Fleet Vehicle Mechanic

Terrestris Global Solutions • Hattiesburg, MS

23h • Onsite

About The Position

At Terrestris, we leverage technology to create better mission outcomes through better human performance. We form strong client and team relationships through transparency and strive to create an environment where our team can let their excellence shine through. By finding, developing, and incorporating new ideas, we provide memorable services. Rooted in the USMC values of honor, courage, and commitment, Terrestris seeks to deliver extraordinary value to the American people by helping the Government become more efficient and effective. The Fleet Vehicle Mechanic is responsible for the inspection, maintenance, and repair of a diverse fleet of assets, including light- and heavy-duty vehicles, including gasoline and diesel engines, buses, 4x4 trucks and SUV's, fuel box trucks, vans, and forklifts. This role is critical to maintaining operational readiness by ensuring all vehicles and equipment are safe, reliable, and compliant with applicable regulations. The ideal candidate has strong mechanical experience across diesel and gasoline engines, as well as refrigeration and material handling equipment.

Requirements

• High school diploma or equivalent (Technical or Trade School preferred)
• 3+ years of experience as a fleet, diesel, or heavy equipment mechanic
• Experience working on a mixed fleet (light/heavy vehicles, buses, forklifts, or similar)
• Strong knowledge of diesel and gasoline engines, electrical systems, and hydraulics
• Ability to read and interpret technical manuals, schematics, and diagrams
• Proficiency with diagnostic tools and repair equipment
• Valid driver’s license (CDL preferred or ability to obtain)
• Ability to lift 50+ lbs and work in indoor/outdoor environments

Nice To Haves

• ASE Certifications (e.g., T-Series, Medium/Heavy Truck, or Equipment certifications)
• Forklift maintenance certification or OEM training
• Experience supporting government contracts or regulated fleet operations
• Familiarity with fleet maintenance management systems

Responsibilities

• Perform preventive maintenance, troubleshooting, and repair on light- and heavy-duty vehicles (gasoline and diesel engines)
• Maintain and repair buses, vans, and commercial fleet vehicles
• Inspect, diagnose, and service fleet vehicles, ensuring compliance with safety and environmental standards.
• Conduct maintenance and repairs on forklifts and material handling equipment (diesel-powered)
• Diagnose mechanical, electrical and hydraulic system issues using diagnostic tools
• Perform brake, suspension, transmission, and engine repairs
• Conduct DOT inspections and ensure all fleet assets meet federal, state, and local compliance requirements
• Respond to emergency breakdowns and perform field repairs as needed
• Maintain accurate maintenance logs, service records, and parts inventory
• Coordinate with fleet management to schedule preventive maintenance and minimize downtime
• Adhere to all company safety policies and procedures, including hazardous material handling (fuel systems)
• Clean and prepare vehicle for use by customers
• Support mobile or deployed operations as required

Benefits

• health, financial, and retirement benefits
• paid leave
• professional development
• tuition assistance
• work-life programs
• award programs acknowledge employees for exceptional performance and superior demonstration of our service standards

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: High school or GED