Diesel Mechanic

Job Title: Diesel Mechanic Job Description
The Diesel Mechanic inspects, diagnoses, and repairs diesel-powered vehicles and heavy machinery, including semi-trucks, buses, and construction equipment. This role uses specialized diagnostic software and a variety of hand tools to perform preventative maintenance, overhaul engines, and repair complex systems such as transmissions, air brakes, and hydraulic systems.
Responsibilities

• Inspect diesel-powered vehicles and heavy equipment to identify mechanical and electrical issues.
• Diagnose problems in engines, transmissions, air brake systems, hydraulic systems, and related components using diagnostic software and tools.
• Perform preventative maintenance on diesel engines and associated systems to ensure safe and reliable operation.
• Repair and overhaul diesel engines, including disassembly, replacement of worn parts, and reassembly to manufacturer specifications.
• Service and repair complex systems such as transmissions, air brakes, and hydraulic components on trucks, buses, and construction equipment.
• Use specialized diagnostic software to read fault codes, analyze performance data, and confirm repair effectiveness.
• Utilize hand tools and power tools safely and efficiently to complete mechanical and electrical repairs.
• Test repaired vehicles and equipment to verify proper operation and compliance with performance standards.
• Maintain accurate records of inspections, diagnoses, repairs, and maintenance performed.
• Follow safety procedures and best practices while working with heavy equipment, diesel fuel, and electrical systems.

Essential Skills

• Strong hands-on experience working with diesel engines and diesel-powered vehicles or heavy machinery.
• Proficiency in troubleshooting mechanical, hydraulic, and electrical issues on diesel equipment.
• Ability to diagnose and repair diesel engine problems using specialized diagnostic software and tools.
• Skilled in performing diesel maintenance, including routine service and preventative maintenance tasks.
• Knowledge of hydraulic systems and their components, including the ability to inspect, service, and repair them.
• Understanding of electrical systems in diesel vehicles and equipment, with the ability to identify and fix faults.
• Ability to service and repair complex systems such as transmissions and air brakes.
• Competence in using a wide range of hand tools and power tools safely and effectively.
• Attention to detail and accuracy when inspecting equipment and documenting work performed.

Additional Skills & Qualifications

• Experience working on semi-trucks, buses, and construction equipment is highly beneficial.
• Familiarity with industry-standard diagnostic software for diesel engines and vehicle systems.
• Ability to read and interpret technical manuals, diagrams, and repair procedures.
• Strong problem-solving skills and the ability to work independently on complex mechanical issues.
• Commitment to following safety regulations and best practices in a workshop or field environment.

Why Work Here?
Join a team that values technical expertise, safety, and high-quality workmanship. You will work with diverse diesel-powered vehicles and heavy machinery, offering opportunities to deepen your mechanical, hydraulic, and electrical skills. The environment supports professional growth through hands-on experience with advanced diagnostic tools and complex systems, while promoting a culture of reliability, responsibility, and pride in keeping critical equipment running smoothly.
Work Environment
This role operates in a workshop or field setting where diesel-powered vehicles and heavy machinery such as semi-trucks, buses, and construction equipment are serviced. You will regularly use specialized diagnostic software, hand tools, and power tools to inspect, maintain, and repair engines, transmissions, air brakes, hydraulic systems, and electrical components. The work involves standing, bending, and working around large equipment, with adherence to safety procedures and the use of appropriate protective gear. Hours and shifts may vary based on maintenance schedules and repair needs, and the environment focuses on safe, efficient, and organized repair operations.
Job Type & Location
This is a Permanent position based out of Nicholasville, KY.
Pay and Benefits
The pay range for this position is $60000.00 - $65000.00/yr.
Individual compensation offered for this position within this range will depend on many factors, including qualifications, skills, relevant experience, job knowledge, geographic location, internal equity, and other pertinent job-related factors.
Competitive pay, comprehensive health, dental, vision, life, and disability insurance coverage, retirement benefits, paid training opportunities, paid time off, and opportunities for career growth and advancement. Employees also benefit from working for an organization dedicated to serving the community and improving mobility throughout the region.
Workplace Type
This is a fully onsite position in Nicholasville,KY.
Application Deadline
This position is anticipated to close on Aug 28, 2026.

About Aerotek

Aerotek® Inc. provides staffing and services solutions in manufacturing, logistics, construction, aviation, facilities and maintenance. We provide the expertise, solutions and people required to rise to the challenges of North American industry. Headquartered in Hanover, Md., Aerotek operates a unified network of over 200 offices across North America, supporting more than 18,000 clients each year. Aerotek is an Allegis Group company, the global leader in workforce and business solutions. To learn more, visit: Aerotek.com | 1-888-AEROTEK.


Aerotek offers weekly pay, employee benefits including medical, dental & vision, life insurance, health advocacy and employee assistance programs, a 401(k) plan, and employee discounts.


The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

San Francisco Fair Chance Ordinance:
Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.

Massachusetts Lie Detector:
It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Use of Artificial Intelligence (AI):
We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.