Fleet Diesel Mechanic

Fleet Diesel Mechanic

Location: Gillette, WY
Pay: $30–$40 per hour, based on experience + Overtime
Schedule: Monday–Friday | 5:00 AM – 5:00 PM
Benefits: Medical, Dental, Vision

On behalf of our client, we are seeking an experienced Fleet Diesel Mechanic to join a growing team in Gillette, Wyoming. This is a hands-on shop position focused on diagnosing, repairing, and maintaining the company's fleet of diesel trucks, semi-trucks, trailers, and support vehicles
.

The goal is simple: when a truck leaves the shop, it needs to be safe, reliable, and ready to work. You'll be responsible for troubleshooting mechanical issues, completing repairs, and staying ahead of preventative maintenance to help minimize downtime across the fleet.

This position is primarily focused on diesel trucks and fleet vehicles rather than large heavy construction equipment
. There may be opportunities to work on smaller support equipment such as pumps, light plants, forklifts, and similar equipment as needed.

We're looking for a strong mechanic first. Previous leadership experience is not required
. For someone interested in growing professionally, there may be opportunities to take on additional leadership responsibilities over time.

• Diagnose, troubleshoot, maintain, and repair diesel trucks, semi-trucks, trailers, and support vehicles.
• Work on fleet equipment including Peterbilt, Kenworth, Freightliner, Western Star, and similar trucks.
• Diagnose and repair:
  • Diesel engines
  • Transmissions and drive trains
  • Electrical systems
  • Air and brake systems
  • Steering and suspension components
  • Fuel systems
  • Hydraulic systems
• Perform repairs and maintenance on smaller support equipment such as pumps, light plants, forklifts, and similar equipment as needed.
• Use diagnostic equipment, service manuals, schematics, and wiring diagrams to identify and resolve mechanical and electrical issues.

• Perform scheduled preventative maintenance to keep fleet vehicles reliable and road-ready.
• Complete oil and fluid changes, filter replacements, lubrication, and routine services.
• Perform vehicle and equipment inspections.
• Complete or support DOT inspections and required fleet maintenance.
• Identify potential problems before they result in breakdowns or unnecessary downtime.
• Ensure repairs are completed thoroughly and with a strong attention to quality.

• Accurately document repairs, inspections, parts used, and preventative maintenance completed.
• Assist with parts identification and ordering as needed.
• Maintain a clean, safe, and organized work area.
• Follow company safety procedures, including proper PPE and lockout/tagout practices.
• Work collaboratively with other mechanics and operations personnel to prioritize repairs and keep the fleet moving.
• Participate in required safety meetings and training.
• Provide and maintain personal mechanic hand tools required to perform the job.

• 2+ years of professional experience repairing diesel trucks, semi-trucks, fleet vehicles, or similar equipment; 3–5+ years preferred
• Strong diesel mechanical knowledge and diagnostic ability
• Experience troubleshooting and repairing diesel engines, transmissions, electrical systems, brakes, steering, suspension, fuel systems, and/or hydraulics
• Ability to read and interpret service manuals, schematics, and wiring diagrams
• Strong mechanical troubleshooting and problem-solving skills
• Attention to detail and commitment to completing repairs correctly
• Ability to work independently and as part of a shop team
• Ability to prioritize work in a fast-paced maintenance environment
• Must supply and maintain personal mechanic hand tools
• Must be able to meet company drug and…