Refrigeration and Mechanical Systems Technician (HVAC/R Tech)

Calian Advanced Technologies; London; On-site; CAD 50,000 - 70,000; Full time

Job summary

A leading defense support firm is seeking Refrigeration and Mechanical Systems Technicians in London, Ontario. Ideal candidates will have a relevant diploma or certificate and knowledge of HVAC/R systems. This full-time position offers paid training and opportunities for growth in a safety-conscious environment. Interested individuals are encouraged to apply to join the talent pool for future roles.

Benefits

Paid training

Ongoing technical development

Structured advancement opportunities

Qualifications

• High school diploma and/or diploma or certificate in Refrigeration and Air Conditioning, Mechanical Technician, or related field.
• Basic knowledge of HVAC/R systems, tools, and safety procedures.
• Ability to read technical manuals, blueprints, and wiring diagrams.

Responsibilities

• Assist in the installation, maintenance, and repair of refrigeration, air conditioning, and ventilation systems.
• Perform routine inspections and testing of mechanical and refrigeration components.
• Troubleshoot equipment issues and support system diagnostics.
• Ensure compliance with safety and environmental standards.
• Maintain tools, equipment, and service records.

Skills

Knowledge of HVAC/R systems

Attention to detail

Mechanical aptitude

Education

High school diploma or relevant diploma/certificate

Job description

Position Overview

Calian is assembling a talent pool for future full-time opportunities as Refrigeration and Mechanical Systems Technicians (HVAC/R Tech) to support facilities and operational environments in defense-related settings. These roles are ideal for individuals with HVAC/R or mechanical systems training who are interested in hands-on, safety-conscious work environments with long-term growth potential.

Job Type

Full Time

This opportunity includes paid training, ongoing technical development, and structured advancement opportunities within national defense infrastructure support.

Responsibilities

• Assist in the installation, maintenance, and repair of refrigeration, air conditioning, and ventilation systems.
• Perform routine inspections and testing of mechanical and refrigeration components.
• Troubleshoot equipment issues and support system diagnostics.
• Ensure compliance with safety and environmental standards (e.g., refrigerant handling).
• Maintain tools, equipment, and service records.

Qualifications

• High school diploma and/or diploma or certificate in Refrigeration and Air Conditioning, Mechanical Technician, or related field.
• Basic knowledge of HVAC/R systems, tools, and safety procedures.
• Ability to read technical manuals, blueprints, and wiring diagrams.
• Good mechanical aptitude and attention to detail.

Ideal Candidates

• Recent or upcoming graduates from college or trades programs
• Interested in structured roles with training and advancement potential
• Open to relocation or working across different regions in Canada
• Canadian citizens or permanent residents

We’re Interested in Hearing from Individuals with Backgrounds In

• Skilled trades (HVAC, refrigeration, mechanical, plumbing, facilities maintenance)
• Technical programs (refrigeration and air conditioning, mechanical systems, building automation)
• Support services (HR, administration, law and security foundations)

If you’re curious about careers connected to defense and security and want to be considered for upcoming opportunities in 2025 and beyond, we encourage you to submit your resume to join our pre-qualified talent pool.

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