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Lead Diesel Technician

Ace Grease Service
Millstadt, IL Full Time
POSTED ON 1/2/2026
AVAILABLE BEFORE 3/2/2026

Lead Diesel Mechanic / Fleet Diesel Technician

Pay: $45.00 – $50.00 per hour (DOE)

Job Type: Full-time

Schedule: 40 hours per week

Location: On-site

About the Company

We are a family-owned and operated used cooking oil recycling company seeking a skilled and dependable Lead Diesel Mechanic to maintain and repair our fleet. We value safety, communication, and teamwork and are looking for someone who wants long-term, stable employment with strong benefits.

Job Summary

The Lead Diesel Mechanic / Fleet Mechanic is responsible for diagnosing, repairing, inspecting, and maintaining diesel trucks and trailers while ensuring DOT compliance and minimizing downtime. This role requires strong communication skills, preventative maintenance knowledge, and the ability to work efficiently in a fast-paced shop environment.

Essential Duties & Responsibilities

  • Perform daily DOT inspections of trucks and trailers
  • Diagnose and repair mechanical issues reported by drivers or management
  • Maintain and repair:
  • Diesel trucks
  • Trailers
  • Tires and braking systems
  • Hydraulic systems
  • Ensure all equipment meets DOT and safety regulations
  • Perform and recommend preventative maintenance to reduce breakdowns
  • Communicate clearly with drivers, management, and team members
  • Maintain accurate service records using shop inventory systems and computer software
  • Complete repairs in a timely, safe, and cost-effective manner
  • Lead by example with strong work ethic, organization, and safety awareness

Qualifications & Experience

  • 5 years of diesel mechanic or fleet mechanic experience required
  • DOT Diesel Mechanic certification preferred, not required
  • CDL driver preferred, not required
  • Ability to work 40 hours per week
  • Must have own tools
  • Computer diagnosis a plus
  • Experience with:
  • Fleet maintenance
  • Preventative maintenance programs
  • Shop inventory systems
  • Computer-based maintenance software
  • Strong troubleshooting, diagnostic, and communication skills
  • Reliable, safety-focused, and a team player

Pay & Benefits

  • Hourly Pay: $45.00 – $50.00 (based on experience)
  • Full-time, year-round employment
  • Medical, dental, and vision insurance
  • Quarterly performance-based bonuses
  • 401(k) retirement plan
  • Paid vacation, holidays, and sick time

Why Work With Us?

We offer competitive pay, excellent benefits, and a stable work environment with a family-owned company that values its employees. If you're a team player who takes pride in keeping a fleet running safely and efficiently, we want you on our Team

Pay: $ $50.00 per hour

Expected hours: No less than 40.0 per week

Benefits:

  • 401(k) matching
  • Dental insurance
  • Health insurance
  • Paid time off
  • Vision insurance

Experience:

  • Diesel engine repair: 5 years (Required)

Location:

  • Millstadt, IL Preferred)

Work Location: In person

Salary : $45 - $50

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