Critical Cooling Systems Technician (HVAC)

Critical Cooling Systems Technician (HVAC)

A Data Center Chilled Water Expert (often titled as Critical Cooling Systems Technician, Liquid Cooling SME, or Data Center Facilities Engineer) is responsible for the technical authority, maintenance, and optimization of large-scale chilled water and liquid cooling systems that protect critical production.

System Maintenance & Operations: Perform advanced preventive, predictive, and corrective maintenance on 2000 ton air-cooled/water-cooled chillers, pumps, cooling towers, piping networks and associated control systems.

Advanced Liquid Cooling: Act as the primary technical authority for rack cooling, Coolant Distribution Units (CDUs), Liquid cooled rack fans and Roof Top Units (RTUs).

Water Chemistry Management: Monitor and maintain technical water chemistry to prevent corrosion and biological growth, conducting regular fluid sampling and pH/conductivity testing.

Troubleshooting & Incident Response: Execute rapid fault isolation for cooling-related alarms and performance deviations

Optimization & Efficiency: Analyze temperature, pressure, and delta-T metrics to optimize system PUE (Power Usage Effectiveness) and energy efficiency.

Vendor & Project Oversight: Supervise third-party service providers during major repairs (e.g., chiller teardowns) and support commissioning for new infrastructure.

Knowledge/Skills/Competencies

Experience: Typically 510 years of hands-on experience in data centers, Computing facilities, or heavy industrial cooling

Technical Knowledge: Deep proficiency in thermodynamics, fluid mechanics, hydronic balancing, and control schematics.

Preferred Certifications: Certified HVAC Process Cooling EPA Section 608 Universal Refrigerant Handling. Manufacturer-specific training on major chiller brands (e.g., York, Johnson Controls, Schneider Electric).

Physical Demands Duties of the position are performed in a manufacturing environment with frequent exposure to noise, dust, chemicals, operating machinery, temperature extremes, hazardous substances, etc. Duties may require extended periods of sitting and sustained visual concentration on a computer monitor or on numbers and other detailed data. Repetitive manual movements (e.g., data entry, using a computer mouse, using a calculator, etc.) are frequently required.

Typical Experience Five to Ten years of relevant experience

Typical Education Bachelor's degree in a related field, or an equivalent combination of education and experience. Educational requirements may vary by geography

Celstica is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, pregnancy, genetic information, disability, status as a protected veteran, or any other protected category under applicable federal, state, and local laws. This policy applies to hiring, promotion, discharge, pay, fringe benefits, job training, classification, referral and other aspects of employment and also states that retaliation against a person who files a charge of discrimination, participates in a discrimination proceeding, or otherwise opposes an unlawful employment practice will not be tolerated. All information will be kept confidential according to EEO guidelines. Celestica is an E-Verify employer.