E-Commerce Marketplace Manager – Amazon, Walmart

• Own and execute the end-to-end strategy, listing setup, and launch of ToolBox Widget’s catalog on Walmart Marketplace
• Transition Amazon Seller Central operations (FBA and FBM) in-house, establishing SOPs and eliminating agency reliance
• Build and manage per-SKU contribution margin P&L models accounting for platform fees, ad spend, storage costs, and freight
• Create, optimize, and manage Sponsored Products, Brands, Display, and Walmart Connect advertising campaigns
• Ensure catalog integrity, rich media, A+ content, variations, and compliance across all active SKUs on all marketplaces
• Manage inventory forecasting, reorder triggers, and stock allocation with 3PL partners and internal teams
• Coordinate marketplace pricing with DTC and wholesale strategies to prevent MAP erosion and channel cannibalization
• Troubleshoot seller account issues, including case creation, listing suppressions, Brand Registry, and reimbursement claims
• Launch Walmart Marketplace within the first 120 days and transition Amazon management fully in-house
• Work with executive leadership, internal content creators, and PPC specialists to drive marketplace profitability and optimize contribution margins

• 3+ years of hands-on experience as an Amazon Seller Central operator managing account health, listing creation, and Brand Registry
• Demonstrated hands-on experience with Walmart Marketplace, including item setup, catalog health, WFS vs. seller-fulfilled setups, and Walmart Connect
• Direct hands-on experience running and optimizing PPC campaigns on both Amazon Seller Central and Walmart Connect
• Strong P&L literacy with the ability to analyze unit economics, contribution margins, and platform fee structures
• Experience with e-commerce inventory forecasting, stock allocation, and 3PL fulfillment operations
• High level of autonomy, ownership mindset, and experience collaborating with cross-functional creative and marketing teams
• Fluent English is mandatory
• Must be based in Latin America
• Prior experience transitioning marketplace management from an external agency to an in-house operation
• Familiarity with Shopify integration and multi-channel e-commerce architectures
• Experience in tools, hardware, automotive accessory, or consumer hardlines categories
• Hands-on experience selling on eBay, Target Plus, or international marketplaces (UK, AU, CA, EU)

• Competitive compensation in USD
• Fully remote work within Latin America with flexible time schedules
• Career growth with international clients and dynamic projects
• Long-term independent contractor agreement
• No additional benefits such as paid time off, health insurance, etc.