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

About the Role

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.

Key Responsibilities

Diesel Truck & Fleet Maintenance
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 drivetrains
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.
Preventative Maintenance & Inspections
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.
Shop & Safety Responsibilities
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.
Required Qualifications
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 alcohol testing requirements

Preferred Qualifications

Experience working on
Peterbilt, Kenworth, Freightliner, Western Star, Cummins, Detroit, CAT, or similar trucks and diesel engines
Technical training in diesel technology, medium/heavy truck repair, automotive technology, or a related field
CDL
ASE Medium/Heavy Truck certifications
Experience performing DOT inspections
Experience using electronic diagnostic software and maintenance/work-order systems
Basic welding and fabrication experience
Interest in mentoring others or growing into future leadership responsibilities
Equivalent hands-on work experience may be considered in place of formal certifications or technical education.
Work Environment
Work is performed primarily in a maintenance shop with occasional outdoor work as needed.
Regular exposure to diesel equipment, noise, vibration, dust, grease, fumes, and varying temperatures.
Monday–Friday schedule with regular overtime.
This is a hands-on mechanical position requiring regular work around trucks, trailers, tools, and shop equipment.
Physical Requirements
Ability to lift and carry 50–75 lbs regularly and up to 100 lbs with assistance
Frequent standing, walking, bending, kneeling, climbing, reaching, and working around vehicles and equipment
Ability to work in confined spaces and awkward positions when completing repairs
Manual dexterity to safely operate hand tools, power tools, and diagnostic equipment
Why Join Our Team
$30–$40/hour based on experience
Regular overtime opportunities
Medical, dental, and vision benefits
Monday–Friday schedule
Stable opportunity with a growing company
Opportunity to expand your skills and grow into additional responsibilities over time
Team environment focused on safety, quality workmanship, and keeping equipment running
If you're an experienced diesel truck or fleet mechanic who takes pride in diagnosing problems, making quality repairs, and keeping trucks on the road, we'd like to hear from you.
Posting Statement
All qualified applicants will receive consideration for employment without regard to race, color, religion, religious creed, sex, national origin, ancestry, age, physical or mental disability, medical condition, genetic information, military and veteran status, marital status, pregnancy, gender, gender expression, gender identity, sexual orientation, or any other characteristic protected by local law, regulation, or ordinance.