Marketplace , Senior Manager

Position: Marketplace Growth, Senior Manager
We are looking for a senior marketing leader to drive marketplace performance across major ecommerce channels for a fast-moving advertising business in Los Angeles, California. This role will guide growth strategy for Amazon, Walmart, and Tik Tok Shop while partnering closely with internal teams and external agencies to improve sales, profitability, and execution. The ideal candidate combines strong analytical judgment with confident channel ownership and can translate marketplace insights into clear action plans that support multiple brands.

Responsibilities:
• Lead marketplace growth plans across Amazon, Walmart, and Tik Tok Shop, aligning channel strategy with revenue goals, promotional priorities, and brand objectives.
• Serve as the primary internal owner for marketplace performance, coordinating with agency partners and cross-functional teams to keep initiatives on track and results measurable.
• Build forecasts for sales volume and inventory demand across brands and channels, using forward-looking analysis to support planning over the coming months.
• Review reporting with finance and accounting teams, investigate discrepancies, and validate data to ensure business decisions are based on accurate marketplace performance metrics.
• Manage operational issues that affect listings and product availability, including platform tickets, documentation, and coordination with supply chain and operations partners.
• Evaluate promotional opportunities and discount requests, confirming alignment with profitability targets, media investment levels, and broader business goals before execution.
• Monitor channel-level advertising spend and performance by brand, recommending adjustments that improve efficiency while protecting margin.
• Prepare marketplace insights, strategic recommendations, and presentation materials for leadership to support planning around key events and growth opportunities.
• Partner with internal stakeholders to strengthen marketplace management processes and support the gradual expansion of in-house channel capabilities where appropriate.