Post-Contract Process Engineer

About the role

Post-Contract Process Engineer responsible for translating preliminary pre-contract designs, Process Flow Diagrams (PFDs), and Piping & Instrumentation Diagrams (P&IDs) into finalized, execution-ready process engineering packages for UPW, wastewater, and reclaim systems in the semiconductor and microelectronics water industry.

Key responsibilities

• Translate preliminary pre-contract designs, Process Flow Diagrams (PFDs), and Piping & Instrumentation Diagrams (P&IDs) into finalized, execution-ready process engineering packages.
• Perform detailed hydraulics, pump sizing, mass balances, chemical consumption calculations, and equipment line sizing across UPW, reclaim, and wastewater process units.
• Review and approve vendor technical submittals, equipment data sheets, instrument specifications, and component selections (e.g., pumps, resin vessels, RO/EDI skids, UV systems, ozone destructors).
• Coordinate closely with Mechanical, Piping, Electrical, and Automation teams to resolve technical interfaces and develop process control philosophy.
• Assist in pre-commissioning, chemical cleaning/sanitization, flushing, and media/resin loading sequences.
• Troubleshoot operational bottlenecks, process instabilities, and analytical anomalies during startup phases.
• Serve as the primary technical point of contact for client representatives, owners' engineers, and managing contractors during the execution phase.
• Prepare comprehensive operations and maintenance (O&M) manuals, process testing protocols, commissioning procedures, and final validation documentation for handover.

Requirements

Demonstrated hands-on experience with process design and execution for semiconductor or microelectronics water systems.

• Experience with UPW Systems: MMF, Softeners, RO, EDI, Degasification (Membrane Contactor/Vacuum), UV (TOC reduction & disinfection), Mixed Bed Polishers, Ultrafiltration (UF).
• Experience with Wastewater & Reclaim: Fluoride precipitation, AWN neutralization, MBR, High-Recovery RO, IX Reclaim systems, Ozone Destructors/Advanced Oxidation.
• Technical Skills: Proficiency in fluid hydraulics, mass balances, PFD/P&ID development, HAZOP participation, and equipment sizing software.