• Develop and execute marketplace strategies aligned with AMain Hobbies’ revenue, margin, and brand goals • Identify growth opportunities across existing and new marketplaces • Own marketplace P&L, forecasting, and performance reporting • Oversee product onboarding, listings, and content optimization (titles, bullets, images, A+ content, attributes, SEO) • Ensure catalog accuracy, compliance, and suppression resolution • Manage assortment strategy by marketplace, including exclusives and channel-specific SKUs • Manage pricing strategy to remain competitive while protecting margins • Plan, execute, and analyze promotions, deals, and marketplace events (Prime Day, Black Friday, etc.) • Monitor fees, advertising costs, and operational expenses to optimize profitability • Own marketplace advertising strategies (Amazon Ads, Walmart Connect, eBay Promoted Listings, etc.) • Optimize spend, ROAS, and campaign structure in partnership with internal or external teams • Leverage marketplace tools and data to drive visibility and conversion • Manage fulfillment strategy (FBA, FBM, 3PL, dropship where applicable) • Monitor account health metrics, performance standards, and policy compliance • Resolve escalations related to account issues, claims, returns, and customer feedback • Partner with Merchandising, Marketing, Supply Chain, Customer Service, and Content teams • Align inventory planning and demand forecasting with marketplace needs • Support new product launches and brand initiatives across marketplaces • Track KPIs including sales, margin, conversion, buy box, ad performance, and inventory health • Deliver regular performance reporting with actionable insights • Stay current on marketplace trends, policy changes, and competitive landscape