Mechanical Engineer

About Coolit Systems Inc.

Founded in Calgary, Alberta in 2001, CoolIT Systems is the leading Direct Liquid Cooling technology provider for data centers, supercomputers, and desktop computers. We design and manufacture solutions used by the largest tech companies globally. Recognized as one of “The Americas’ Fastest Growing Companies 2023” by Financial Times and honored with the Deloitte Fast 50 Clean Technology award in 2022, as well as the Deloitte Fast 500 distinction in both 2021 and 2022, CoolIT's rapid growth is capturing global attention.

As demand for generative AI, high performance computing and cloud solutions rapidly expands, there has never been a more exciting time to join our team.

WHAT YOU’LL DO:

The Mechanical Engineer role at CoolIT Systems centers on the design and development of advanced Coolant Distribution Units (CDUs) for direct liquid cooling solutions. This position is responsible for leading the full product lifecycle—from initial concept and prototyping through to testing, validation, and mass production. The role involves close collaboration with cross‑functional teams, suppliers, and manufacturing partners to ensure efficient, high-performance, and scalable designs.

A strong emphasis is placed on continuous product improvement, optimizing for performance, reliability, and manufacturability. Ideal candidates possess a solid mechanical engineering background, hands‑on experience with CAD and simulation tools, and strong communication skills to effectively drive projects and coordinate across teams.

• Lead the NPI design of Coolant Distribution Units (CDUs) through concept development, prototyping, DVT, UL Certification, and PVT to product launch and mass production.
• Support rapid iteration of design concepts through technology assessment, feasibility analysis, and proofs of concept, and oversee the building and testing of thermal, hydraulic, and integrated assembly prototypes for validation.
• Work closely with core teams, customers, and industry partners to ensure our CDU designs are delivered on time, meeting and exceeding market needs.
• Collaborate with industry groups to define and influence emerging standards and best practices.
• Innovate and advance the state of the art for CDU component and system design, maintaining CoolIT's competitive advantage.
• Perform detailed product design using principles of thermodynamics, fluid mechanics, and mechanical engineering with a focus on delivering high performance and high reliability products.
• Create detailed engineering drawings, reports, design reviews, and other documentation to clearly explain design ideas, test results, and recommendations to internal teams and external stakeholders.
• Review and approve designs, drawings, and other engineering documentation.
• Continuously look for ways to improve CDU designs, including reliability, cost, and efficiency.

• Bachelor's degree in Mechanical Engineering, Aerospace Engineering, or a directly related discipline.
• Minimum of 8 years relevant mechanical engineering experience with 2+ years in a design role.
• Proven understanding of designing parts and assemblies for high volume production.
• Proven understanding of fluid dynamics principles, especially as they relate to heat transfer and fluid flow in cooling systems.
• Process piping, P&, and building mechanical design, particularly with respect to HVAC and fluid transfer.
• Understanding of pump, motor, heat exchanger, and sensor selection, testing, and validation.
• Deep familiarity with NPI, PLM, and PDM processes and how they contribute to engineering change management.

• Professional engineering designation with APEGA, or eligibility to obtain P.Eng status within 12 months.
• Direct experience in product design and building mechanical or HVAC industries.
• Experience with rapid prototyping manufacturing techniques and testing of thermal/mechanical components; familiarity with lab equipment for data collection.

• Proficiency in using CAD software (e.g., Solid Works) for detailed mechanical designs & drawings.
• Proficiency with advanced finite element computer simulations, particularly in CFD, heat…