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ENTEK

Manufactures battery separators and extrusion solutions

Polymer Scientist

Full-TimeUpdated on 10/23/2026
$115k - $130k/yr
Mid, Senior
PhD
Lebanon, OR, USA
In Person
Manufacturing & Process EngineeringProcess Engineering

About the job

Requirements
  • Strong background in porous materials and polymer science.
  • Expertise in porous materials and polymer science.
  • Ability to lead engineers and production teams through high-level projects and experiments.
  • Ability to provide direct technical service support to key customers as the technical representative of the company.
  • Strong problem-solving skills and ability to develop innovative solutions.
  • Ability to work in a team environment with cross-functional professionals.
  • Strong written and verbal English skills.
  • Presentation skills.
  • Computer proficiency.
  • More than 3 years of experience, including postdoctoral fellowship experience if applicable.
  • A Ph.D. degree or equivalent work experience in polymer science, materials science, or chemical engineering.
  • Ability to work in a fast-paced manufacturing environment.
  • Ability to follow safety procedures and regulations.
  • Ability to follow Lean manufacturing tools and work-area standards, including Kaizens, 5S, and RIEs.
  • Ability to occasionally lift or move up to 30 pounds, frequently lift or move up to 40 pounds, and occasionally lift or move up to 50 pounds.
  • Ability to talk or hear frequently, and to stand, walk, or sit for extended periods occasionally; close vision, color vision, and ability to adjust focus.
Responsibilities
  • Collaborate with Engineering, the Process Technologist, and the Quality Manager to solve process problems, minimize variability, and improve current microporous membrane production processes.
  • Work with R&D to schedule production trials to improve product performance or create new products using extrusion-extraction technologies.
  • Document production trials and characteristics of resulting membranes, and work with the Process Technologist to implement standard run conditions for new products.
  • Prepare monthly R&D reports on technical activities.
  • Work with the CTO to develop new membrane concepts or characterization methods.
  • Interface with key customers and provide direct technical service support as required.
  • Develop technical presentations for quarterly meetings.
  • File provisional patents on new developments.
  • Develop models for transport properties through microporous membranes.
  • Investigate characterization techniques for pore-size distribution, such as small-angle X-ray scattering and NMR, and for pore interconnectivity.
  • Maintain safe operations by adhering to safety procedures and regulations.
  • Represent the company professionally when interacting with staff, suppliers, customers, and partners.
Desired Qualifications
  • Prior experience in UHMWPE gel processing, blown film technology, characterization of porous materials, experimental design, and Lean principles.
  • Prior experience in research and development of breathable membranes or filtration membranes.
  • Background in basic statistics, experimental design, and Minitab software.

About the company

ENTEK makes battery separators and extrusion equipment and services for energy storage and manufacturing customers worldwide. It focuses on lead-acid and lithium-ion separators, plus extruders and engineering services, all designed and built with in-house engineering, machining, and fabrication. Its products work by enabling safe, efficient energy storage: separators sit between battery electrodes to prevent short circuits while allowing ion flow, and extruders craft the polymer films and components used in separators. ENTEK differentiates itself through its vertical integration (in-house design, machining, fabrication), global reach across six continents, and a services-driven model that combines product sales with specialized engineering and support. The company aims to deliver reliable, best-in-class equipment and solutions through continuous improvement and decades of industry experience to meet the needs of battery manufacturers and industrial customers.

Company Size

201-500

Company Stage

Grant

Total Funding

$200M

Headquarters

Lebanon, Oregon

Founded

1988

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Simplify's Take

What believers are saying

  • DOE disbursed $77.2 million on September 17, 2025, confirming project execution.
  • ENTEK targets 700 million square meters from Phase 1 by Q4 2026.
  • The Kore Power separator supply deal runs through at least 2031, securing demand.

What critics are saying

  • USACE wetlands and wastewater permits still gate Terre Haute, delaying Phase 1 beyond Q4 2026.
  • Conley v. Entek Manufacturing, LLC filed November 25, 2025, signals employee dispute exposure.
  • A failed Indiana ramp strands $1.3 billion DOE financing and ENTEK’s separator expansion.

What makes ENTEK unique

  • ENTEK is North America’s only U.S.-owned wet-process lithium separator maker, updated August 2026.
  • ENTEK holds patented multilayer separator technology and solvent-recovery know-how, updated July 2026.
  • ENTEK vertically integrates extruders, membranes, and engineering services from Oregon and Nevada.

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Benefits

  • Flexible Work Hours

Growth & Insights and Company News

6 month growth

15%

1 year growth

13%

2 year growth

13%
ENTEK
Apr 24th, 2026
BCI Convention & Power Mart Expo.

BCI Convention & Power Mart Expo. ENTEK International is proud to be the Diamond Sponsor for this year's BCI Convention & Power Mart Expo. The BCI Convention + Power Mart Expo is more than a meeting - it's where the battery industry comes together to set priorities, share solutions, and spark the collaborations that move business forward. From thought-provoking sessions to an expo floor filled with innovation, the convention delivers unmatched opportunities to learn, connect, and engage with the leaders shaping the future of energy storage. Visit ENTEK International at Booth 201.

Batteries International
Mar 11th, 2026
Supplier award honour for ENTEK Asia.

Supplier award honour for ENTEK Asia. March 11, 2026: ENTEK Asia has scooped a prestigious supplier of the year award from Tokyo-based Energywith. The Asian arm of the lead and lithium battery separator group said on March 6 it had been presented with the award last month. Energywith, whose business includes battery systems that monitor the status of power supply systems and lead acid batteries for forklifts, said the annual award is presented to a supplier that has made outstanding quality improvements, on-time delivery, cost reductions, and significant efforts to preserve the environment. The company also produces a range of backup power systems, together with battery storage for various applications including communications equipment, datacenters and substations. Energywith president Shoichi Hirota presented the award in Tokyo to ENTEK Asia president Rob Keith and MD Daigo Furuichi. In 2024, ENTEK won BCI's annual Innovation Award for its solvent-free separator technology.

Business Wire
Sep 18th, 2025
I Squared Capital Acquires Majority Stake in ENTEK to Reshore Critical U.S. Battery Manufacturing

I Squared Capital (“I Squared”), a leading global infrastructure investment manager, today announced it has signed a definitive agreement to acquire a majori...

TXF
Sep 18th, 2025
I Squared makes $800 million investment in ENTEK

ENTEK Technology Holdings has secured a majority investment of $800 million from I Squared Capital to build the first US lithium-ion battery separators gigafactory.The investment is complemented by a loan from the US Department of Energy's Advanced Technology Vehicles Manufacturing programme...

FinancialContent
Sep 17th, 2025
I Squared Capital Acquires ENTEK Stake

I Squared Capital has acquired a majority stake in ENTEK to support the reshoring of critical U.S. battery manufacturing.