, office staff, and mechanics. Safety has always been our number one priority. We operate trusted, well-maintained equipment, supported by a staff of certified and highly skilled mechanics led by Lead Mechanic Kent Wilson, who has been with us since 2009. Our maintenance team works tirelessly to ensure our vehicles stay safe, reliable, and road-ready for the employees, customers, and students who depend on us every day.

At Lonergan’s Charter Service, we truly are a family. Every employee is part of that family, and when our customers ride with us, they become part of it as well. Whether you are looking to book transportation or are interested in joining our team, we invite you to explore our site and learn more about what makes Lonergan’s a trusted name in transportation.

Company Description

Lonergan’s Charter Service has been a family-owned and operated transportation company since 1959. The company was founded by John J. Lonergan Sr., and in 2005, after decades of dedicated leadership, he retired and passed the torch to his son, Greg Lonergan, who had been with the company since 1996 and now serves as President.\r\n\r\n\r\n\r\nJohn’s grandson, Mike Lonergan Jr.—Greg’s nephew—joined the company in 2006 and now serves as Vice President. Dee Lawson, our Operations Manager, has been with us since 2009. Crystal Heitzer, our Dispatcher, joined in 2023, and Juli Taylor, our Office and Human Resources Manager, has been part of the team since 2022.\r\n\r\n\r\n\r\nWe are also proud to recognize additional members of our leadership and support staff:\r\n\r\nLakesha Matthews, our Shop Administrator, has been an essential part of the company since 2003.\r\nOur experienced Team Leads—Dimitria White, Kim Spriggs, Tammy McDevitt-Warfield, Shermeen Collins, Dina Monsalve, Anne Marie Robinette, and Cherbilia Chapman—bring a wealth of knowledge to the company. They play a vital role in training new drivers, assisting current staff, and supporting management operations.\r\nSkip Humelsine, our Safety Manager, has been with the company since 2011 and is instrumental in ensuring that our safety standards remain exceptional.\r\n\r\n\r\nLonergan’s Charter Service proudly employs over 100 team members, including highly trained and dedicated drivers, bus attendants, office staff, and mechanics. Safety has always been our number one priority. We operate trusted, well-maintained equipment, supported by a staff of certified and highly skilled mechanics led by Lead Mechanic Kent Wilson, who has been with us since 2009. Our maintenance team works tirelessly to ensure our vehicles stay safe, reliable, and road-ready for the employees, customers, and students who depend on us every day.\r\n\r\n\r\n\r\nAt Lonergan’s Charter Service, we truly are a family. Every employee is part of that family, and when our customers ride with us, they become part of it as well. Whether you are looking to book transportation or are interested in joining our team, we invite you to explore our site and learn more about what makes Lonergan’s a trusted name in transportation.

Vacancy posted 2 days ago
Similar jobs that could be interesting for youBased on the Diesel Fleet Mechanic in Bowie, MD vacancy
  • $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...  ...work orders, maintaining maintenance records, and ensuring fleet vehicles are safe and operational. Mechanics must follow... 
    Fleet
    Hourly pay
    Full time
    Relocation package
    Shift work
    Night shift
    Afternoon shift

    Waste Management

    Bowie, MD
    2 days ago
  •  ...Diesel Mechanic Abacus is looking to hire a diesel mechanic in the Beltsville, MD area. Your Key Responsibilities Technical excellence...  ...for more than a technician; we are looking for a future Fleet Manager. This position is designed for an ambitious professional... 
    Fleet

    Abacus

    Beltsville, MD
    4 days ago
  •  ...Job Title An entry-level diesel mechanic who prioritizes safety and time management. An individual who is coachable and eager to learn....  ...Responsibilities: Perform basic preventative maintenance on the fleet. Use diagnostic tools to test vehicle components. Upkeep... 
    Fleet
    Shift work

    Sun Services, LLC

    Beltsville, MD
    3 days ago
  •  ...Fleet Maintenance Technician To provide safe, reliable and cost-efficient vehicles by performing quality preventive maintenance...  ...systems, brake systems, HVAC systems and lift-gate hydraulic, mechanical and electrical systems. Follow procedures including documenting... 
    Fleet
    Work at office
    Local area
    Night shift
    Afternoon shift

    Sysco

    Jessup, MD
    4 days ago
  •  ...Description Job Description Bay Ready Mix is actively seeking skilled diesel mechanics to join our dynamic team in the Jessup, Maryland area. This position is essential for maintaining our fleet of medium and heavy-duty trucks, as well as material handling and... 
    Fleet

    Ernest Maier Block

    Bladensburg, MD
    22 days ago
  •  ...Description Job Description Position Overview We are seeking an experienced Diesel Mechanic to inspect, diagnose, repair, and perform preventive maintenance on our heavy-duty fleet, including concrete mixer trucks, dump trucks, flatbeds, tankers, loaders, Moffett... 
    Fleet

    Ernest Maier Block

    Annapolis Junction, MD
    22 days ago
  • $30 - $42 per hour

     ...Baltimore, Laurel, & Belcamp MD are looking for a Mobile Vehicle Mechanic to join their safety conscious team! This position will be...  ...routine maintenance, inspections, and repairing of all company fleet at branch locations throughout the area. Why work for Clean... 
    Fleet
    Full time
    Flexible hours
    Night shift

    Clean Harbors

    Laurel, MD
    1 day ago
  •  ...to-end, cloud-powered system paired with a multi-sized, EV-first fleet that trims student commute times by up to 20%. With more than 8...  ...and A/C expertise. ~ Solid command of core vehicle systems and diesel platforms. ~ Experience across fleet diesel and gasoline... 
    Fleet
    Local area

    Zum Transportation

    Jessup, MD
    7 days ago
  • Columbia Fleet Service has job openings available for a Diesel Mechanic We're looking for honest, dedicated, customer-service oriented people to join our team at Jessup, MD. Applicants are required to be: ~At least 18 years old ~Recipients of a high school diploma or... 
    Fleet
    Temporary work
    Weekend work

    Columbia Fleet Service

    Jessup, MD
    more than 2 months ago
  •  ...Maryland is seeking Military Veterans with mechanical experience who are interested in...  ...areas: • Wheeled vehicle maintenance • Diesel mechanics • Heavy equipment maintenance...  ...maintenance • Generator maintenance • Fleet maintenance • Military maintenance supervision... 
    Fleet
    Full time
    Apprenticeship
    Work experience placement

    Isuzu Veterans Apprenticeship Program (IVAP)

    Hyattsville, MD
    8 days ago
  • $200k - $250k

     ...week worked Drive fewer miles than traditional OTR (most solos average under 85,000 miles annually) Exclusive Owner Operator fleet—we do not hire company drivers or lease-purchase operators Year-round freight No-touch freight Customized 48' and 53' trailers... 
    Fleet

    Clark Transfer

    Bowie, MD
    29 days ago
  • $30 - $40 per hour

     ...Description Job Description A-Level Auto Mechanic (Commercial Roofing Group) A-Level Auto...  ...with heavy equipment (construction, fleet, or similar) Strong knowledge of hydraulics...  ...CDL certification Experience with diesel engines Physical Requirements: ~ Must... 
    Fleet
    Hourly pay
    Ongoing contract
    Full time
    Local area

    Cybercoders

    Bowie, MD
    a month ago
  • $100k

     ...extra 5 CPM (van) or  extra 7 CPM (flatbed) and take home up to $800 more every month!* ~ Dependable trucks : Well-maintained fleet equipped with the latest safety technology ~ Choose Flatbed or 100% no-touch Dry Van freight with 60-80% drop and hook ** ~ Outstanding... 
    Fleet
    Full time
    Immediate start

    Western Express

    Bowie, MD
    1 day ago
  • $80k

     ...Dry Van freight with 60-80% drop and hook * ~$1,000 driver referral bonuses – unlimited! ~ Dependable trucks : Well-maintained fleet equipped with the latest safety technology ~ Excellent Benefits: Health, Dental and Vision + 401k ~ Pet & Rider policies ~ Paid... 
    Fleet
    Full time
    Immediate start

    Western Express

    Bowie, MD
    1 day ago
  • $1,700 per week

     ...more every month!* ~ WEEKLY HOME TIME – Get home every week or stay out for extra money! ~ Dependable trucks : Well-maintained fleet equipped with the latest safety technology ~ Stay moving: 100% no-touch freight and 60-80% drop and hook ! (Dry Van Only) ~$1... 
    Fleet
    Extra income
    Full time
    Immediate start

    Western Express

    Bowie, MD
    1 day ago
  • $28 per hour

     ...Position Description Ryder is hiring a Mobile Maintenance Diesel Technician in Beltsville, Maryland — providing a stable company...  ...-the-Art Diagnostics and Tools to all Ryder Maintenance Repair Mechanics who work on Heavy Duty Vehicles Apply Here with Ryder Today... 
    Hourly pay
    Weekly pay
    Permanent employment
    Full time
    Work experience placement
    Local area
    Monday to Friday
    Shift work
    Day shift

    Ryder

    Beltsville, MD
    5 days ago
  • $25 per hour

     ...Diesel Mechanic Ryder is hiring a Mid-Level Diesel Technician in Landover, Maryland providing a stable company for your career with weekly pay and excellent benefits. Hourly Pay: $25.00 per hour Certification Bonus of $100 for each New ASE Certification Obtained... 
    Hourly pay
    Weekly pay
    Work experience placement
    Day shift

    Ryder

    Hyattsville, MD
    2 days ago
  • $2,250 - $2,500 per week

     ...Reasons to Drive Oakley. Thanks to continued customer growth and new business opportunities, we're expanding our food-grade tanker fleet and offering more run options than ever before. Whether you're an experienced tanker driver or looking to break into tank... 
    Fleet
    Daily paid

    Oakley Transport

    Bowie, MD
    3 days ago
  • $26.45 - $39.7 per hour

     ...chance to make your mark with the world’s largest equipment rental provider, come build your future with United Rentals! As a Diesel Mechanic (Service Tech II), you’ll use your skills to perform maintenance, preventive maintenance and minor repairs of equipment in a... 
    Hourly pay

    United Rentals

    Bladensburg, MD
    7 days ago
  • $29.8 - $44.65 per hour

     ...chance to make your mark with the world's largest equipment rental provider, come build your future with United Rentals! As a Diesel Mechanic (Service Tech III), you'll use your skills to perform maintenance and repairs on complex equipment in a safe and professional... 
    Hourly pay

    American Rental Association

    Bladensburg, MD
    3 days ago
  • $70k - $100k

     ...Assistance Program ~401(k) Match ~ Tuition Reimbursement ~ Pet Insurance ~ Paid Orientation Job Description: Join our fleet as a CDL-A driver and embark on a career filled with opportunities, freedom, and stability. With dedicated and over-the-road routes... 
    Fleet
    Full time
    Temporary work
    Relocation package
    Flexible hours

    U.S. Xpress ADN General

    Bowie, MD
    3 days ago
  • $35 - $40 per hour

     ...Automotive Technician/Mechanic – Hyattsville, MD Potential Bonus up to $2500 $35.00...  ...Full Benefits within 30 Days Amerit Fleet Solutions , a leader in fleet maintenance...  ...shop environment with exposure to dust, diesel fumes, noise, and mechanical materials such... 
    Fleet
    Weekly pay
    Monday to Friday

    Amerit Fleet Solutions

    University Park, MD
    1 day ago
  • $2,500 - $3,500 per week

     ...gross earnings, resulting in a steady average take-home of $2,500 to $3,500+ every week after all expenses are covered.Zero-Risk Elite Fleet: Drive brand-new 2026/2027 models (Peterbilt, Mack, Kenworth, Volvo, Freightliner, or International) under a worry-free, walk-away... 
    Fleet
    Weekly pay

    Apex Prime Freightways Inc

    Bowie, MD
    22 days ago
  • $25 - $48 per hour

     ...Diesel Technician / Mechanic J ohnson Truck Center Landover, MD Technicians typically earn between $25-$48 per hour based on skill level and performance. Top performers may exceed this range based on productivity and experience. Johnson Truck Center, a... 
    Hourly pay
    Temporary work
    Relocation

    Western Branch Diesel

    Hyattsville, MD
    3 days ago
  • $1,740 per month

     ...Bluetooth Functionality • Virgin Tires, No recaps •FREE Passenger Program from day one! •PTO •Pet Program ( We are a pet friendly fleet ) No breed restrictions •Safety Award ProgramAll trucking companies offer a truck, miles and lots of promises. At J.S. Helwig &... 
    Fleet

    JS Helwig and Son LLC

    Bowie, MD
    29 days ago
  • $32 - $42 per hour

     ...Position Summary Automotive Technician/Mechanic – Hyattsville, MD $32.00- $42.00 hr...  ...| Full Benefits within 30 Days  Amerit Fleet Solutions , a leader in fleet maintenance...  ...shop environment with exposure to dust, diesel fumes, noise, and mechanical materials such... 
    Fleet
    Weekly pay
    Monday to Friday

    Amerit Fleet Solutions

    Hyattsville, MD
    3 days ago
  •  ...Mobile Vehicle Mechanic Clean Harbors Baltimore, Laurel and Belcamp, MD is looking for a Mobile Vehicle Mechanic to join their safety...  ...routine maintenance, inspections, and repairing of all company fleet at branch locations throughout the area. Why work for Clean... 
    Fleet
    Full time
    Flexible hours
    Night shift

    CleanHarbors

    Laurel, MD
    1 day ago
  •  ...Auto Services Mechanic The University of Maryland Department of Transportation Services...  ...ensure the safe and reliable operation of our fleet. Responsibilities: Performs...  ...adjusts to both 2-and 4-cycle gasoline and diesel engines. Performs preventive... 
    Fleet
    Seasonal work
    Monday to Friday

    Umcp

    College Park, MD
    4 days ago
  •  ...Job Description Job Description Summary/Objective: The Mechanic is responsible for the proper repair and maintenance of all...  ...QUALIFICATIONS Experience: ~ Experience maintaining and repairing diesel engines. Special Skills: ~ Written communication, verbal... 
    Immediate start
    Shift work

    Chaney Enterprises

    Crofton, MD
    12 days ago
  •  ...sequenced based on service needs; compete for special duty programs, including Executive Services and Instructor tours, after gaining fleet food service experience and strong performance marks. Qualifications All Navy jobs require meeting general enlistment or... 
    Fleet
    Apprenticeship
    Worldwide

    US Navy

    Glenn Dale, MD
    2 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Diesel Fleet Mechanic. Be the first to apply!