Principal Engineer, Membrane Engineering

Entegris; Billerica (MA); On-site; USD 140,000 - 185,000; Full time

Benefits offered by this job

Annual bonus eligible

Excellent health, dental and vision

Generous 401(k) match

Flexible work schedule

Job summary

Entegris is seeking a Principal Engineer, Membrane Engineering to lead development of advanced immersion cast membranes for semiconductor filtration. The role covers design, formulation, casting, characterization, and process development across lab, pilot, and production stages.

You will collaborate with R&D, manufacturing, marketing, and quality to drive early-stage technology and scale-up activities for new product introductions, while contributing to IP and cross-functional programs.

Qualifications

• Ph.D. in Chemical Engineering, Materials Science, Polymer Science, Chemistry, or a related field with 5+ years of research experience.
• Proven track record of technical innovation and leadership in membrane technologies.
• Strong problem solving and independent work ethic.
• Deep expertise in membrane materials, manufacturing, filtration science, and separation technologies.
• Experience leading cross-functional programs and influencing stakeholders.

Responsibilities

• Develop and optimize NIPS processes for immersion cast membranes.
• Create novel membrane materials and manufacturing processes for differentiated products.
• Conduct lab and pilot-scale trials; support scale-up and production runs.
• Analyze membrane performance using porometry, SEM, mechanical testing, and permeability tests.
• Document experiments and present findings to stakeholders.
• Lead IP generation through patents and invention disclosures.
• Collaborate with operations and procurement for cost, performance, and timelines.
• Troubleshoot material, process, or equipment issues in membrane development.
• Maintain EH&S compliance and safety in the lab.
• Engage with customers and technical teams as needed.

Skills

Membrane materials

Cross-functional leadership

Communication

Problem solving

Independent work

Scientific curiosity

Team collaboration

Safety compliance

Education

Ph.D. in Chemical Engineering / Materials Science / Polymer Science / Chemistry or related field

Tools

SEM

Porometry

Mechanical testing

NIPS process development

Job description

Job Title: Principal Engineer, Membrane Engineering

Job Description

Position Summary

The Membrane 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, development of novel membrane fabrication processes 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 scale up activities that support new product introduction.

Responsibilities

• Develop and optimize nonsolvent induced phase separation (NIPS) processes for producing immersion cast membranes.
• Develop novel membrane s through innovation in materials, membrane structures, and manufacturing processes, creating differentiated products that deliver breakthrough performance, scalability, and customer value.
• Conduct laboratory scale and pilot scale trials and support manufacturing scale runs.
• Analyze membrane performance using characterization tools such as porometry, SEM, mechanical testing, permeability/retention tests, and chemical compatibility evaluations.
• Document experiments, create technical reports, and present findings to internal stakeholders.
• Lead intellectual property generation efforts by identifying patentable innovations and contributing to patent applications, invention disclosures, and freedom-to-operate assessments.
• Partner closely with operations and manufacturing teams to ensure robust process development, process optimization, and successful product launches.
• 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

• Ph.D. in Chemical Engineering, Materials Science, Polymer Science, Chemistry, or a related field, with at least 5 years of research experience and a demonstrated track record of technical innovation, scientific leadership, and development of advanced membrane technologies from concept through commercialization
• Genuine passion for scientific research, experimentation, and problem solving.
• A strong can do attitude, with the ability to tackle challenges proactively and independently.
• Deep expertise in membrane materials, membrane manufacturing processes, filtration science and separation technologies.
• Proven hands-on experience developing and evaluating novel membrane materials and processes, from laboratory-scale concepts through prototype validation.
• Demonstrated record of innovation and creative problem solving in the field of membrane formation.
• Proven ability to lead cross-functional programs and influence stakeholders without direct authority.
• Excellent communication, presentation, and customer-facing skills.

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.

What We Offer

• Compensation: $140,000 to $185,000 per year with actual pay dependent on candidate
• Annual Bonus Eligible
• Generous401(K) plan with an impressive employer match
• Excellenthealth, dental and vision insurance packages to fit your needs
• Flexible work schedule and 11 paid holidays a year
• Paid time off (PTO)policy that empowersyouto take the timeyouneed to recharge
• Education assistance to support your learning journey
• Values-driven culturewith 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 opportunitytoall 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.