He is also a Co-Founding Partner at Cherry Ventures Management. He serves as Board Member at Amboss, and Joblift. He served as Board Member at Morressier and Curio Labs. He previously co-founded and served as its Managing Director and Board Member at Tamundo. He serves as Chief Executive Officer at Zalando. He founded his first company in 2008, an online auction house for antiques and collectables. He then joined the founding team of Zalando (today, Europe's biggest online fashion retailer with +2,5bn USD in revenue in 2014) as Chief Executive Officer of the group's shopping-club. Up until 2014, he has held several senior executive positions leading the company's international expansion to 15 European markets as well as the overall customer experience and product/mobile for all online shops. He served as Board Member at Joblift. He is a Board member of dashdash. He serves as Board Member at Weengs.