(Senior) Marketplace Manager (m/f/d)

Our mission We are on a mission to save our planet - one second hand product at a time. We are looking for a (Senior) Marketplace Manager, you will lead the strategic and operational growth of our multiple Amazon accounts (which are among the biggest seller accounts worldwide) and other key marketplaces like eBay, Rakuten, and FNAC. You will be responsible for marketplace performance across multiple countries, ensuring account health, operational stability and compliance. Using your expertise in Seller Central and data-driven tools, you will scale our operations, manage risks, and develop smart solutions like fraud detection workflows and risk calculators. You bring strong analytical thinking, a hands-on mindset, the ability to align cross-functional teams (e.g., Finance, Legal, Logistics) and to liaise with your marketplace counterparts. Your mission Own and optimize performance of major marketplaces (Amazon, eBay, Rakuten, FNAC) Safeguard account health and seller metrics through proactive risk management Expand our marketplace presence across Europe and support new market launches Ensure compliance with evolving regulations (e.g. EPR, GPSR, VTR) across multiple countries Together with our tech teams leverage AI-driven tools to automate and scale operations Develop internal tools like fraud detection workflows and risk calculators Your profile Bachelor’s or Master’s degree in Business Administration, E-Commerce, Marketing, Economics, or a related field 5+ years of professional experience in a relevant role with deep knowledge of Amazon Seller Central and hands-on marketplace operations Proven success in account protection and performance management across multiple countries and platforms (e.g. Amazon, eBay, Rakuten, FNAC, BOL) Strong expertise in compliance and the ability to adapt to evolving regulations such as EPR, GPSR, and VTR Skilled in optimizing key performance indicators like delivery times, defect rates, and seller ratings Ability to develop operational tools to boost efficiency and resilience certifications in Amazon Marketplace, E-Commerce compliance, or Digital Marketing are a strong plus Fluency in English is required; German and/or French skills are a plus You can look forward to Flexible working hours: We work according to a hybrid model that offers you maximum flexibility while also fostering important personal connections. Whether in our centrally located office or working remotely - you and your team decide together where and when you want to work. You can arrange your working hours flexibly. For personal interaction, your team meets at least 20 days per quarter in the office, as our team days are held in person. Open work environment : We work together in a bright, open-plan office where even the few existing doors are always open. Our teams are motivated and open to new ideas. Bring your creativity to the table and make things happen! If you need a moment of peace, you can retreat to a cozy corner of the medimops library in the break room, or recharge with a game of foosball, table tennis, or PlayStation. Individual work environment : Design your ergonomic workspace just the way you like it – with height-adjustable desks and the laptop of your choice (MacBook or ThinkPad). If things get a bit noisy in the office, your Bose noise-cancelling headphones ensure uninterrupted focus. If needed, we can also provide you with an ergonomic chair or additional monitors for your home office. Sustainability : We love second-hand and incorporate our sustainable business idea into the office routine with simple methods like using eco-friendly supplies, double-sided printing, energy-saving modes on devices, waste separation, etc. In doing so, we take responsibility and integrate sustainability into all our activities. Training: momox is only as good as you. That's why you will find room and budget for your individual professional development with language classes, internal training, conferences, (online) courses and more. Office dogs : Our office dogs contribute to a relaxed work atmosphere and are always happy to receive some extra cuddles. Reduced ticket for the public transport : Save real money with the Germany or Job Ticket for the Berlin S-Bahn. Sport and fitness offers: During the week, you have the opportunity to take part in various sports activities. Whether it's online training, massages, or stretching at your desk – there's something for everyone. You can also get a discounted membership for Urban Sports Club or Wellhub. Company discounts : As a momoxian, you can look forward to a monthly voucher for our momox Fashion online shop, as well as medimops. Additionally, you benefit from numerous company discounts from our partners. 1/2 day off on your birthday : Celebrate your birthday with half a day of vacation! Come in later, leave earlier, or simply take an additional half day off to have your entire birthday free – provided your birthday falls on a regular working day. Additionally, you g