Product Application and Development Specialist (Elastoester polymers)

NEOLAST™ is Celanese’s groundbreaking new fiber for performance stretch fabrics—delivering a high‑performance alternative to spandex while enabling true recyclability of stretch textiles. As market interest rapidly grows, we are expanding our team to accelerate innovation, deepen customer support, and deliver better material solutions for both consumers and the planet.

If you’re passionate about next‑generation materials and sustainable design, we invite you to join us.

What YOU Will Do:

In this role, you will be a key technical expert supporting NEOLAST™ product development and adoption across the global textile value chain.

Location:

This position may be based at any of our offices or facilities in Europe. Preferably at our European headquarters in Meyrin.

YOU will be involved in the following tasks:

• Design, plan, execute, analyze and report experimental projects to help in the process and product development of Neolast grades, yarns and fabrics at internal labs or external customers and partners. 
• Provide hands‑on technical support throughout NEOLAST™ yarn qualification, ensuring smooth adoption and high-quality output.
• Lead product validation and testing, supporting spinners in achieving consistent, high-quality performance through best practices and clear documentation.
• Develop and deliver training materials for customers, partners, and internal teams.
• Identify opportunities to improve sustainability and reduce environmental impact in textile processes.
• Work closely with business and commercial teams to connect customer needs with technical insights.
• Collaborate across the full value chain with spinning partners, knitting mills, garment designers, and apparel brands.

What YOU will bring to the team:

• 5+ years of hands‑on technical experience in the textile industry, with strong expertise in melt‑spun fibers, their processing and conversion into fabrics.
• Deep understanding of fiber and polymer structure–process–property relationships.
• Knowledge of fabric manufacturing (e.g., knitting, weaving, covering), fabric design, dyeing, and finishing—preferably with elastic yarns.
• Solid technical understanding of textile production processes, equipment, and materials.
• Excellent interpersonal and communication skills, enabling effective collaboration with global customers and partners.
• Ability to work effectively in international, cross‑functional teams and collaborate across diverse technical and cultural backgrounds.
• Strong ability to independently plan, execute, and document meaningful technical work for problem‑solving and product development.
• A proactive, can‑do attitude and willingness to learn and step into new challenges.
• Fluency in English.
• Willingness to travel internationally up to 30%.

Strong Pluses:

• Understanding of working principles of other polymer conversion processes (e.g. extrusion, injection molding, etc).
• Experience with experimental design; Six Sigma training or certification.
• Familiarity with lean manufacturing principles.