Diesel Mechanic - 1099 Contractor

Terrestris Global Solutions • Whitefish, MT

4d • Onsite

About The Position

Are you looking for a Challenge? Looking for an innovative organization and the opportunity to learn and grow professionally? We can help! We are seeking a Diesel Mechanic to provide vehicle fleet maintenance in support of Terrestris’ ongoing ground operations in Whitefish, MT. This is a field-based, traveling role with work performed at customer locations, job sites, or roadside environments. Exposure to noise, grease, fuel, and heavy machinery is likely. 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. As the 1099 Contractor / Consultant Diesel Mechanic, you will be responsible for diagnosing, repairing, and maintaining diesel-powered vehicles and equipment at multiple customer or company locations. Fleet vehicles include refrigerated trucks, buses, and fuel trucks. This role requires the ability to work independently in the field while delivering high-quality mechanical support, minimizing downtime, and ensuring safety and compliance with all applicable regulations.

Requirements

• The ability to work in the U.S. permanently without sponsorship.
• High school diploma or GED; technical or trade school training preferred.
• A minimum of 3–5 years of hands-on experience as a diesel mechanic or heavy equipment technician.
• Strong knowledge of diesel engine systems (Cummins, Caterpillar, Detroit, Volvo, etc.).
• Experience with electronic diagnostics, hydraulic systems, and electrical troubleshooting.
• Valid driver’s license and clean driving record.
• Ability to travel to required location(s) with minimal notice or lead time.
• Ability to travel extensively (often 70–90% travel) and work flexible hours.
• Strong problem-solving skills and ability to work independently in the field.
• Ability to lift up to 75 lbs.
• Ability to work in varying weather conditions and confined or industrial environments.
• Ability to stand, kneel, climb, and work under equipment for extended periods.

Nice To Haves

• Cold-weather maintenance experience.
• ASE Diesel Certifications (or equivalent).
• CDL (Class A or B).
• Ability to safely and efficiently tow vehicles.
• Experience supporting fleets, construction equipment, generators, or military/federal assets.
• Familiarity with telematics and fleet management systems.

Responsibilities

• Travel to customer sites, job sites, or company facilities to perform on-site diagnostics, maintenance, and repairs on diesel engines and related systems.
• Inspect, troubleshoot, and repair diesel engines, transmissions, brakes, steering, suspension, electrical, and hydraulic systems.
• Perform preventative maintenance services to ensure equipment reliability and reduce unexpected failures.
• Use diagnostic tools, software, and technical manuals to identify mechanical and electronic issues.
• Document all work performed, including service reports, parts used, and labor hours.
• Communicate clearly with customers, supervisors, and dispatch regarding repair status, timelines, and recommendations.
• Maintain service vehicle, tools, and inventory in a clean and operational condition.
• Ensure compliance with DOT, OSHA, EPA, and company safety standards.
• Provide emergency or after-hours service support as required.
• Assist with equipment commissioning, inspections, or field upgrades when needed.

Benefits

• We offer outstanding benefits including health, life, disability, financial, and retirement benefits, as well as paid leave, professional development, tuition assistance, and work-life programs.
• Our award programs acknowledge employees for exceptional performance and superior demonstration of our service standards.
• Full-time and part-time employees working at least 20 hours a week on a regular basis are eligible to participate in our benefit programs.
• Other offerings may be provided for employees not within this category.

What This Job Offers

• Career Level: Mid Level
• Education Level: High school or GED