Service Technician/Diesel Mechanic

Jx-Enterprise; Mokena (IL); On-site; USD 48,000 - 75,000; Full time

Benefits offered by this job

Competitive compensation package

Job summary

JX Enterprises, Inc. seeks a Service Technician/Diesel Mechanic in Mokena, IL to keep customers' fleets moving. The role requires hands-on diesel repair, diagnostic testing, and adherence to safety standards.

The position offers day-to-day work with a Monday–Friday shift, a 15% differential for off-hours, and opportunities for growth in a family-owned company with 50+ years of history and 1,200+ employees.

Qualifications

• High school diploma or equivalent required.
• Entry level: some experience in automotive repair or heavy-duty truck maintenance.
• Basic mechanical aptitude and willingness to learn required.
• Valid driver’s license required; CDL preferred, or ability to obtain.
• For experienced level: diesel-focused technical school program + 2+ years of maintenance/repair experience.

Responsibilities

• Inspect vehicles and perform diagnostics to determine maintenance needs.
• Test engines, safety, and emissions to ensure regulatory compliance.
• Repair or replace major assemblies and components as needed.
• Evaluate service options to manage costs and optimize solutions.
• Maintain accurate vehicle records of services and repairs.
• Follow safety protocols and keep up with regulations.

Skills

Diesel engine knowledge

Mechanical aptitude

Safety-conscious

Team collaboration

Education

High school diploma or equivalent

Diesel-focused technical school program

Tools

Diagnostic tests

Maintenance procedures

Job description

Description

Your Next Big Career Move: Service Technician/Diesel Mechanic

Join the Driving Force Behind JX Enterprises! Why Choose JX?

At JX Enterprises and Truck Center, we are more than trucks. As a third-generation, family-owned industry leader with over 50 years of history, 30+ locations, and 1,200+ dedicated employees, we know our people are the driving force behind everything we do. We don’t just offer jobs, we build rewarding long-term careers in a supportive, growth-oriented team environment.

When you join JX, you become a part of a culture defined by our values of Honoring Commitments, Creating Positive Experiences, Fostering Lifelong Learning, Exhibiting Pioneering Spirit, and Demonstrating Good Stewardship permeates every aspect of our company. We have a deep commitment to giving back to our local communities through our employee-driven JX Gives Back Family Foundation.

Your Next Big Career Move: Service Technician/Diesel Mechanic located in Mokena, IL

Shift: Monday - Friday 3:30pm - Midnight

Shift Premium: Any work performed/hours worked Monday - Friday, 5:00 pm - 5:59 am and/or any hours worked on weekends (Saturday/Sunday) will be paid a shift differential of 15% of your base wage.

The Opportunity (Job Purpose):

Are you ready to make a visible impact? As our next Service Technician, you will play a crucial role in keeping the customer's fleet moving. We are looking for an energetic, solutions-oriented professional who thrives in a collaborative, fast-paced environment and is eager to grow with us.

What You'll Do Day-to-Day (Essential Duties & Responsibilities):

• Determine vehicle condition by conducting inspections and diagnostic tests to ensure accurate assessments of maintenance needs.
• Complies with federal and state vehicle requirements by testing engine, safety, and combustion control standards, adhering to regulatory obligations.
• Corrects vehicle deficiencies by removing, repairing, adjusting, overhauling, assembling, disassembling, and replacing major assemblies, sub-assemblies, components, or parts, showcasing innovative problem-solving skills and techniques.
• Evaluates service and parts options to contain costs, demonstrating adaptability and resourcefulness in finding effective solutions.
• Controls corrosion and completes winterization procedures to prolong the lifespan of vehicles and ensure responsible use of resources.
• Maintains vehicle records by annotating services and repairs, facilitating transparency and accountability in customer interactions.
• Complies with federal and state vehicle requirements by staying updated on regulations and standards through ongoing education and training.
• Adhere to safety protocols and regulations, ensuring the safety and well-being of yourself, colleagues, and customers.
• Collaborate closely with team members and leadership to continuously cultivate positive experiences for our customers.
• Perform other dynamic duties and responsibilities as assigned to support business

Medical Safety Compliance:

Must successfully pass a baseline medical evaluation and a respiratory fit test (per OSHA standards) to ensure safe use of PPE, and maintain safety-compliance guidelines during daily operations.

Physical and Mental Demands:

The employee is frequently required to bend, squat, kneel, and crawl/lay on back; reach away from body or shoulder height; climb or balance; lift up to 75 pounds; push or pull; working in areas with fumes or airborne particles; vibration.

What We’re Looking For (Qualifications & Skills):

• High school diploma or equivalent required.
• For entry level, some previous experience in automotive repair or heavy-duty truck maintenance is required.
• Basic mechanical aptitude and willingness to learn required.
• Valid driver’s license required; CDL preferred, or ability to obtain.
• Dependable and reliable attendance required.
• For an experienced level, one must have completed a diesel-focused technical school program and 2+ years of experience in maintenance and repair of commercial trucks, including engine diagnostics. Equivalent experience and formal education will be considered.

What’s In It For You? (The Perks & Benefits)

We believe in taking care of our people. JX Enterprises offers a highly competitive compensation package designed to support your health, financial future, and overall well-being.

Ready to Drive Your Career Forward?

If you have a strong work ethic, a passion for learning, and are ready to contribute to a workplace where you are valued, we want to hear from you!

JX Enterprises, Inc. is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability.