Heavy-Duty Diesel Truck Mechanic / Lead Technician

General Information
Name
Heavy-Duty Diesel Truck Mechanic / Lead Technician
Employment Type
Direct Hire
Position level
Full-time
Virtual/Remote?
No
Labor Category
Light Industrial
Date
08-May-2026
City
Bolingbrook
State
Illinois
Country
United States
Ref #

Description & Requirements
Description
Heavy-Duty Diesel Truck Mechanic / Lead Technician
Location: Truck Service Point
Pay: $35.00-$45.00 per hour, based on experience, certifications, and shift assignment
Schedule: Tuesday-Friday, 10:00 AM-6:30 PM, and Saturday, 7:00 AM-3:30 PM
What's next for you? This great job.
Kelly® is hiring a Heavy-Duty Diesel Truck Mechanic / Lead Technician for a direct opportunity with a growing fleet maintenance operation. This is a great fit for an experienced diesel technician who enjoys advanced diagnostics, hands-on repair work, and leading a team in a busy shop environment.
This operation supports both company assets and carrier partners, with a high volume of work currently in process as the team works through backlog. In this role, you'll help oversee a team of approximately 7-8 technicians while keeping daily shop operations moving smoothly. If you like staying busy, solving technical issues, and helping keep fleet operations moving, this could be the right next step.
Why you should apply:
• Competitive pay: $35.00-$45.00 per hour
• Steady schedule with daytime/evening hours
• Lead-level opportunity with hands-on technical work
• Opportunity to oversee and support approximately 7-8 technicians
• Work on Class 7-8 trucks and related fleet equipment
• Support a busy shop with strong operational need and consistent workflow
What you'll be doing:
• Leading, mentoring, and supporting approximately 7-8 technicians in a fast-paced shop environment
• Assigning, prioritizing, and monitoring daily work orders
• Performing advanced diagnostics and repairs on heavy-duty diesel engines, emissions systems, aftertreatment systems, transmissions, drivetrains, suspensions, brakes, electrical systems, and HVAC
• Using diagnostic software such as Cummins Insite, Detroit DiagnosticLink, Bendix ACom, WABCO, Tech Tool, DAVIE4, and other OEM platforms
• Conducting DOT inspections and ensuring equipment meets compliance standards
• Assisting technicians with complex repairs and escalated technical issues
• Supporting preventive maintenance scheduling to maximize fleet uptime
• Communicating repair status, equipment needs, and downtime impacts with leadership and external customers
• Monitoring parts, fluids, and shop supply inventory
• Reviewing and closing work orders for accuracy in labor, parts, and documentation
• Ensuring safe shop practices, PPE use, lockout/tagout procedures, and OSHA/DOT compliance
• Supporting reports related to shop KPIs, equipment conditions, productivity, and operational improvements
This job might be an outstanding fit if you:
• Have 5+ years of experience as a heavy-duty diesel mechanic working on Class 7-8 trucks
• Have 3+ years of management, supervisory, senior technician, or lead technician experience
• Have experience leading or supporting a team of technicians in a shop environment
• Have strong knowledge of diesel engines, air systems, electrical diagnostics, and aftertreatment systems
• Are comfortable troubleshooting with OEM diagnostic software
• Have experience assigning work, training technicians, and supporting shop workflow
• Have a valid driver's license
• Can lift 50+ lbs. and perform physically demanding tasks in a shop environment
• Are safety-focused, organized, and able to manage multiple priorities
Preferred qualifications:
• CDL Class A or B
• ASE Medium/Heavy Truck Certifications, such as T2, T4, T5, T6, T7, or L2
• Experience with fleet maintenance software such as Fleetrock, TMT, or similar systems
Key strengths for success:
• Leadership and teamwork
• Strong diagnostic and problem-solving ability
• Clear communication and accurate documentation
• Safety-first mindset
• Time management and workflow prioritization
• Ability to support both hands-on repair work and shop operations
Apply today and take the next step in your diesel technician career with Kelly®.
As part of our promise to talent, Kelly supports those who work with us through a variety of benefits, perks, and work-related resources. Kelly offers eligible employees voluntary benefit plans including medical, dental, vision, telemedicine, term life, whole life, accident insurance, critical illness, a legal plan, and short-term disability. As a Kelly employee, you will have access to a retirement savings plan, service bonus and holiday pay plans (earn up to eight paid holidays per benefit year), and a transit spending account. In addition, employees are entitled to earn paid sick leave under the applicable state or local plan. Click here for more information on benefits and perks that may be available to you as a member of the Kelly Talent Community.
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About Kelly
Work changes everything. And at Kelly, we're obsessed with where it can take you. To us, it's about more than simply accepting your next job opportunity. It's the fuel that powers every next step of your life. It's the ripple effect that changes and improves everything for your family, your community, and the world. Which is why, here at Kelly, we are dedicated to providing you with limitless opportunities to enrich your life-just ask the 300,000 people we employ each year.
Kelly is committed to providing equal employment opportunities to all qualified employees and applicants regardless of race, color, sex, sexual orientation, gender identity, religion, national origin, disability, veteran status, age, marital status, pregnancy, genetic information, or any other legally protected status, and we take affirmative action to recruit, employ, and advance qualified individuals with disabilities and protected veterans in the workforce. Requests for accommodation related to our application process can be directed to the Kelly Human Resource Knowledge Center. Kelly complies with the requirements of California's state and local Fair Chance laws. A conviction does not automatically bar individuals from employment. Kelly participates in E-Verify and will provide the federal government with your Form I-9 information to confirm that you are authorized to work in the U.S.