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Diesel Assistant Jobs in Schofield, WI (NOW HIRING)

County Materials Corporation

Diesel Mechanic

Marathon, WI · On-site

$23.50 - $31/hr

Support team operations and assist with special projects or tasks * Use hand and power tools ... Diesel, Mechanical, & Pneumatic Systems Knowledge * Diagnostics & Troubleshooting * Preventative ...

GFL Environmental

Diesel Mechanic

Mosinee, WI

$30/hr

... diesel trucks and equipment including rolling stock to ensure its ability to operate safely ... This hiring process may utilize machine-based systems to assist in screening and assessing ...

GFL Environmental

Diesel Mechanic

Mosinee, WI · On-site

$25 - $30/hr

... diesel trucks and equipment including rolling stock to ensure its ability to operate safely ... This hiring process may utilize machine-based systems to assist in screening and assessing ...

GFL Environmental

Diesel Mechanic

Mosinee, WI · On-site

$25 - $30/hr

... diesel trucks and equipment including rolling stock to ensure its ability to operate safely ... This hiring process may utilize machine-based systems to assist in screening and assessing ...

United Rentals - French

Diesel Mechanic

Kronenwetter, WI · On-site

$24.75 - $32.50/hr

As a Diesel Mechanic (Service Tech I), you'll use your skills (diesel, automotive, welding or other ... customers Assist with pick-up and delivery of equipment & parts Other duties assigned as needed ...

United Rentals

Diesel Mechanic

Kronenwetter, WI

$24.50 - $32.50/hr

As a Diesel Mechanic (Service Tech I), you'll use your skills (diesel, automotive, welding or other ... Demonstrate equipment for customers * Assist with pick-up and delivery of equipment & parts * Other ...

United Rentals

Diesel Mechanic

Kronenwetter, WI · On-site

$24.75 - $32.50/hr

As a Diesel Mechanic (Service Tech II), you'll use your skills to perform maintenance, preventive ... customers Assist with pick-up and delivery of equipment & parts Other duties assigned as needed ...

United Rentals

Diesel Mechanic

Kronenwetter, WI · On-site

$24.75 - $32.50/hr

As a Diesel Mechanic (Service Tech I), you'll use your skills (diesel, automotive, welding or other ... customers Assist with pick-up and delivery of equipment & parts Other duties assigned as needed ...

United Rentals

Diesel Mechanic

Kronenwetter, WI

$24.50 - $32.50/hr

As a Diesel Mechanic (Service Tech II), you'll use your skills to perform maintenance, preventive ... Demonstrate a wide array of complex equipment for customers * Assist with pick-up and delivery of ...

United Rentals, Inc.

Diesel Mechanic

Kronenwetter, WI · On-site

$24.50 - $32.50/hr

As a Diesel Mechanic (Service Tech I), you'll use your skills (diesel, automotive, welding or other ... Demonstrate equipment for customers * Assist with pick-up and delivery of equipment & parts * Other ...

United Rentals

Diesel Mechanic

Kronenwetter, WI · On-site

$24.75 - $32.50/hr

As a Diesel Mechanic (Service Tech I), you'll use your skills (diesel, automotive, welding or other ... customers Assist with pick-up and delivery of equipment & parts Other duties assigned as needed ...

United Rentals

Diesel Mechanic

Kronenwetter, WI

$24.50 - $32.50/hr

As a Diesel Mechanic (Service Tech II), you'll use your skills to perform maintenance, preventive ... Demonstrate a wide array of complex equipment for customers * Assist with pick-up and delivery of ...

United Rentals

Diesel Mechanic

Kronenwetter, WI

$24.50 - $32.50/hr

As a Diesel Mechanic (Service Tech I), you'll use your skills (diesel, automotive, welding or other ... Demonstrate equipment for customers * Assist with pick-up and delivery of equipment & parts * Other ...

United Rentals - French

Diesel Mechanic

Kronenwetter, WI · On-site

$24.75 - $32.50/hr

As a Diesel Mechanic (Service Tech II), you'll use your skills to perform maintenance, preventive ... customers Assist with pick-up and delivery of equipment & parts Other duties assigned as needed ...

United Rentals, Inc.

Diesel Mechanic

Kronenwetter, WI · On-site

$24.50 - $32.50/hr

As a Diesel Mechanic (Service Tech II), you'll use your skills to perform maintenance, preventive ... Demonstrate a wide array of complex equipment for customers * Assist with pick-up and delivery of ...

United Rentals - French

Diesel Mechanic

Kronenwetter, WI · On-site

$24.75 - $32.50/hr

As a Diesel Mechanic (Service Tech I), you'll use your skills (diesel, automotive, welding or other ... customers Assist with pick-up and delivery of equipment & parts Other duties assigned as needed ...

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All JobsDiesel JobsDiesel Assistant JobsDiesel Assistant Jobs in Schofield, WI

Diesel Assistant information

See Schofield, WI salary details

$28.9K

$48.2K

$69.3K

How much do diesel assistant jobs pay per year?

As of Aug 25, 2026, the average yearly pay for diesel assistant in Schofield, WI is $48,248.00, according to ZipRecruiter salary data. Most workers in this role earn between $41,900.00 and $48,400.00 per year, depending on experience, location, and employer.

What is a diesel assistant?

Diesel Assistants are support personnel who assist with the maintenance, repair, and operation of diesel-powered vehicles and equipment, commonly in railway or transportation sectors. Their duties often include checking and fueling engines, performing routine inspections, assisting mechanics, and ensuring that diesel locomotives or machinery operate efficiently. Diesel Assistants work under the supervision of senior technicians or engineers and play a crucial role in keeping the equipment running smoothly and safely. This position is often entry-level and can serve as a stepping stone to more advanced roles within the diesel maintenance field.

What skills and qualifications are needed to be a diesel assistant?

To thrive as a Diesel Assistant, you need foundational mechanical knowledge, basic diesel engine repair skills, and often a high school diploma or equivalent. Familiarity with diagnostic tools, hand and power tools, and safety protocols is essential, and some employers may require completion of a diesel technology training program. Strong attention to detail, a willingness to learn, and effective teamwork are valuable soft skills in this role. These capabilities ensure safe, efficient maintenance of diesel equipment and contribute to the smooth operation of fleet or repair shop environments.

What challenges do diesel assistants face when supporting maintenance teams?

Diesel Assistants often encounter challenges such as working in noisy, fast-paced environments and handling physically demanding tasks like lifting heavy parts or equipment. They may also need to quickly adapt to changing priorities as emergency repairs or breakdowns arise. Collaborating effectively with mechanics and technicians is essential for smooth workflow, and maintaining a strong attention to safety procedures is crucial due to the nature of working with heavy machinery and hazardous materials.

What is the difference between Diesel Assistant vs Diesel Mechanic?

AspectDiesel AssistantDiesel Mechanic
CertificationsBasic automotive or diesel engine training, possibly a CDLASE certification in diesel engines, technical diploma
Work EnvironmentAssist with maintenance, inspections, and basic repairs in garages or fleet settingsPerform complex repairs, diagnostics, and engine overhauls in repair shops or on-site
Job ResponsibilitiesSupport mechanics, perform routine tasks, and assist with partsDiagnose issues, repair engines, and perform detailed maintenance

While both roles involve working with diesel engines, a Diesel Assistant primarily supports mechanics with basic tasks and routine maintenance, requiring less certification. A Diesel Mechanic performs advanced repairs and diagnostics, often holding specialized certifications. The roles differ mainly in responsibility level and technical expertise required.

Diesel Assistant jobs near you
Infographic showing various Diesel Assistant job openings in Schofield, WI as of August 2026, with employment types broken down into 1% As Needed, 75% Full Time, 19% Part Time, 1% Temporary, and 4% Contract. Highlights an 98% Physical, 1% Hybrid, and 1% Remote job distribution, with an average salary of $48,248 per year, or $23.2 per hour.

Diesel Mechanic

Marathon, WI • On-site

County Materials Corporation
Construction Materials Wholesalers • 201 - 500 employees

7.9

Company rating: 7.9 out of 10

Based on 21 frontline employees who took The Breakroom Quiz

People enjoy working here

Good employer

Respectful managers

Learn more about County Materials Corporationexternal

$23.50 - $31/hr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 5 days ago

Job description

The County Materials Family of Companies manufactures and delivers concrete construction products to meet the demand for growing communities. Since 1946, we've relied on our talented and dedicated team members to provide reliable products with personalized service.
We're hiring a Diesel Technician to join County Materials in Marathon, Wisconsin
Job Summary:
We are seeking a Mechanical Technician with strong experience in diesel engines and heavy-duty equipment to maintain, troubleshoot, and repair trucks and large machinery. This role is critical to ensuring safe, reliable, and DOT-compliant operation of fleet and equipment assets.
The Mechanical Technician performs mechanical, hydraulic, pneumatic, and engine diagnostics and repairs, completes preventative maintenance and DOT inspections, and responds to emergency or unscheduled breakdowns to minimize downtime. By interpreting technical manuals, documenting repairs, maintaining clean work environments, and supporting special projects, this position plays a key role in maintaining production schedules and upholding safety and quality standards.
Job Duties & Responsibilities:
  • Troubleshoot, diagnose, and repair diesel engines, trucks, and heavy-duty equipment
  • Perform mechanical, hydraulic, and pneumatic repairs as needed
  • Complete preventative maintenance (PMs) and DOT inspections
  • Respond to emergency and unscheduled equipment breakdowns to reduce downtime
  • Read and interpret technical manuals, schematics, and service documentation
  • Operate, maintain, and inspect shop tools and equipment
  • Follow all safety procedures, regulatory requirements, and quality standards
  • Accurately document repairs, inspections, and maintenance activities
  • Support team operations and assist with special projects or tasks
  • Use hand and power tools, material handling equipment, welders, and cutting torches
  • Maintain a clean, organized, and safe work area
  • Perform other related duties as assigned

COUNTY Core Competencies: The expected behaviors of all COUNTY team members that align with Our Values and Our Commitments:
  • Integrity & Organizational Awareness
  • Customer First Focus
  • Results Driven Orientation
  • Teamwork, Safety & Collaboration
  • Problem Solving & Decision Making
  • Creativity & Innovation

Job-Based Competencies:
  • Diesel, Mechanical, & Pneumatic Systems Knowledge
  • Diagnostics & Troubleshooting
  • Preventative Maintenance & Reliability
  • Work Planning & Documentation
  • Tool Usage
  • Welding
  • Communication
  • Attention to Detail

Experience & Qualifications: (Required or Preferred)
  • High School Diploma or Equivalent
  • Minimum of 2 years' experience in diesel mechanics.
  • Pro-active, multi-tasked, self-motivated team player and positive attitude.
  • Strong hydraulic, mechanical, welding experience
  • A valid driver's license and good driving record is required.
  • CDL preferred

Work Environment:
  • Work is typically performed in an Indoor, Outdoor, Field, environmentincluding extreme hot or cold temperature in confined areas
  • Exposure may include: Noise, weather, machinery, chemicals
  • Travel required as needed
  • Typical work hours/shifts: 1st shift, overtime expectations mandatory

Physical & Work Expectations:
An individual in this position must be able to successfully perform the essential duties and responsibilities listed above. Reasonable accommodation may be made to enable individuals with disabilities to perform the essential functions of this position.
• Frequent standing, walking, bending, reaching, or handling materials/equipment.
• Occasional climbing, kneeling, or lifting/moving up to 75 pounds.
• Follow detailed instructions, communicate effectively, and safely perform job duties.
• May require the operation of specific tools, equipment, or vehicles associated with the position.
Noise Level: How much noise is typical for the work environment of this job?
Loud Noise: (Examples: normal shop conditions)
Safety Equipment:
Required safety equipment: Steel toe boots, hard hat, safety glasses, safety gloves, welding mask
Where and when used: at all times while working
The County Materials Family of Companies connects candidates with rewarding careers in concrete manufacturing, an industry that's growing faster than most. We work alongside individuals to leverage their skills and align them with diverse job opportunities in production, transportation, safety, finance, human resources, information technology, marketing, risk management, and more.
Military service members and veterans are encouraged to apply.
Benefits Overview:
Central Processing Corporation is the payroll and benefit service of the County Materials Family of Companies.
  • Health, dental and vision insurance
  • Paid Short-term & Long-term disability
  • 401(k) match
  • 8 Paid holidays
  • Paid Time Off
  • Referral rewards program
  • Wellness program with rewards
  • Flexible Savings Options
  • Employee Assistance Program
  • Paid Life Insurance
  • $200 Boot Allowance
  • Safety focused: GUARD for Life
  • Voluntary critical illness & accident insurance
  • Optional Uniform Program

English: https://hub.countymaterials.com/hubfs/Benefits.pdf
Spanish: https://hub.countymaterials.com/hubfs/Benefits-Spanish.pdf
County Materials Family of Companies is an EEO/Affirmative Action Employer; all qualified applicants will receive consideration for employment without regard to any characteristic prohibited by federal, state and/or local laws.
We participate in E-Verify to confirm employment eligibility for all new hires.

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