310T – Diesel Mechanic – Ajax, ON

OneJobCareer; Ajax; On-site; CAD 41,000 - 55,000; Full time

Job summary

Summit School Services in Ajax, Ontario, seeks a full-time 310T Diesel Mechanic to maintain a safe, reliable fleet. You will diagnose malfunctions, service engines, transmissions and drivetrains, and ensure compliance with safety standards. Ideal candidates hold 310T certification and have strong knowledge of vehicle systems.

Join our maintenance team in Ajax to contribute to smooth operations and vehicle uptime, performing repairs and preventive maintenance with a focus on quality and safety.

Qualifications

• Requires 310T diesel mechanic certification or equivalently recognized training.
• Experience maintaining fleet vehicles in a shop or field setting.
• Strong knowledge of vehicle systems and safety standards.

Responsibilities

• Diagnose vehicle malfunctions and determine repairs.
• Adjust and test steering, electrical, cooling, lubrication and braking systems.
• Work on drivetrains, suspensions, power steering units, clutches and transmissions.
• Inspect and service oil, temperature and gas-regulating components.
• Adjust, test and rebuild engines as required.
• Perform related duties within qualification level.
• Ensure all work complies with federal, provincial and local safety standards.

Skills

Diesel engine repair

Vehicle diagnostics

Fleet maintenance

Education

310T Diesel Mechanic Certification

Job description

# 310T – Diesel Mechanic – Ajax, ON**Summit School Services**· Ajax, Durham region · View on mapPOSTEDOct 15, 2026## About this jobATSCHECK.PRO### Is Your Resume ATS-Ready?Find resume issues and missing keywordswith AI-powered analysis.✓ Resume analysis ✓ ATS compatibility insightsCHECK YOUR RESUME NOW →Make your resume work harder for your career.Summit School Services is currently seeking a dedicated and qualified professional for a full-time 310T – Diesel Mechanic position located in Ajax, within the Durham region. If you hold the required certification and are looking for a stable opportunity with a reputable organization, this could be the ideal role for you.In this position, you will be responsible for ensuring our fleet remains safe, reliable, and properly maintained. You will apply your technical expertise to identify mechanical issues and complete necessary maintenance and repair tasks efficiently.Key responsibilities and duties for this role include:* Diagnosing vehicle malfunctions and determining the appropriate course of action for repairs.* Adjusting and testing critical systems, including steering, electrical, cooling, lubricating, and braking systems.* Working on drive trains, suspensions, power steering units, clutches, and transmissions.* Inspecting and servicing oil, temperature, and gas-regulating components.* Adjusting, testing, and rebuilding engines as required.* Performing related assigned duties within your qualification level.* Ensuring all work is performed strictly in accordance with relevant Federal, Provincial, and local guidelines and safety standards.We invite qualified candidates who meet the 310T requirements to apply for this full-time opportunity in Ajax. Join our team and contribute to keeping our operations running smoothly.* **Company:** Summit School Services* **Location:** Ajax, Durham region* **Job Category:** Maintenance Jobs* **Job Tags:** Ajax, Full-time