Staff Engineer Engineering & Project

Infineon · Samut Prakan

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The Facilities Mechanical Engineer plays a critical role in supporting24/7 continuous semiconductor manufacturing operations. This dual-function role serves as both the Mechanical System Owner (HVAC, cleanroom recirculating units, PCW, and process exhaust) and the Tool Hook-Up Lead for process equipment. The engineer is responsible for ensuring uninterrupted utility supply, managing capital expansion projects, and executing tool install hook-ups from point-of-connection(POC) to process equipment. 

Your role
Key responsibilities in your new role

• Tool Hook-Up Planning & Execution Matrix & Design Review: Review tool matrix data sheets (P&IDs, tool installation drawings, flow/pressure specs) provided by process equipment owners. Hook-Up Design: Plan, design, and lay out mechanical utility connections(Process Cooling Water [PCW], Exhaust, Compressed Dry Air [CDA], Vacuum, and HVAC ducting). Field Coordination: Lead trade contractors during field walkdowns, point-of-connection (POC) allocations, space management, and pipe routing in the fab, sub-fab, and cleanroom. QA/QC & Commissioning: Oversee pressure testing, leak testing, cleanroom protocol compliance, and sign-offs prior to tool power-on. 
• Mechanical System Ownership System Operations: Act as primary technical owner for assigned mechanical utilities—such as Cleanroom HVAC/AHUs, Process Cooling Water(PCW) loops, General/Acid/Solvent Exhaust systems, and Chilled Water plants. Capacity & Demand Management: Track utility consumption, monitor system headroom, and model future loading to prevent capacity bottlenecks as new tools are installed. Reliability & Continuous Improvement: Monitor FMCS/BMS data, Statistical Process Control (SPC) charts, and equipment alarms to troubleshoot root causes and eliminate single points of failure. 
• Project Management & Contractor Oversight Capital Projects: Manage small-to-large facility mechanical modification projects from design to startup and final handover. Procurement: Prepare scope of work (SOW) documents, Requests for Quotation (RFQs), and technical evaluations for equipment purchases and vendor contracts. Safety & Code Compliance: Ensure all mechanical designs and installations comply with local building codes, NFPA standards, SEMIS2/S8 standards, and site EHS guidelines.

Your profile
Qualifications and skills to help you succeed 

• Profile Education & Experience Education: Bachelor’s degree in Mechanical Engineering or related discipline. 
• Experience: 3–7+ years of mechanical engineering experience in high-tech manufacturing. 
• Direct experience in semiconductor fabrication plants(fabs) or cleanroom environments is highly preferred. 
• Technical Competencies Tool Hook-Up: Deep working knowledge of process equipment tool installation protocols, P&IDs, isometric drawings, and clean room standards (ISO 6–8). 
• Mechanical Systems: Proven expertise in fluid mechanics, thermodynamics, piping design, HVAC design, exhaust abatement, and hydronic balancing. Software Tools: Proficiency in AutoCAD, Revit (BIM), and facility monitoring software (FMCS/SCADA/BMS). 
• Standards: Familiarity with SEMI standards (SEMI S2), IBC/IMC building codes, and NFPA guidelines. 
• Soft Skills & Working Style Cross-Functional Collaboration: Ability to work smoothly between equipment suppliers, facility technicians, EHS teams, and manufacturing managers. 

#WeAreIn for driving decarbonization and digitalization.
As a global leader in semiconductor solutions in power systems and IoT, Infineon enables game-changing solutions for green and efficient energy, clean and safe mobility, as well as smart and secure IoT. Together, we drive innovation and customer success, while caring for our people and empowering them to reach ambitious goals. Be a part of making life easier, safer and greener.
Are you in?

We are on a journey to create the best Infineon for everyone.

We strive to create the best Infineon for everyone by embracing diversity and inclusion. We welcome applicants for who they are and offer a workplace built on trust, openness, respect and equal opportunity. 

Our hiring decisions are based on skills and experience. Even if you don’t meet every requirement, we encourage you to apply.

Please let your recruiter know if you need any accommodations during the interview process.

Learn more about our various contact channels and about Diversity & Inclusion at Infineon.

Onnicha Panruksah

https://www.linkedin.com/in/onnicha-panruksah-534425253/

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