Staff Engineer, Facilities HVAC Engineering

Responsibilities

• Lead HVAC project design, engineering, and execution, including capital planning, budgeting, and life-cycle analysis for critical equipment.
• Conduct technical feasibility studies, cooling load calculations, and design reviews to support production expansion and cleanroom requirements.
• Manage end-to-end HVAC projects from concept to commissioning, ensuring adherence to ISO 14644 standards and quality requirements.
• Monitor and maintain stable controlled environments (Temperature, %RH, Particle count, and Delta P) to ensure production compliance.
• Manage N+1 redundancy configurations for critical utilities to mitigate the risk of production downtime.
• Drive energy optimization and decarbonization initiatives, such as Chiller Plant Optimization and transitioning to Low-GWP refrigerants.
• Perform deep-dive technical troubleshooting and root cause analysis (RCA) for complex HVAC failures using 8D methodologies.
• Coordinate project handovers to the O&M team by updating AutoCAD drawings and providing technical training and maintenance manuals.
• Supervise HVAC contractors during high-risk tasks to ensure full compliance with safety protocols.

Requirements

• Bachelor’s degree or higher in Mechanical Engineering or a related field.
• At least 5 years of experience in Facilities management or Engineering, specifically focused on industrial HVAC system operations.
• Proven experience in the electronics industry or high-tech manufacturing environments.
• In-depth knowledge of ISO 14644 standards and environmental control requirements.
• Proficiency in AutoCAD for designing and reviewing mechanical/HVAC layouts.
• Strong understanding of Chiller Plant systems, AHU/MAU operations, and psychrometric analysis.

Preferred Qualifications

• Professional Practice License from the Council of Engineers Thailand.
• Experience with Building Management Systems (BMS) or Building Automation Systems (BAS).

About the Company

WD is building the infrastructure behind the AI-driven data economy. We combine deep engineering expertise with global-scale manufacturing to deliver the storage systems that make AI possible, powering hyperscale data centers, cloud platforms, and enterprise infrastructure worldwide.