310j mechanic | oshawa.

310J Trailer Mechanic
Oshawa / Durham Region, ON
$45.00 – $55.00 per hour
Day Shift (Monday – Thursday: 6:00 AM – 3:30 PM Friday: 6:00 AM – 2:30 PM)
Full-Time, Permanent

About the Role
We are recruiting a licensed 310J Trailer Mechanic for a top-tier heavy transport and custom trailer manufacturer in the Durham Region.

This is not a high-turnover fleet oil-change shop.

You will handle full-scope mechanical buildouts, pneumatic/hydraulic system installations, and structural repairs on custom commercial trailers and heavy equipment.

Advantages
$45.00 – $55.00/hour for 310J Technicians (strong wages for apprentices).
Predictable hours with early Friday finishes and optional weekend overtime.
Stable, long-tenured shop floor where supervisors average 10–20 years with the business.
Full Benefits: Comprehensive medical, dental, paid time off, and boot allowance.

Responsibilities
Install, inspect, and troubleshoot commercial trailer air brake systems (ABS/EBS), suspensions, and axles.
Wire and test 12V electrical harnesses, tail lights, and junction boxes on new custom builds.

Assemble hydraulic wet lines, PTO systems, and cylinders for specialized trailers and live-bottom units.
Perform annual safety inspections, structural mechanical PMs, and pre-delivery sign-offs.
Execute minor MIG/Stick welding touch-ups and bracket fabrication as needed.

Qualifications
Licensed 310J
6+ years of direct hands-on experience working on heavy commercial trailers or transport equipment.
Fluent in air brake schematics, 12V electrical diagnostics, and hydraulic fluid systems.
Own complete set of hand/pneumatic tools; comfortable working at heights with fall protection.

Summary
For a confidential conversation regarding this role, please reach out directly:

Sarah Dinis Staffing Manager Randstad Canada

Direct Phone: Show phone number Email: View email address on randstad.com LinkedIn: linkedin.com/in/sarah-dinis

Randstad Canada is committed to fostering a workforce reflective of all peoples of Canada. As a result, we are committed to developing and implementing strategies to increase the equity, diversity and inclusion within the workplace by examining our internal policies, practices, and systems throughout the entire lifecycle of our workforce, including its recruitment, retention and advancement for all employees. In addition to our deep commitment to respecting human rights, we are dedicated to positive actions to affect change to ensure everyone has full participation in the workforce free from any barriers, systemic or otherwise, especially equity-seeking groups who are usually underrepresented in Canada's workforce, including those who identify as women or non-binary/gender non-conforming; Indigenous or Aboriginal Peoples; persons with disabilities (visible or invisible) and; members of visible minorities, racialized groups and the LGBTQ2+ community.

Randstad Canada is committed to creating and maintaining an inclusive and accessible workplace for all its candidates and employees by supporting their accessibility and accommodation needs throughout the employment lifecycle. We ask that all job applications please identify any accommodation requirements by sending an email to View email address on randstad.com to ensure their ability to fully participate in the interview process.

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