Engineer II, Membrane Development Engineer

Position Summary: 

The Membrane Development Engineer will play a key role in the design, development, and optimization of advanced membrane materials used in semiconductor filtration applications. This role involves hands on formulation, casting, and characterization of immersion cast membranes, as well as collaboration with cross functional teams in R&D, manufacturing, marketing, and quality. The engineer will contribute to both early stage technology development and scaleup activities that support new product introduction. 

Responsibilities: 

• Develop and optimize nonsolvent induced phase separation (NIPS) processes for producing immersion cast membranes.

• Formulate polymer solutions, design experiments, and evaluate membrane morphology, performance, and reliability.  

• Conduct laboratory scale trials and support pilot scale or manufacturing scale runs.  

• Analyze membrane performance using characterization tools such as porometry, SEM, mechanical testing, permeability/retention tests, and chemical compatibility evaluations.  

• Collaborate with process engineering to transfer technology from lab scale to production.  

• Document experiments, create technical reports, and present findings to internal stakeholders.  

• Work with procurement, marketing, and product management to support cost, performance, and timeline objectives.  

• Troubleshoot material, process, or equipment issues related to membrane development.  

• Maintain safe laboratory practices, following all EH&S protocols.  

• Support customer interactions and technical discussions as needed. 

Qualifications and Preferred Skills: 

• Bachelor’s or Master’s degree in Chemical Engineering, Materials Science, Polymer Science, Chemistry, or a related field.  

• Genuine passion for scientific research, experimentation, and problem solving.  

• A strong can-do attitude, with the ability to tackle challenges proactively and independently.  

• Experience with membranes, polymers, or porous materials (academic research, internships, or industrial work).  

• Strong fundamental understanding of transport phenomena, polymer chemistry, thermodynamics of polymer solutions, polymer phase separation and rheology.  

• Handson experience with solution preparation, wet chemistry, materials processing, or related laboratory work.  

• Familiarity with analytical and materials characterization techniques (SEM, FTIR, porometry, mechanical testing, etc.).  

• Excellent communication skills and ability to work collaboratively in a crossfunctional environment. 

Physical Requirements: 

• Ability to work in a laboratory setting for extended periods, including standing, walking, and performing hands-on experiments.  

•  Ability to lift and handle laboratory materials, chemical containers, or equipment up to approximately 25–30 pounds.   

• Manual dexterity for operations such as membrane casting, sample preparation, and equipment setup.  

•  Comfortable wearing appropriate personal protective equipment (PPE), including lab coats, gloves, safety glasses, and, when required, respirators.   

• Ability to work safely with chemicals, solvents, and laboratory tools following established safety procedures.  

• Visual acuity to accurately perform experimental work, observe membranes, and read instruments or displays. 

Why Work At Entegris?

Lead. Inspire. Innovate. Define Your Future.

Not everyone who works for a global company shares the same background, experiences and perspectives. We leverage the differences of our employees to bring new ideas to the table. Every employee throughout the company is encouraged to share input on projects and initiatives. Our decision-making process is truly a collaborative effort as we realize there are leaders at every level of the organization. We put our values at the core of how we operate as an organization — not just when it’s convenient, but in a lasting and meaningful way. We want the time and energy you spend here to have a positive impact on your life inside and outside of the office.

What We Offer

Our total rewards package goes above and beyond just a paycheck. Whether you’re looking to build your career, improve your health, or protect your wealth, we offer generous benefits to help you achieve your goals.

• Compensation: $79,500- $99,500 per year range with actual pay dependent on candidate overall skills for the role

• Annual bonus eligibility

• Progressive paid time off policy that empowers you to take the time you need to recharge

• Generous 401(K) plan with an impressive employer match with no delayed vesting 

• Excellent health, dental and vision insurance packages to fit your needs

• Education assistance to support your learning journey

• A values-driven culture with colleagues that rally around People, Accountability, Creativity and Excellence

Entegris does not provide immigration-related sponsorship for this role. Do not apply for this role if you will need Entegris immigration sponsorship (e.g., H1B, TN, STEM OPT, etc.) now or in the future.

At Entegris we are committed to providing equal opportunity to all employees and applicants. Our policy is to recruit, hire, train, and reward employees for their individual abilities, achievements, and experience without regard to race, color, religion, sexual orientation, age, national origin, disability, marital or military status.

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