ZipRecruiter

Log In

1

Diesel Engineer Jobs in Illinois (NOW HIRING)

Roubij A Inc

DIESEL MECHANIC

Rochelle, IL · On-site

$22 - $35/hr

... Engineering (Optional). o ASE Diesel Certification (Preferred). o Valid driver's license required (CDL preferred) o Aptitude for mathematics and science. o Advanced knowledge of diesel engine ...

Roubij A Inc

DIESEL MECHANIC

Rochelle, IL · On-site

$22 - $35/hr

... Engineering (Optional). o ASE Diesel Certification (Preferred). o Valid driver's license required (CDL preferred) o Aptitude for mathematics and science. o Advanced knowledge of diesel engine ...

Roubij A Inc

DIESEL MECHANIC

Rochelle, IL · On-site

$22 - $35/hr

... Engineering (Optional). o ASE Diesel Certification (Preferred). o Valid driver's license required (CDL preferred) o Aptitude for mathematics and science. o Advanced knowledge of diesel engine ...

Beverly Companies

Be Seen First

Diesel Mechanic

Markham, IL · On-site

$80K - $100K/yr

We are currently members of BOMA/Suburban, BOMA/Chicago, Landscape Illinois, IREM, SIMA, MPBHBA, & Chief Engineer. The Diesel Mechanic will report to the Equipment Manager. This position will be ...

next page

Showing results 1-20

All JobsDiesel Engineer JobsDiesel Engineer Jobs in Illinois

Diesel Engineer information

See Illinois salary details

$5

$38

$50

How much do diesel engineer jobs pay per hour?

As of Aug 27, 2026, the average hourly pay for diesel engineer in Illinois is $38.51, according to ZipRecruiter salary data. Most workers in this role earn between $31.68 and $43.80 per hour, depending on experience, location, and employer.

What is a diesel engineer?

Diesel Engineers are specialized professionals who design, maintain, repair, and oversee diesel engines and related systems. They work with a variety of diesel-powered equipment, such as trucks, buses, ships, generators, and heavy machinery. Their responsibilities typically include diagnosing engine problems, performing routine maintenance, ensuring compliance with safety standards, and sometimes upgrading engine systems for better efficiency. Diesel Engineers may work in industries like transportation, construction, agriculture, or energy, and often need strong mechanical skills and knowledge of diesel engine technology.

What does a diesel engineer do?

The duties of a diesel engineer or mechanic are to inspect, maintain, and repair diesel engines. They perform diagnostics on engines and inspect the parts and system machinery to determine what service is required on the vehicle. A diesel engineer regularly utilizes diagnostic equipment and other tools, and they should have an in-depth knowledge of the diesel electrical system. Customer service skills are also important when describing a repair to a customer.

What are the key skills and qualifications needed to thrive as a diesel engineer, and why are they important?

To thrive as a Diesel Engineer, you need strong mechanical aptitude, knowledge of diesel engine systems, and typically a degree or diploma in mechanical or automotive engineering. Familiarity with diagnostic tools, engine management software, and industry certifications such as ASE Diesel Certification are often required. Problem-solving ability, attention to detail, and effective communication are standout soft skills in this role. These skills ensure accurate diagnostics, efficient repairs, and reliable engine performance in various industrial and transportation settings.

What are some typical challenges diesel engineers face when working on large-scale projects?

Diesel Engineers working on large-scale projects often encounter challenges such as coordinating with multidisciplinary teams, troubleshooting complex engine issues under tight deadlines, and ensuring compliance with strict environmental and safety regulations. Effective communication and adaptability are crucial, as project requirements may change and unexpected technical problems can arise. Additionally, staying up-to-date with advancements in diesel technology and emission standards is essential for success in this dynamic field.

What is the difference between Diesel Engineer vs Mechanical Engineer?

AspectDiesel EngineerMechanical Engineer
CertificationsRelevant certifications in diesel systems, such as ASE or manufacturer-specific trainingEngineering degrees, often a Bachelor's in Mechanical Engineering
Work EnvironmentWorkshops, repair facilities, and on-site at transportation or industrial companiesDesign offices, manufacturing plants, or research labs
Industry UsageTransportation, maritime, and industrial sectors focusing on diesel enginesBroad industry applications including automotive, aerospace, manufacturing, and energy

Diesel Engineers specialize in maintaining and repairing diesel engines, often requiring specific certifications and working in hands-on environments. Mechanical Engineers have a broader scope, focusing on design, analysis, and development across various engineering fields. While both roles require engineering knowledge, Diesel Engineers focus more on practical maintenance within specific industries, whereas Mechanical Engineers are involved in design and innovation across multiple sectors.

How much do diesel engineers get paid?

Diesel engineers typically earn a median annual salary of around $50,000 to $70,000, depending on experience, location, and certifications. Skilled diesel engineers with specialized knowledge of engines and maintenance procedures can earn higher wages, especially in industrial or transportation sectors.
More about Diesel Engineer jobs

What are popular job titles related to Diesel Engineer jobs in Illinois?

For Diesel Engineer jobs in Illinois, the most frequently searched job titles are:

What job categories do people searching Diesel Engineer jobs in Illinois look for?

The top searched job categories for Diesel Engineer jobs in Illinois are:

What are popular job titles related to Diesel Engineer jobs in IL?

For Diesel Engineer jobs in IL, the most frequently searched job titles are:

Diesel Engineer jobs near you
Infographic showing various Diesel Engineer job openings in Illinois as of August 2026, with employment types broken down into 95% Full Time, 2% Part Time, and 3% Contract. Highlights an 85% Physical, 6% Hybrid, and 9% Remote job distribution, with an average salary of $80,111 per year, or $38.5 per hour.

DIESEL MECHANIC

Roubij A Inc

Rochelle, IL • On-site

$22 - $35/hr

Full-time

This job post has expired today. Applications are no longer accepted.

Job description

JOB SUMMARY:
The Standard Diesel Mechanic will perform repair work and maintenance for over the road semi-trucks, trailers, and other diesel vehicles.  
    DIESEL MECHANIC RESPONSIBILITIES:
o   Running diagnostic tests on trucks, including refrigeration systems.
o   Analyzing diagnostic test results.
o   Replacing steering mechanisms, transmissions, and braking systems.
o   Checking vehicle lighting systems.
o   Test driving vehicles to gauge performance.
o   Performing preventative maintenance on semi-trucks.
o   Maintaining detailed records of serviced vehicles.
o   Adhering to an inspection procedure checklist. 
o   Ensuring the cleanliness of the shop.
o   Most of our work is Cummins and Detroit Diesel and Freightliner
o   Carrier and Thermo King refrigerated units
o   We do some trailer body work, but extremely limited
o   We work on trailers suspensions, dolly legs, etc.
o   Welding – both aluminum and iron
 
    DIESEL MECHANIC REQUIREMENTS:
o   Degree or Diploma in Mechanical or Automotive Engineering (Optional).
o   ASE Diesel Certification (Preferred).
o   Valid driver’s license required (CDL preferred)
o   Aptitude for mathematics and science.
o   Advanced knowledge of diesel engine components.
o   Good IT and diagnostic skills. Preferred knowledge of Cummins and Freightliner diagnostic systems.
o   Physically fit and able to lift 100-150 pounds or more.
o   Proficiency with maintenance and repair tools.
o   Attention to detail.
o   Good interpersonal skills.
o   Excellent verbal communication and written skills.
o   Must own tools for the trade.
 
   Benefits:
o   Benefits become available after a 90-day probationary period.
o   Rochelle RTC pays for 50% of the insurance premiums – Employee is responsible for the other 50%.
o   Flexible Schedule