Lead Poshmark’s strategic supply partnerships across brands, retailers, resale ecosystems, enterprise sellers, and power sellers. Own supply growth strategy, partner acquisition, commercial negotiations, GMV and take-rate performance, onboarding, lifecycle management, and retention. Build a scalable partnerships team and collaborate with Product, Merchandising, Marketing, Trust & Safety, Operations, and Customer Support to improve marketplace liquidity, listing quality, sell-through, pricing alignment, and partner satisfaction.