310J Mechanic | Oshawa

Randstad Canada; Oshawa; On-site; CAD 62,000 - 76,000; Full time

Benefits offered by this job

Full Benefits: medical, dental

Boot allowance

Paid time off

Job summary

Randstad Canada is seeking a licensed 310J Trailer Mechanic for a top-tier heavy transport and custom trailer manufacturer in the Durham Region, ON. This full-time, permanent role is based in Oshawa with a day shift from Monday to Friday and early finishes on Fridays.

You will install, inspect, and troubleshoot air brake systems, suspensions, axles, and 12V electrical harnesses on custom trailers and live-bottom equipment, including welding touch-ups and pad fabrication.

Qualifications

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

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

Skills

6+ years heavy trailer experience

Air brake schematics

12V electrical diagnostics

Hydraulic systems knowledge

MIG/Stick welding

Education

Licensed 310J

Tools

Hand tools

Pneumatic tools

Electrical harness testing equipment

Brake test equipment

Job description

About the Role

Location: Oshawa / Durham Region, ON. Shift: Day Shift (Monday – Thursday: 6:00 AM – 3:30 PM; Friday: 6:00 AM – 2:30 PM). Full‑time, Permanent. 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.

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 [e-mail] to ensure their ability to fully participate in the interview process.