Fleet Diesel Mechanic: Trucks, Trailers & Equipment

Magnolia Plumbing, Inc; Hyattsville (MD); Hybrid; USD 52,000 - 76,000; Full time

Benefits offered by this job

Medical benefits starting the first of

Company-paid life insurance and long‑/

401(k) and HSA contributions

Employee Assistance Program (EAP) and

Basic Life Insurance Policy

Paid time off (PTO) from day one

Safety Incentive bonus

Job summary

Magnolia Plumbing, Inc. in Laurel, MD, is seeking an experienced Diesel Mechanic to maintain and repair our fleet of commercial vehicles, vacuum trucks, and heavy equipment. You will diagnose mechanical issues, perform preventative maintenance, and ensure all work is safe and up to company standards.

The ideal candidate has at least two years of diesel or fleet repair experience, a valid driver's license, and the ability to lift up to 75 pounds. CDL and ASE certifications are preferred.

Qualifications

• High school diploma or GED required.
• Minimum 2 years as diesel/fleet/heavy equipment mechanic.
• Experience diagnosing and repairing diesel engines and commercial vehicles.
• Knowledge of hydraulic, electrical, brake, suspension, and drivetrain systems.
• Experience on trucks, trailers, utility vehicles, or construction equipment preferred.
• Valid driver's license required.
• CDL and ASE certifications preferred but required.
• Ability to lift up to 75 pounds and perform physically demanding work.
• Ability to use diagnostic tools and troubleshoot mechanical issues.

Responsibilities

• Perform preventative maintenance and repairs on diesel-powered vehicles, trucks, trailers, and equipment.
• Diagnose and troubleshoot diesel engines, electrical systems, hydraulic systems, and mechanical issues.
• Perform repairs including brakes, suspension, steering, engines, transmissions, and other vehicle components.
• Inspect vehicles and equipment to identify maintenance needs and potential safety concerns.
• Complete scheduled maintenance, repairs, and emergency service requests as needed.
• Maintain accurate maintenance records and repair documentation.
• Communicate repair needs, equipment status, and recommendations with management.
• Ensure all work is completed safely and according to company standards.
• Maintain a clean, organized, and safe work environment.

Skills

Attention to detail

Problem solving

Independence

Physical strength

Diagnostic tools usage

Education

High school diploma or GED

CDL and ASE certifications

Tools

Diagnostic tools

Job description

Description

About Magnolia Plumbing, LLC

For over 75 years, Magnolia Plumbing, LLC has proudly served the DC metropolitan area, delivering reliable solutions for both residential and commercial customers across heating and cooling (HVAC), plumbing, wastewater management, and underground site utility work.

We believe the best service starts with the best people, so we hire the best and invest in their success.

Magnolia Plumbing, Inc.’s Laurel-based office is seeking a knowledgeable and experienced Diesel Mechanic to join our team. The Diesel Mechanic will be responsible for maintaining and repairing Magnolia’s fleet of commercial vehicles, vacuum/scavenger trucks, diesel engines, work vans, SUVs, and sedans. This role plays an important part in ensuring our vehicles and equipment remain safe, reliable, and ready to support daily operations.

Responsibilities

• Perform preventative maintenance and repairs on diesel-powered vehicles, trucks, trailers, and equipment.
• Diagnose and troubleshoot diesel engines, electrical systems, hydraulic systems, and mechanical issues.
• Perform repairs including brakes, suspension, steering, engines, transmissions, and other vehicle components.
• Inspect vehicles and equipment to identify maintenance needs and potential safety concerns.
• Complete scheduled maintenance, repairs, and emergency service requests as needed.
• Maintain accurate maintenance records and repair documentation.
• Communicate repair needs, equipment status, and recommendations with management.
• Ensure all work is completed safely and according to company standards.
• Maintain a clean, organized, and safe work environment.

Requirements

• High school diploma or GED preferred.
• Minimum of 2 years of experience as a diesel mechanic, fleet mechanic, or heavy equipment mechanic.
• Experience diagnosing and repairing diesel engines and commercial vehicles.
• Knowledge of hydraulic, electrical, brake, suspension, and drivetrain systems.
• Experience working on trucks, trailers, utility vehicles, or construction equipment preferred.
• Ability to use diagnostic tools and troubleshoot mechanical issues.
• Valid driver's license required.
• CDL and ASE certifications preferred but required.
• Strong attention to detail, problem-solving skills, and ability to work independently.
• Ability to lift up to 75 pounds and perform physically demanding work.

Benefits & Culture

• Medical benefits starting the first of the month, plus company-paid life insurance and long-term disability.
• Company contributions to 401(k) and HSA.
• Company-paid Employee Assistance Program (EAP) and mental health coverage.
• Company-paid Basic Life Insurance Policy.
• Paid time off (PTO) available from day one.
• Empowered environment: we trust you to own your work.
• Opportunity to pursue trade school and ongoing professional development.
• Safety Incentive bonus.