Sr Mechanical Cx Engineer, Data Center Engineering

Do you want to help build some of the largest and most consequential enterprise and customer technology systems in the world Join Apples Information Systems and Technology (ISu0026T) organization. ISu0026T is the engine behind everything Apple does for customers and for the people who build for them. Its Apples central nervous system. Supporting 2.5 billion active Apple devices processing billions of secure transactions and keeping the technology that defines modern life running flawlessly ISu0026T makes the impossible feel you love building solutions to handle global complexity and immense scale Imagine what you could do Services is part of ISu0026T and the foundation of Apples global network operations managing data center equipment and systems to deliver compute storage and networking services for teams across Apple including its internal developer community. From individual facilities to a worldwide network Infrastructure Services ensures the technology underneath everything works without Data Center Commissioning team is looking for a Senior Technical Mechanical Engineer with depth in mechanical cooling systems hydronics airflow dynamics fire protection systems and mechanical building automation. The successful candidate will serve as the primary mechanical technical authority across the full commissioning lifecycle (Levels 15) supporting all new Apple data centers enterprise compute expansions and specialized critical spaces/labs.n

In this role you will govern the end-to-end commissioning lifecycle by managing third-party Commissioning Agents (CxA) rather than executing tests directly. With a strong emphasis on technical oversight script validation and cross-functional leadership you will direct all project phases including design commissionability reviews Factory Acceptance Testing (FAT) Pre-Functional Testing (PFT) Functional Performance Testing (FPT) and Integrated Systems Testing (IST).

Serve as the primary mechanical commissioning senior engineer across all new Apple data centers and critical infrastructure governing the complete Level 1 through Level 5 commissioning author and standardize global mechanical commissioning playbooks test scripts functional performance procedures and Integrated Systems Testing (IST) execution onboard manage and audit third-party Commissioning Agents (CxA) mechanical contractors and Test and Balance (TAB) firms during onsite testing and technical commissionability reviews on Basis of Design (BOD) MEP drawing packages Pu0026IDs and sequences of operations (SOO) to guarantee testability and operational and validate Factory Acceptance Testing (FAT) for major mechanical equipment including chillers cooling towers custom AHUs CRAH/CRAC units and hydronic pump the technical validation of advanced high-density liquid cooling topologies including direct-to-chip loops hydronic distribution secondary fluid quality and CDU the commissioning of critical fire protection and life safety systems while managing strict adherence to Methods of Procedure (MOPs) and mechanical Lockout/Tagout (LOTO) safety mechanical root cause analysis during live load testing partnering with Controls and Electrical engineers to validate cross-domain interlocks emergency power-off (EPO) and complex failover the operational turnover process by ensuring accurate baseline trending comprehensive Ou0026M documentation warranty readiness and hands-on facility training.n

Bachelors degree in Mechanical Engineering Architectural Engineering Systems Engineering or a related engineering discipline (or equivalent practical/job-related experience).n5 years of direct experience commissioning and or managing the commissioning of mechanical and HVAC systems in a Hyperscale data center of large-scale mechanical cooling systems (such as central chilled water plants cooling towers air-cooled/water-cooled chillers CRAH/CRAC units and pumping infrastructure).nExperience with the commissioning testing and or validation of data center fire protection suppression and early warning fire detection developing reviewing approving and or overseeing the execution of Level 4 (Functional Performance Testing) and Level 5 (Integrated Systems Testing) test scripts and with mechanical Sequence of Operations (SOO) validation under dynamic load and ability to travel approximately 40% with availability for international travel as needed to support vendor factory testing and global site commissioning activities.

Professional Engineer (PE) license in Mechanical Engineering strongly preferred.n8 years of mission-critical mechanical commissioning leadership experience covering greenfield hyperscale data center campuses and specialized Ru0026D/hardware lab practical expertise in high-density compute cooling including liquid-to-liquid / liquid-to-air Coolant Distribution Units (CDUs) secondary fluid loops manifold design validation and direct-to-chip cooling with commissioning management software platforms (such as CxAlloy Facility Grid or similar tools) for script management issue tracking and project knowledge of Building Automation Systems (BAS) and Direct Digital Control (DDC) platforms including PID loop tuning sensor calibration validation network architecture and communication protocols (BACnet Modbus).nExperience with data center load bank deployment variable-capacity heat-load testing strategies acoustic testing and thermal imaging/infrared track record of resolving complex field engineering challenges conducting Failure Modes and Effects Analysis (FMEA) and driving continuous improvement into corporate commissioning standards and utilizing data trending BMS telemetry and Python scripting or data visualization tools to evaluate equipment performance curves plant efficiency (kW/ton PUE) and transient response during failover with AI tools to enhance daily work including AI-assisted authoring and redlining of commissioning scripts automated parsing of submittals and sequences of operations and leveraging predictive analytics and anomaly detection over operational telemetry.