Marketplace Growth, Senior Manager

About the role

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 TikTok 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 TikTok 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.

Requirements

• Proven experience managing growth and performance within ecommerce marketplaces, especially Amazon, with exposure to Walmart and TikTok Shop strongly preferred.
• Strong strategic planning skills with the ability to look ahead, prioritize effectively, and guide channel direction with confidence.
• Demonstrated success owning marketplace channels and being accountable for business results across multiple brands or product lines.
• Ability to analyze sales, media, and profitability data and convert findings into practical recommendations for stakeholders.
• Experience working cross-functionally with finance, accounting, supply chain, operations, and external agency partners.
• Strong communication and presentation skills, with the professionalism and presence to represent marketplace strategy to senior leadership.
• Comfort operating in a fast-paced environment with multiple priorities, changing conditions, and high expectations for follow-through.

Benefits

• Medical, vision, dental, and life and disability insurance.
• Eligibility to enroll in our company 401(k) plan.

Benefits are available to contract/temporary professionals.