Diesel Mechanic First Shift

Job Description

Job Description

Diesel Mechanic (1st Shift)

Location: Butler, WI
Shift: 7:00am-3:00pm

Why Join Interstate Power Systems?

Interstate Power Systems is a leading provider of heavy-duty truck and equipment service across the Midwest, representing top brands like Freightliner, Western Star, MTU, Volvo, Allison Transmissions and Detroit Diesel.

At our Butler location, you’ll work alongside a skilled team in a fast-paced shop with competitive pay, strong benefits, and real career growth opportunities.

What You’ll Do

• Diagnose and repair mechanical, electrical, and hydraulic systems on heavy-duty diesel trucks and/or equipment.
• Perform preventive maintenance (oil changes, brakes, inspections, etc.)
• Repair/replace major components including engines, transmissions, turbos, and differentials
• Use diagnostic software (Cummins Insite, Detroit Diagnostic Link, OEM tools)
• Complete service documentation for repairs, parts, and compliance
• Communicate repairs and recommendations to customers and internal teams
• Follow all safety standards (OSHA, DOT, company protocols)
• Maintain tools and equipment for daily operations

What We’re Looking For

• Experience: 2+ years working on diesel trucks or heavy equipment
• Strong mechanical aptitude with diesel engines, electrical systems, and diagnostics
• Ability to read schematics, wiring diagrams, and service manuals
• Experience with OEM diagnostic tools preferred
• Basic welding/fabrication a plus
• Valid driver’s license required (CDL preferred)
• Ability to lift up to 75 lbs. and work in shop conditions

Bonus Points:

• Diesel tech certification or ASE (T2–T8)
• Experience with Freightliner, Kenworth, Peterbilt, Volvo, or Mack

What We Offer

• Competitive pay – earn what you’re worth
• Uniforms provided + cleaning included
• Tool program assistance
• Full benefits (medical, dental, vision) – start the 1st of the month after hire
• 401(k) with company match
• PTO starting Day 1
• Paid holidays + floating holidays
• Tuition reimbursement & career growth support
• Company-paid life, short-term & long-term disability
• Safety reimbursement (boots & glasses)
• Employee discounts + pet insurance options
• Free 24/7 Employee Assistance Program

Apply Today

Join a company that lives its values— Pride in Service —and invests in your future.

Interstate Companies is an Equal Opportunity Employer and proudly support military veterans.

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#SROFH