Supervisor, 3rd Party

We are seeking a knowledgeable, strategic, and driven 3rd Party Marketplace Supervisor to lead and grow our presence across major online marketplaces, including Amazon, eBay, and Walmart. The ideal candidate will have a deep understanding of the automotive performance aftermarket, including fitment data, enthusiast buyer behavior, and competitive brand positioning.

This leadership role will oversee the day-to-day marketplace operations team, guiding strategy for product listings, pricing, promotions, and customer service across all third-party channels. The supervisor will play a key role in driving sales growth, ensuring catalog accuracy, and maintaining a premium brand experience across all marketplace platforms.

Key Responsibilities

• Lead and mentor a small team of marketplace specialists and coordinators, setting goals, priorities, and performance metrics for each channel (Amazon, eBay, Walmart, etc.).
• Oversee all marketplace operations—including listings, pricing, promotions, and customer interactions—to ensure best-in-class execution and alignment with company goals.
• Develop and implement growth strategies for each marketplace, balancing sales targets, brand positioning, and profitability.
• Ensure all listings are accurate and optimized with performance specs, vehicle fitment (year/make/model/engine), rich media, and SEO-driven keywords.
• Maintain and evolve brand storefronts on marketplaces to deliver a consistent, engaging, and premium customer experience.
• Monitor and analyze marketplace KPIs (traffic, conversion rates, sales, feedback) and drive continuous improvement through actionable insights.
• Collaborate cross-functionally with product, data, and marketing teams to ensure catalog accuracy, ACES/PIES compliance, and data-driven optimization.
• Plan and manage promotional campaigns, including Amazon PPC, eBay Promotions Manager, and other marketplace-specific advertising tools.
• Assist with MAP enforcement and coordinate efforts to identify and address unauthorized resellers or counterfeit listings.
• Partner with inventory and logistics teams to maintain healthy stock levels, manage returns, and ensure fulfillment performance meets platform standards.
• Stay current on marketplace policies, trends, and algorithm updates, ensuring compliance and competitive positioning across channels.
• Provide regular performance reports to leadership, identifying opportunities for expansion and efficiency improvement.

Required Qualifications

• 4–6 years of marketplace management experience (Amazon, eBay, Walmart, etc.), including team leadership or supervisory experience.
• Strong understanding of automotive aftermarket products, performance tuning, and enthusiast buyer behavior.
• Proficient with marketplace tools such as Amazon Seller Central, eBay Seller Hub, and optimization platforms (e.g., ChannelAdvisor, Feedonomics).
• Demonstrated experience managing ACES/PIES data and large product catalogs.
• Proven analytical and organizational skills; advanced proficiency with Excel/Google Sheets and data reporting.
• Excellent written and verbal communication skills, with strong attention to detail.
• Experience running and optimizing digital advertising campaigns (Amazon Ads, eBay Promoted Listings, etc.).
• Strong problem-solving and customer service mindset.

Preferred Qualifications

• Experience supervising or training eCommerce/marketplace staff.
• Knowledge of SEO best practices for marketplace listings.
• Familiarity with automotive enthusiast communities and aftermarket trends (off-road, racing, tuning, overlanding, etc.).
• Understanding of MAP enforcement and reseller compliance programs.
• Basic skills in Photoshop or similar tools for image editing a plus.

What We Offer

• Competitive salary performance-based incentives
• Employee discounts on performance parts
• Leadership growth opportunities within a fast-paced, enthusiast-driven organization
• A passionate team culture focused on innovation, quality, and collaboration