Hobby & Stationary & Office Category Supervisor

Get ready to take your place on n11, an open market platform has made valuable contributions to the e-commerce sector since its establishment by bringing more than 330 thousand registered business partners to customers What you'll do Commercial & Analytical Competencies Own the commercial performance of the Hobby, Stationery & Office Supplies categories by managing revenue, profitability, assortment, and subsidy efficiency. Make data-driven decisions on pricing, promotions, commissions, and campaign investments to maximize category growth. Analyze seller, brand, product, and subcategory performance to identify growth opportunities and improve commercial outcomes. Conduct competitor and market analyses to strengthen assortment, pricing, and category positioning. Monitor key category KPIs such as GMV, conversion, average basket size, margin, and subsidy profitability. Category Strategy & Assortment Management Develop and execute category strategies aligned with customer needs, seasonal demand, and market trends. Expand the category by onboarding new brands, strategic suppliers, and high-potential sellers. Optimize product assortment across key segments including stationery, office supplies, school products, art & craft, hobby materials, and organization solutions. Track seasonal trends such as Back-to-School, Office campaigns, New Year, and creative hobby periods to maximize sales opportunities. Seller Management & Communication Manage and develop strategic seller relationships to increase assortment, sales performance, and operational excellence. Lead commercial negotiations regarding pricing, promotions, campaigns, and annual business plans. Monitor seller performance through objective KPIs including GMV, order fulfillment, cancellation rate, pricing competitiveness, and customer satisfaction. Coach sellers on marketplace best practices and support their sustainable growth within the platform. Operational Planning & Execution Plan and execute category-specific campaigns, promotional activities, and seasonal events. Coordinate campaign participation, stock availability, pricing accuracy, and promotional readiness with sellers. Work closely with cross-functional teams to ensure seamless campaign execution and customer experience. Teamwork & Reporting Collaborate with Marketing, Campaign, Finance, Supply Chain, Product, and Operations teams to achieve category targets. Prepare regular business reviews, performance reports, and commercial insights for senior management. Support strategic initiatives and continuous improvement projects within the category. Who you are Bachelor's degree in Business Administration, Economics, Industrial Engineering, Marketing, or a related field. Minimum 4–5 years of experience in Category Management, Buying, Commercial Operations, Key Account Management or Marketplace Management, preferably within Hobby, Stationery, Office Supplies Strong commercial mindset with proven experience in revenue and profitability management. Advanced Excel skills and strong analytical capabilities; experience with reporting and data-driven decision making. Excellent communication, negotiation, and stakeholder management skills. Ability to manage multiple priorities in a fast-paced and dynamic environment. Curious about e-commerce trends and customer behavior, with a passion for continuous learning. Previous experience working in an e-commerce marketplace is highly preferred. Familiarity with the n11 ecosystem, seller panel, campaign structure, and marketplace dynamics is a plus. An analytical mindset capable of contributing to category growth, assortment optimization, seller segmentation, and commercial decision-making. As n11, we care about your Personal Data Security. Please find the Personal Data Protection Information Notice from the link below. https://n11scdn1.akamaized.net/custom/aydinlatma-metni/People-Aydinlatma-Metni.pdf