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Diesel Tech Apprentice Jobs in Ontario (NOW HIRING)

MasterTech

Diesel Technician

Dundas, ON · On-site

$45 - $46/hr

This is a Shop Tech role, responsible for the maintenance, diagnostics, and repair of a large fleet ... Licensed Technicians are preferred (310T, 310S), or apprentice. * 4+ years of experience working on ...

Penske Truck Leasing

CA$27 - CA$28/hr

We have industry leading trucks, technology, tools, and experts in the vehicle maintenance industry ... At Penske a Diesel Technician III is a mechanic's helper/apprentice that will perform minor ...

Penske Truck Leasing

CA$25 - CA$27/hr

We have industry leading trucks, technology, tools, and experts in the vehicle maintenance industry ... At Penske a Diesel Technician III is a mechanic's helper/apprentice that will perform minor ...

Penske Truck Leasing

CA$27 - CA$28/hr

We have industry leading trucks, technology, tools, and experts in the vehicle maintenance industry ... At Penske a Diesel Technician III is a mechanic's helper/apprentice that will perform minor ...

First Student

CA$54K/yr

Previous gas or diesel vehicle repair experience; school bus experience is helpful * Must have ... technology the transportation industry has to offer.

Penske Truck Leasing

We have industry leading trucks, technology, tools, and experts in the vehicle maintenance industry ... At Penske a Diesel Technician III is a mechanic's helper/apprentice that will perform minor ...

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Diesel Tech Apprentice information

What is a diesel tech apprentice?

A Diesel Tech Apprentice is an entry-level technician who is training to repair, maintain, and service diesel engines and vehicles under the supervision of experienced mechanics. Apprentices learn hands-on skills such as diagnosing engine problems, performing routine maintenance, and using specialized tools. This role typically involves both classroom instruction and on-the-job training, allowing apprentices to gradually develop the expertise needed to become certified diesel technicians.

What are the key skills and qualifications needed to thrive as a diesel tech apprentice?

To thrive as a Diesel Tech Apprentice, you need a basic understanding of diesel engine mechanics, strong problem-solving abilities, and typically a high school diploma or technical training. Familiarity with diagnostic tools, hand and power tools, and safety protocols is essential, and some employers may require or prefer ASE certification. Attention to detail, willingness to learn, and effective communication help apprentices stand out in shop environments. These skills and qualities ensure accurate diagnostics, safe repairs, and successful teamwork as you build your expertise in diesel technology.

What is the difference between Diesel Tech Apprentice vs Diesel Technician?

AspectDiesel Tech ApprenticeDiesel Technician
CredentialsOften in training, may have basic certifications or noneTypically has completed training or certification programs
Work EnvironmentOn-the-job training, supervised learningFull-time, independent work in repair shops or garages
Industry UsageEntry-level, learning role within automotive and diesel repairSkilled professional performing repairs and diagnostics

The main difference between a Diesel Tech Apprentice and a Diesel Technician is experience and training level. Apprentices are in training, gaining skills under supervision, while technicians are fully qualified professionals capable of performing repairs independently.

What does a diesel tech apprentice do?

As a Diesel Tech Apprentice, your day often starts with a briefing on assigned tasks, which can include preventive maintenance, assisting with diagnostics, and performing basic repairs under supervision. You'll work closely with senior technicians, who guide you through hands-on tasks and safety procedures, allowing you to build foundational skills. Collaboration and asking questions are encouraged, as much of your learning happens on the job. Over time, you'll gain more responsibility and tackle complex repairs, preparing you for advancement within the team.
What are the most commonly searched types of Diesel Tech jobs in Ontario? The most popular types of Diesel Tech jobs in Ontario are:
What are popular job titles related to Diesel Tech Apprentice jobs in Ontario? For Diesel Tech Apprentice jobs in Ontario, the most frequently searched job titles are:
What job categories do people searching Diesel Tech Apprentice jobs in Ontario look for? The top searched job categories for Diesel Tech Apprentice jobs in Ontario are:
Diesel Tech Apprentice jobs near you
Infographic showing various Diesel Tech Apprentice job openings in Ontario as of August 2026, with employment types broken down into 1% As Needed, 72% Full Time, 13% Part Time, 13% Contract, and 1% Nights. Highlights an 91% Physical, 2% Hybrid, and 7% Remote job distribution.

Diesel Technician

MasterTech

Dundas, ON • On-site

$45 - $46/hr

Full-time

Medical, Dental, Vision, Life, PTO

Posted 20 days ago

Job description

MasterTech is on the search for an experienced Diesel Truck Technician in Dundas, ON.

This is a Shop Tech role, responsible for the maintenance, diagnostics, and repair of a large fleet of diesel trucks (class 5 - class 8).

Compensation:
  • $45.00 to $46.00/hour
  • Excellent benefits plan, including medical, dental, vision, and life insurance, RRSP match, etc.
  • PTO and holidays
Shift:
  • flexible start times from 6AM - 8AM, Monday to Friday.
  • Overtime available.
Key Qualifications:
  • Licensed Technicians are preferred (310T, 310S), or apprentice.
  • 4+ years of experience working on medium to heavy duty diesel trucks.
  • Proficient with OEM diagnostic software.
  • Welding and fabrication skills are preferred.
  • Own set of tools.
  • Valid driver's license.