Principal Account Manager (ADM and ALD Technology)

The ROLE

Entegris is seeking a Principal Key Account Manager to support our Advanced Deposition Materials accounts across the Southwestern US region. This new hire will own Entegris’ technical‑commercial engagement with key semiconductor equipment OEMs for advanced deposition applications. This role is accountable for program execution, customer credibility, and predictable outcomes across evaluations, qualifications, POR defense, and next‑generation opportunities. 

This role requires a disciplined account leader who is technically fluent, execution‑focused, and comfortable sharing ownership across a highly matrixed organization. Success depends on knowing when to lead, when to defer, and how to align others toward common outcomes. 

This is a highly collaborative, fast-paced OEM account role that combines technical fluency with strong teamwork and operates on the customer’s timeline.   

WHAT YOU'LL DO

• Serve as the single point of accountability for advanced deposition engagement with key OEMs, while actively sharing ownership with R&D, BU, Operations, Quality, and Supply Chain partners. 

• Lead complex OEM evaluations and qualifications as a program manager, ensuring clarity of scope, roles, timelines, and decision points. 

• Leverage subject matter expertise while maintaining clear external ownership and strong internal alignment. Deliver a seamless, coordinated experience for customers through aligned and consistent Entegris engagement  

• Maintain strong technical fluency in ALD and advanced deposition fundamentals to support effective customer and internal engagement, including the ability to:  

• Engage confidently and credibly with customer engineering teams  

• Ask thoughtful, productive questions that clarify customer needs, technical constraints and decision drivers 

• Maintain working familiarity with precursor materials and qualification considerations to engage credibly and support effective decision making  

• Translate customer discussions into clear, well aligned internal actions and priorities   

• Demonstrate strong internal and external communication skills, ensuring clear, targeted information sharing and consistent customer messaging  

• Partner closely with customers by operating at their pace and responding with urgency and agility Lead and influence internal teams to align to the same level of responsiveness and execution excellence . 

• Own execution details across: open order reviews, RMA coordination, quote follow up and status clarity, and escalation management. 

• Proactively identify technical, commercial, supply, and  timing risks and lead effective mitigation efforts. 

• Identify opportunities for sys