Senior Lead Engineer UPW​/WW Exentec

Discover your exciting role

The Senior Lead Engineer UPW/WW serves as Exentec’s senior-most technical authority for high-purity water (UPW), RO/DI, reclaim/reuse, and industrial wastewater treatment (IWT) systems supporting semiconductor fabs, advanced manufacturing sites, and mission-critical data centers. This role provides deep technical leadership across design, system performance, operations, troubleshooting, reliability engineering, contamination prevention, and environmental compliance. The Senior Lead Engineer UPW/WW establishes global engineering standards, leads complex investigations, ensures water quality and environmental stability, and provides high-level support for both facility expansions and high-volume daily operations.

The role also interfaces with clients and supports new business pursuits by articulating Exentec’s technical approach and capabilities. Operating in a 24×7 environment, this position requires exceptional technical depth, rigorous quality discipline, and the ability to support global teams with urgency and precision.

• Serve as the global Subject Matter Expert (SME) for:
• Ultra Pure Water (UPW)/RODI systems: MMF, RO, EDI, mixed beds, degas, TOC UV, sterilization UV, UF, distribution loops
• Industrial Waste Treatment (IWT) including acid/alkali neutralization, metals removal, oxidizers, ammonia treatment, biological systems, sludge handling
• Wastewater reclamation, including RO reclaim, microfiltration, and high-recovery water systems
• Maintain Exentec’s global engineering standards, design criteria, material specifications, FAT/SAT/commissioning protocols, and quality thresholds.
• Review and approve designs, P&IDs, PFDs, process control strategies, analytical equipment selections, and hydraulic modeling.
• Provide technical sign-off for modifications, system upgrades, MOC reviews, and energization/startup plans.
• Own water quality standards and ensure compliance with client specifications and industry norms (ASTM DI/UPW, SEMI F063/F064, etc.).
• Lead failure mode analysis, contamination investigations, abnormal water events, and system upsets.
• Develop high-reliability strategies for UPW, RO/DI, and IWT infrastructure, including redundancy planning and critical component monitoring.
• Oversee capacity planning, quality trending, response matrices, and predictive analysis.
• Analyze SCADA/PLC data for performance optimization, membrane health, mixed bed performance, oxidation events, and reclaim variability.
• Provide Tier-3 engineering support to global sites for complex water-related issues
• Develop corrective actions, engineering countermeasures, and recovery plans for water quality deviations.
• Support emergency response during critical water events affecting fab tools, environmental discharge, or facility uptime.
• Ensure compliance with environmental permits, discharge limits, hazardous waste regulations, and chemical handling requirements.
• Lead environmental risk assessments, spill response strategies, and incident investigations for water systems.
• Establish safe procedures for chemical injection systems (antiscalant, SBS, caustic, acid, ferric, polymer, chlorine, UV, etc.).
• Drive global compliance with safety standards and facility-level requirements for handling high-risk water treatment chemicals.
• Develop training programs for:
• UPW fundamentals and distribution
• RO/DI fundamentals and membrane diagnostics
• IWT processes, sampling, and regulatory compliance
• Contamination prevention and response
• Water analytical instrumentation (TOC, Na, Si, DO, resistivity, pH, turbidity)
• Mentor engineers and technicians, strengthen technical talent, and lead global knowledge-sharing.
• Build internal databases, lessons learned repositories, troubleshooting guides, and instrumentation calibration standards.
• Support creation of digital tools for water quality dashboards, reclaim optimization, lifecycle tracking, and automated reporting.
• Develop Auditing program to ensure sites are compliant with service delivery expectation
• Act as the technical lead during client discussions on water quality requirements, discharge standards, optimization strategies, and capacity needs.
• Provide…