The Marketplace Manager Amazon & Shopify at Verlagshaus Schlosser will be responsible for managing and strategically optimizing the company's Amazon and Shopify activities. Key responsibilities include independent management of the Amazon account, planning and optimizing PPC campaigns, analyzing KPIs, and enhancing visibility and sales. The role requires several years of practical experience in Amazon Seller Central and PPC management, alongside proficiency in Shopify and e-commerce processes.