Mechanical Engineer

Vancouver, BC
Hybrid
Posted Sep 25, 2026
1 position

$115,000–$130,000 / year

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Employment type: Full-time
Experience level: Senior · 5+ years
Minimum education: Bachelor’s degree
Posting language: English
Working hours: 40 hours per week

Job summary

The Mechanical Engineer will serve as the subject matter expert for cooling systems in high-performance computing data centers, overseeing design, construction, and commissioning. They will perform technical analyses, validate engineering deliverables, and collaborate with cross-functional teams to ensure optimal system performance and energy efficiency.

Job details

Job Type: Full Time | Location: Vancouver, BC | Department: Engineering | Reporting to: VP of Engineering | Work Location Type: #hybrid IREN is a vertically integrated AI Cloud provider, delivering large-scale data centers and GPU clusters for AI training and inference. IREN's platform is underpinned by its expansive portfolio of grid-connected land and power in renewable-rich regions across North America, Europe and APAC. We are moving to liquid-cooled GPU halls at high density. Reporting to the VP, Engineering, the Senior Mechanical Engineer owns the mechanical systems that move heat and fluid across our Canadian sites: chilled water plant, coolant distribution, pumps, piping, heat exchangers, chillers and the controls around them, from design through construction, commissioning and operation. You do not need to have worked in a data center. We are looking for an engineer who has owned fluid systems end to end in a demanding environment (oil and gas, petrochemical, water treatment, marine, mining or industrial process are all good backgrounds) and who can bring that to a new problem. If your career has been in pumps, pipes, chillers and compressors rather than fans and ducts, this is the role for you. With 100% renewable energy, we build, own and operate our data centers and take pride in being at the forefront of sustainable solutions for the ever-evolving applications of high-performance compute. We believe that human progress is invaluable, but it should be done in the right way: responsibly, sustainably and having a positive impact on the communities we operate in. * Bachelor's degree in Mechanical Engineering from a recognized institution. P.Eng or eligibility for registration with EGBC preferred. * 7+ years designing, building, commissioning or operating fluid-moving mechanical systems: pumps, piping, chillers, compressors, heat exchangers, hydronic and process cooling plants. * Data center or mission critical experience preferred. Liquid cooling exposure (direct-to-chip, coolant distribution units, rear-door heat exchangers) is a strong asset. * Hands-on experience sizing pumps, piping, heat exchangers and chilled water plant, including hydraulic and thermal calculations. * Working knowledge of P&IDs and plant design tools (AutoCAD, Revit or equivalent). * Ability to apply CFD and thermal analysis results to design decisions. * Working knowledge of ASHRAE (including TC 9.9), ASME B31 piping codes, CSA and BC codes. ASPE, IPC and IECC an asset. Familiarity with BMS/BAS or DCIM platforms an asset. * Senior individual contributor who mentors and coordinates across disciplines, with the potential to lead a mechanical team as the group grows. * Excellent verbal and written communication skills across audiences from junior staff to senior leadership. * Self-driven, detail oriented, and comfortable delivering high-quality work with limited direction, uncertainty and limited information. * Willing to travel regularly to Prince George and other IREN sites in BC, and Alberta in future. * Serve as the owner's mechanical SME for cooling plant across design, construction, commissioning and operations of liquid-cooled HPC data centers: chilled water, coolant distribution, pumps, piping, heat exchangers and controls. * Review and validate specifications, calculations, drawings and other technical deliverables from consultants, equipment manufacturers, engineering firms and commissioning agents. * Lead or support construction, installation and commissioning activities for mechanical systems. * Monitor mechanical system performance to maintain operating limits and reliability, assess current and future capacity constraints, and implement energy-efficient improvements. * Collaborate with architects, electrical engineers and other stakeholders to ensure integrated design solutions. * Support project planning by contributing to schedules, budgets and resourcing plans, and coordinating with site teams, corporate staff and external engineering partners. * Develop technical documentation (plans, checklists, specifications, reports, procedures and standards) to support work from design through construction, commissioning and operations. * Maintain records for cooling-system technical documentation and site integration, ensuring completeness, accuracy and availability. * Coach and provide feedback to other staff on cooling, mechanical and piping matters. * Perform technical analyses (calculations, simulations, CFD and thermal analysis) to optimize liquid and air cooling and airflow. At IREN, we offer a comprehensive Total Rewards package designed to support your health, well-being, and long-term success. Our Canada package includes: Compensation * The expected base salary for this role ranges starting from $130,000.00 * Actual compensation will be determined based on factors such as experience, qualifications, and market data for the region. * Total Compensation package may be inclusive of annual incentive bonus and equity (long-term incentive). * Relocation assistance (as applicable and based on successful candidate circumstances). Health & Wellness * Medical, dental, and vision insurance coverage, 100% company paid for employees and dependents * Company-paid life and disability insurance * Voluntary life and critical illness coverage available * Employee Assistance Program and virtual health care platform Financial Well-Being * RRSP with company match * Voluntary TFSA Time Off & Flexibility * 3 weeks annually for vacation and paid holidays * Hybrid work arrangement Growth & Development * Opportunities for advancement and internal mobility * Training and personal development opportunities Lifestyle & Culture * Company events and team-building activities

What you’ll do

Requirements

Candidates must hold a Bachelor's degree in Mechanical Engineering and possess at least 5 years of experience in data center or mission-critical facility operations. Proficiency in HVAC load calculation, design software like Revit or AutoCAD, and knowledge of ASHRAE standards are required.