Kosuke Ayama

Junior R & d Product Developer @Vice Sporting Goods GmbH

Munich, DE

Collaborated closely with designers on the development of Vice\'s performance footwear line, supporting concept design, material selection, fit testing, cost optimization, and product launch coordination.• Played a key role in product planning and line-building for golf gloves and footwear, analyzing sales data and market trends to guide seasonal product proposals and lineup adjustments.• Conducted field testing of gloves, footwear, golf clubs, and golf balls to evaluate performance, comfort, and durability in real-world scenarios; synthesized findings to inform design improvements.• Selected and sourced materials in collaboration with suppliers, balancing performance, aesthetics, and cost.• Led quality assurance efforts across multiple product categories by defining QA standards, developing documentation, and aligning supplier outputs with internal expectations.