Materials Engineer: Cross-Product Material Innovation

Loop Earplugs; Amsterdam; Hybrid; EUR 60,000 - 80,000; Full time

Job summary

Loop Earplugs is seeking a Materials Engineer to shape the materials behind every Loop product. You will be the materials expert across multiple product programs, guiding material selection, validation, and problem-solving with Product Design Engineering, Quality, Industrial Design, CMF, Product Management, suppliers, and manufacturing partners.

You will work across foams, fabrics, adhesives, coatings and finishes, define performance requirements early, develop testing methods, interpret data,

Qualifications

• 4+ years of experience in materials engineering, materials science, or related role within physical consumer products.
• Deep knowledge of materials such as foams, fabrics and textiles, adhesives, coatings, finishes.
• Strong understanding of fabrics and softgoods materials, dyeing methodologies, and relevant manufacturing processes.
• Hands-on experience defining material requirements and developing or executing material validation and testing methodologies.
• Experience working with suppliers, manufacturing partners, Engineering, Design, and Quality teams.

Responsibilities

• Guide product teams on material selection and trade-offs across comfort, durability, acoustic performance, cosmetics, manufacturability, sustainability, and cost.
• Define and refine material performance requirements early in product development and ensure validation before progression.
• Develop and execute material testing and validation methods, turning test data into clear recommendations and specifications.
• Investigate material-related product issues, identify root causes, and drive cross-functional solutions.
• Partner with Quality to ensure materials meet robustness, safety, compliance, and certification requirements.
• Work with suppliers and manufacturing partners to identify and develop materials, fabrics, finishes, coatings, and adhesion methods that meet product needs.
• Bring material expertise into design reviews and development decisions, making material risks and trade-offs visible early.
• Research new and emerging materials, technologies, coatings, and manufacturing processes that could unlock future Loop products.
• Build Loop's materials knowledge base and make complex material concepts accessible to teams beyond materials engineering.

Skills

Materials engineering

Materials science

Materials development

Testing methodologies

Job description

Loop Earplugs is seeking a Materials Engineer to shape the materials behind every Loop product. You will be the materials expert across multiple product programs, guiding material selection, validation, and problem-solving with Product Design Engineering, Quality, Industrial Design, CMF, Product Management, suppliers, and manufacturing partners.

You will work across foams, fabrics, adhesives, coatings and finishes, define performance requirements early, develop testing methods, interpret data,