Full-Time

Process & Facilities Engineer / Senior Engineer

Facilities & Engineering

Posted on 9/15/2025

Celgard

Celgard

201-500 employees

High-performance membranes for energy storage

No salary listed

The Woodlands, TX, USA

In Person

Category
Process Engineering
Required Skills
Data Analysis
Requirements
  • Bachelor’s degree in engineering, Facilities, or related technical field (or equivalent experience).
  • 3-5 years of experience in facilities engineering, maintenance, or operations in a GMP-regulated environment.
  • Solid knowledge of facility systems: HVAC, BMS, EMS, cleanrooms, electrical, plumbing, and water systems.
  • Experience with equipment qualification (IQ/OQ/PQ) and validation of process/lab equipment under cGMP.
  • Experience with CMMS and GMP documentation systems.
  • Familiarity with FDA, EU Annex 1, ISPE Baseline Guides, and industry EHS best practices.
  • Excellent troubleshooting, problem-solving, and technical communication skills.
  • Demonstrated ability to manage vendors, projects, and maintenance programs.
  • Able to lift up to 50 lbs and work in varied environments (mechanical rooms, rooftops, cleanrooms).
  • Strong organizational skills and ability to multitask across priorities in a fast-paced setting.
Responsibilities
  • Perform, manage or oversee preventive and corrective maintenance on GMP-critical utilities: HVAC, compressed gases, cryogenics, cleanroom systems, etc.
  • Lead or support equipment validation efforts, including protocol generation, execution, and final report compilation.
  • Monitor and maintain environmental conditions (temperature, RH, pressure) via BMS/EMS systems to ensure GMP compliance and audit readiness.
  • Monitor critical parameters (e.g., temp, RH, DP) using BMS/EMS systems; respond to deviations and maintain control environments per Annex 1 and FDA expectations.
  • Maintain and improve calibration and PM programs, using CMMS to track assets, work orders, and compliance records.
  • Own or support commissioning, qualification (IQ/OQ/PQ), and validation for process equipment (FAT/SAT).
  • Own or support commissioning, qualification (IQ/OQ/PQ), and validation for clean utilities (e.g., WFI, RO/DI, HVAC, BSCs, autoclaves) in accordance with GMP and validation protocols.
  • Ensure adherence to cGMP and GDP standards across all documentation and facility operations.
  • Act as SME or system owner for designated utilities or equipment. Support audits, deviations, CAPAs, and change controls.
  • Oversee maintenance of site infrastructure electrical, plumbing, fire safety, lighting, structural, and automation systems.
  • Monitor Building Management Systems (BMS), respond to alarms, and support utilities integration.
  • Coordinate and supervise contractor/vendor activities ensuring adherence to GMP, EHS, and internal SOPs.
  • Manage small facility projects (e.g., room upgrades, equipment installations, relocations).
  • Ensure spare parts, tools, and critical consumables are tracked and available to minimize client and internal programs downtime.
  • Participate in facility expansions, renovations, or lab buildouts; provide specifications and design input.
  • Interface with architects, engineers (A&E), and construction teams to provide input on design specifications and user requirements.
  • Lead or assist in implementation of automation, asset management systems (CMMS, Historian), and clean utility projects.
  • Support equipment selection, procurement, FAT/SAT, and onboarding to operational readiness.
  • Drive operational excellence through data-driven analysis, process optimization, and cross-functional engagement.
  • Support implementation and enforcement of Environmental, Health, and Safety (EHS) protocols in labs, GMP suites, mechanical spaces, and contractor-managed areas.
  • Conduct or assist in EHS risk assessments, inspections, and incident follow-up activities. Ensure all facility work is conducted safely, using LOTO procedures, PPE, and applicable permit systems.
Desired Qualifications
  • Solution-oriented (comes with answers, not just problems)
  • Resourceful (can navigate constraints, prioritize, and mobilize support)
  • Anticipate potential roadblocks early, develop mitigation strategies, and communicate them proactively to stakeholders.

Celgard makes and sells high-performance membrane materials and thin separators used inside batteries, as well as fabrics for outdoor apparel and medical PPE. The membranes sit between battery electrodes to prevent contact while allowing ions to pass, enabling safe and efficient operation in lithium-ion and other chemistries. The company stands out through its Asahi Kasei Group affiliation and strategic alliances (such as with Æsir Technologies) to pursue new battery chemistries, while expanding manufacturing capacity. Its goal is to provide reliable membranes and protective fabrics at scale to support safer, longer-lasting energy storage and protective textiles, and to drive industry growth through collaborations.

Company Size

201-500

Company Stage

N/A

Total Funding

N/A

Headquarters

Charlotte, North Carolina

Founded

N/A

Simplify Jobs

Simplify's Take

What believers are saying

  • Charlotte plant expansion adds 100 jobs, boosts LIB separator capacity for EVs.
  • Asahi Kasei invests in Hipore wet-process coating lines at Charlotte site.
  • Proven separators serve CATL, Panasonic in high-performance EV, ESS applications.

What critics are saying

  • CATL's in-house separators capture 39% EV market, cut Celgard revenue 10-15% by 2027.
  • SK Innovation, Toray wet-process tech displaces dry-process, erodes share in 12 months.
  • Solid-state batteries from Toyota, QuantumScape eliminate separators by 2028.

What makes Celgard unique

  • Celgard specializes in solvent-free dry-process microporous membranes for lithium-ion batteries.
  • Global facilities in USA, China anchor manufacturing for EV battery separators.
  • Strategic alliances with Æsir, Lithion, C4V target Ni-Zn, LFP, BM-LMP batteries.

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Benefits

Health Insurance

Dental Insurance

Vision Insurance

Life Insurance

Disability Insurance

401(k) Company Match

Paid Vacation

Paid Sick Leave

Paid Holidays

Company News

Yahoo Finance
Jan 29th, 2024
Celgard and Æsir Technologies Forge Strategic Alliance to Drive Industry Innovation in Nickel-Zinc, Zinc-Air and Lithium-Zinc Batteries

Together, Celgard and Æsir will collaborate on joint research projects to further develop high-technology next-generation Nickel-Zinc (Ni-Zn), Zinc-Air (Zn-Air), Lithium-Zinc (Li-Zn) and Sodium-Zinc (Na-Zn) batteries used primarily in aviation, data centers, telecom, energy infrastructure and electric vehicle (EV) charging applications.

Plant Services
Nov 30th, 2023
Celgard expands North Carolina manufacturing plant to support electric vehicle supply chain

Celgard, LLC has announced plans to expand its manufacturing facility in Charlotte, North Carolina, generating 100 new jobs in the process.

PR Newswire
Oct 31st, 2023
Celgard Charlotte Manufacturing Facility To Expand Battery Separator Capacity And Create New Jobs

Celgard to expand facilities, workforce and product portfolio to better serve the EV battery separator supply chain. Post thisThe Biden-Harris Administration and the U.S. Department of Energy (DOE) have identified the domestic U.S. battery market as a critical supply chain focus area for the nation. Investments in Celgard's Charlotte plant will allow the company to expand existing infrastructure to quickly meet demand of the lithium-ion battery (LIB) separator supply chain and domestic customers.Celgard manufactures dry-process membrane separator also used in vehicle electrification. The company already has a skilled employee base capable of applying technical coatings to base film shipped from Hipore™ sister locations and completing finishing steps required to meet customer specifications

Tamarindo
Jun 13th, 2023
Celgard & Lithion Battery form battery storage alliance | Tamarindo

US-headquartered Celgard, a subsidiary of Polypore International, has formed a strategic alliance with Lithion Battery, whereby the two companies will undertake joint development of battery separators for lithium-ion cells for energy storage systems and microgrids.

PR Newswire Asia
Jun 7th, 2023
Celgard Takes Another Step In Energy Storage Growth As It Forms Strategic Alliance With Lithion Battery For Next-Generation Battery Cells

CHARLOTTE, N.C., June 7, 2023 /PRNewswire/ -- Celgard, LLC (Celgard), a subsidiary of Polypore International, LP (Polypore), is pleased to announce a newly formed strategic alliance with Lithion Battery, Inc. (Lithion), whereby the two companies will undertake joint development of battery separators for next generation lithium-ion cells with Lithium Iron Phosphate (LFP) cathode material. Through this collaborative effort, the companies will meet the ever-growing demand of supplying consistent power to those in need with energy storage systems (ESS) for uses such as micro-grid power applications. The cells could also be deployed in medical tools and military and industrial markets, where Celgard has been providing separator solutions for decades.

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