Principal Engineer, Membrane Engineering

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

Benefits offered by this job

Generous 401(k) employer match

Excellent health, dental and vision

Paid holidays and PTO

Education assistance

Job summary

Entegris, Inc. seeks a Principal Engineer in Membrane Engineering to drive design, development, and optimization of immersion‑cast membranes for semiconductor filtration.

You will lead hands‑on formulation, casting, characterization, and process innovations from concept to commercialization. The role demands collaboration with R&D, manufacturing, marketing, and quality teams, plus pilot and scale‑up activities.

Qualifications

• Ph.D. in Chemical Engineering, Materials Science, Polymer Science, Chemistry, or a related field with at least 5 years of research experience.
• Proven track record of technical innovation and leadership in membrane technologies from concept to commercialization.
• Excellent communication and cross-functional collaboration skills.

Responsibilities

• Develop and optimize NIPS processes for immersion‑cast membranes.
• Create novel membranes through materials, structures, and manufacturing process innovations.
• Conduct lab and pilot scale trials and support manufacturing runs.
• Analyze membrane performance using porometry, SEM, mechanical tests, and permeability tests.
• Document experiments and present findings to stakeholders.
• Lead IP generation and assist with patent work and disclosures.
• Collaborate with operations to ensure robust process development and product launches.
• Support cost, performance, and timeline objectives with procurement and product management.
• Troubleshoot material, process, or equipment issues in membrane development.
• Maintain EH&S practices and safety in the lab.
• Support customer interactions and technical discussions as needed.

Skills

Membrane materials

Membrane manufacturing

Filtration science

Leadership

Communication

Education

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

Job description

Principal Engineer, Membrane Engineering

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 membranes 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
• Generous 401(K) plan with an impressive employer match
• Excellent health, dental and vision insurance packages to fit your needs
• Flexible work schedule and 11 paid holidays a year
• Paid time off (PTO) policy that empowers you to take the time you need to recharge
• Education assistance to support your learning journey
• 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.

At Entegris, we want you to be part of our culture, which values your unique talents, skills, and experiences. We believe what we do is as important as how we do it. People at our company bring their true selves to work, and are appreciated not only for what they do, but for who they are. This plus the technical complexity of our products and solutions means you can be sure your work is both challenging and changing the world for the better. Learn more about why people enjoy working at Entegris.