Test Specialist (Cooling Distribution Unit)

Test Specialist - CDU

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 distinctions 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.

Role

What You’ll Do

CoolIT Systems, Inc. is seeking a full-time Test Specialist, who can lead, oversee and support the testing and qualification of Cooling Distribution Unit (CDU) systems, owning verification and validation strategies for mechanical, thermal, and fluid performance. Define test plans, support DFMEA and risk assessments, and oversee reliability and stress testing including HALT, thermal cycling, vibration, and pressure/flow evaluations. Lead instrumentation and data acquisition strategies, perform advanced statistical analysis, and translate results into actionable design improvements. Provide technical guidance and mentorship to test engineers and technicians, collaborate with design, manufacturing, and reliability teams, and communicate findings and recommendations to leadership and customers.

Reporting to Team Lead CDU (Test and Qualification), This role is ideal for a meticulous and technically skilled individual who thrives in a hands-on Mechanical and Electrical testing environment, is passionate about advancing liquid cooling technology

Responsibilities

• Develop and own test strategies, validation plans, and qualification roadmaps aligned with internal requirements and customer standards.
• Define test scope, configurations, acceptance criteria, and risk-based coverage for pumps, heat exchangers, PRVs, electrical, and fluid systems.
• Translate system requirements into structured test plans, matrices, and execution frameworks; identify test gaps, constraints, and dependencies.
• Conduct DFMEA-driven design reviews to identify risks and recommend mitigation strategies.
• Evaluate materials, tolerances, sealing concepts, and thermal/fluid performance; ensure design-for-test (DFT) and design-for-reliability (DFR) principles are applied.
• Plan and oversee reliability and stress tests, including HALT, thermal cycling, pressure/flow, vibration, mechanical load, and leak testing under real-world conditions.
• Support test setup validation, instrumentation strategy, and data acquisition planning.
• Develop and apply statistical data analysis frameworks (regression, variance, trend, Weibull) for performance and reliability assessment.
• Perform data validation, cleansing, and normalization; convert results into actionable insights and engineering conclusions.
• Lead or support root cause analysis (RCA) and CAPA implementation.
• Create, review Non-Conformance (NC) reports; review Engineering Change Notices (ECNs) for validation impact, risks, and test requirements.
• Prepare and present data-driven technical reports, dashboards, and qualification summaries; communicate findings, risks, and recommendations to leadership and customers.
• Provide feedback and guidance in Product Requirements Documents (PRD), System Requirements Documents (SRD), and design reviews, ensuring testability, thermal performance, and reliability considerations are incorporated early in design.
• Participate in technical reviews, design gates, and provide with analytical feedback and drive continuous improvement

Who You Are

Basic Qualifications

• BSc or MSc in Mechanical Electrical, Electronics, Computer Engineering or relevant field.
• Strong knowledge of materials science, thermodynamics, fluid systems, and electro-mechanical components.
• Expertise in analyzing and optimizing heat transfer in mechanical systems
• Proficient in testing fluid flow and thermal behavior to support CDU Qualification and performance evaluation
• Demonstrated knowledge and experience in statistics and data science or data analysis.
• Hands-on experience with instrumentation (pressure, temperature, flow sensors), DAQs, and actuators.
• Proficiency with bench test tools (oscilloscope, power analyzer, logic analyzer, multimeter, etc.).
• Experience with embedded systems (PLCs, Raspberry Pi, microcontrollers) is an asset.
• Demonstrated ability to perform design reviews, risk assessments, and root cause analysis.
• Familiarity with control algorithms and PID tuning.
• Programming experience (Python and/or C/C++).
• Experience in mechanical hardware design in SolidWorks or equivalent CAD programs is an asset.
• Knowledge of ASTM, ISO, and reliability test standards.

Preferred Qualifications

• Experience with data center liquid cooling systems.
• Familiarity with Liquid cooling infrastructure.
• Background in Mechanical and Electrical engineering.

Skills

• Ability to manage multiple test programs, priorities, and timelines effectively.
• Strong leadership and mentoring skills with the ability to guide and develop engineers and technicians.
• Excellent problem-solving and analytical skills, especially for failure analysis and root cause investigations.
• Clear and professional communication skills for presenting technical content to diverse stakeholders.

WHY COOLIT?

We strive to be an employer of choice and as such we believe in rewarding our employees with career and development opportunities that will maintain and strengthen our culture while aligning to our vision and values.

Benefits

We are a company that is full of vibrant, innovative people who love what we do. Our comprehensive benefits package includes:

• Vacation and flex days, and paid company-wide shutdown during the holiday season.
• Comprehensive benefits including Dental, Drugs, Optical, Paramedical and Health Spending. These costs are covered by CoolIT and are enacted from your first day.
• Dress for your day – in a casual yet professional environment.
• Retention rewards like “The Big Coffee Break” that reward tenure with additional vacation time and a monetary bonus.
• Company-funded RRSP contributions to support your long-term financial goals.

We thank every candidate in advance, however, only those selected for an interview will be contacted.

Successful candidates for this position will be required to undergo background checks including criminal records check and education.