Mechanical Engineer - Thermal Design

Location: On-site in Ottawa, Canada

Company

hirify.global builds rugged, mission-critical systems for the Canadian Armed Forces and allied operators.

What you will do

• Design thermal management solutions for sealed, rugged electronics, including heat sinks, heat spreaders, thermal interface materials, and conduction paths.
• Perform thermal analysis, CFD simulation, and engineering calculations to predict component temperatures and identify hot spots across extreme conditions.
• Collaborate with electrical and systems engineers on power dissipation, component placement, materials, and system-level thermal performance.
• Plan and execute thermal testing, correlate models with test data, and drive design improvements based on test and field feedback.
• Develop SolidWorks CAD models, engineering calculations, drawings, and technical documentation.
• Work with mechanical, manufacturing, and supply chain teams to meet cost, weight, size, DFM, DFA, and production requirements.

Requirements

• Bachelor’s or Master’s degree in Mechanical Engineering, Mechatronics, or a related field.
• 4–7 years of experience in thermal design and analysis for electronic systems, preferably rugged, sealed, or harsh-environment hardware.
• Proficiency in SolidWorks and experience with thermal simulation or CFD tools such as ANSYS Icepak, Fluent, Simcenter FloTHERM, or SolidWorks Flow Simulation.
• Strong knowledge of heat transfer, thermal management, materials, and manufacturing processes including machining, extrusion, and die casting.
• Experience with thermal testing and instrumentation, including thermocouples, infrared thermography, environmental chambers, and model correlation.
• Ability to design reliable thermal hardware and passive cooling or heating solutions for sub-zero environments while minimizing power draw.

Nice to have

• Familiarity with MIL-STD-810 and other environmental test standards for rugged electronics.
• Defence background; no defence experience is required.

Culture & Benefits

• High-trust environment with short feedback loops and rapid iteration.
• Direct interaction with operators and systems already deployed with the Canadian Armed Forces.
• Competitive base salary and company equity.
• Comprehensive health benefits.
• Additional equity for full-time employees based on impact.

Hiring process

• AI tools may support screening and response review.
• Final hiring decisions are made by people in accordance with applicable Canadian privacy and employment laws.