Senior Chemist, Technical Laboratory Operations

Entegris is currently seeking a Senior Chemist, Technical Laboratory Operations to join our Analytics & Metrology, Trace Metals team. This position will be based in our Burnet facility. 

In this role, you will be responsible for ensuring reliable, high-throughput analytical metrology in a production laboratory supporting semiconductor-grade precursors and wet chemical cleans. This role focuses on measurement execution, data quality, contamination control, and instrument performance to ensure materials consistently meet stringent semiconductor specifications. The position plays a key role in maintaining analytical readiness, resolving production-related issues, and ensuring measurement systems remain stable, precise, and audit-ready. 

What You’ll Do 

• Perform and oversee routine trace metals analysis of semiconductor chemicals using ICP-MS and ICP-OES 

• Analyze and interpret ultra-trace metal impurity data at ppb–ppt levels for production release 

• Review and approve analytical results, ensuring conformance to tight product specifications 

• Ensure consistent achievement of detection limits and sensitivity requirements for key metallic contaminants 

• Conduct all work in cleanroom or clean-controlled environments, following strict contamination control protocols 

• Enforce best practices for ultra-clean sample handling, preparation, and transfer 

• Minimize environmental and cross-contamination sources (labware, reagents, gases, operator technique) 

• Ensure proper gowning, materials handling, and workflow discipline aligned to semiconductor standards 

• Serve as primary technical expert for ICP-MS and ICP-OES systems in a production environment 

• Maintain instrument performance including tuning, calibration, interference control, and drift management 

• Perform advanced troubleshooting of sensitivity loss, background contamination, and instrument instability 

• Ensure system suitability, QC checks, and performance benchmarks are consistently met 

• Support preventive maintenance and coordinate repairs to maximize instrument uptime 

• Monitor and maintain measurement system stability, precision, and reproducibility 

• Apply statistical tools (SPC, trending, control charts) to detect shifts in analytical performance 

• Investigate out-of-spec (OOS), out-of-trend (OOT), and excursion events related to metals analysis 

• Ensure methods remain fit-for-purpose without introducing unnecessary variability 

• Support real-time production decisions through rapid and reliable metals data 

• Lead analytical investigations into contamination events affecting product quality or customer returns 

• Partner with manufacturing and quality teams to identify root causes of metal