Staff Engineer, Facilities HVAC Engineering

Requirements

• Technical Skills HVAC & Cleanroom Systems: In-depth knowledge of Chiller Plant systems (Centrifugal/Screw), AHU/MAU operations, psychrometric analysis, Cleanroom airflow design, pressure balancing, and dehumidification/humidity control systems.
• Software & Engineering Tools: Proficiency in AutoCAD for designing, modifying, and reviewing mechanical/HVAC layouts.
• Engineering Drawings: Strong ability to read and interpret mechanical drawings, P&IDs, and Control Logic (BMS/BAS).
• Sustainability: Knowledge of energy-saving technologies, Low-GWP refrigerants, and sustainable industrial facility practices.
• Soft Skills & Methodologies Problem Solving: Strong analytical and troubleshooting skills, with expertise in performing Root Cause Analysis (RCA) using 8D or similar methodologies.
• Project Management: Proven ability to manage CAPEX projects from the initial planning phase through to final execution.
• Communication: Excellent communication and interpersonal skills to collaborate effectively with cross-functional teams and supervise external contractors.
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• Notice To Candidates: Please be aware that WD and its subsidiaries will never request payment as a condition for applying for a position or receiving an offer of employment. Should you encounter any such requests, please report it immediately to WD Ethics Helpline or email compliance@wdc.com .

Benefits

Additional Information

ESSENTIAL DUTIES AND RESPONSIBILITIES: HVAC Project Design, Engineering & Execution Capital Planning & Budgeting: Support HVAC capital budget planning, including life-cycle analysis for critical equipment (Chillers, Cooling Towers, AHUs), and prepare technical justifications for upgrades or replacements. Technical Design & Feasibility: Conduct feasibility studies and lead design reviews-including cooling load calculations, psychrometric, and air distribution-to support production expansion and cleanroom requirements. End-to-End Project Management: Lead HVAC projects from concept to commissioning; prepare detailed Scopes of Work, conduct vendor technical evaluations, and ensure strict adherence to ISO 14644 standards, timelines, and quality requirements. Cleanroom Control, Compliance & Redundancy Environmental Parameter Management: Monitor and maintain stable controlled environments (Temperature, %RH, Particle count, and Delta P) to ensure production utilities remain qualified and compliant with industry standards. Downtime Mitigation: Manage and maintain N+1 redundancy configurations for critical utilities to eliminate the risk of production downtime due to environmental excursions. Energy Optimization & Sustainability Decarbonization Initiatives: Drive sustainability goals by implementing energy-saving programs (e.g., Chiller Plant Optimization) and managing the transition to Low-GWP (Global Warming Potential) refrigerants. Advanced Troubleshooting & CAPA Root Cause Analysis: Lead deep-dive technical troubleshooting for complex HVAC failures, generating comprehensive 8D reports and implementing effective Corrective and Preventive Actions (CAPA). Project Handover, O&M Support & Safety Operational Handover: Coordinate smooth project transitions to the Operations & Maintenance (O&M) team by updating As-built drawings via AutoCAD, conducting technical training, and providing spare parts lists and maintenance manuals. Contractor Safety Supervision: Supervise and monitor HVAC contractors during high-risk tasks, ensuring full compliance with safety protocols to achieve zero-accident execution without impacting ongoing production. REQUIRED: Educational Background: Bachelor's degree or higher in Mechanical Engineering Or related. Professional Experience: At least 5 years in Facilities management or Engineering, with a strong focus on industrial HVAC system operations and projects. Industry Expertise: Proven experience in the Electronics industry or High-Tech manufacturing; specific knowledge of ISO 14644 and environmental control requirements. PREFERRED: License for Professional Practice from Council of Engineers Thailand

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