Poshmark is the leading fashion marketplace where style comes alive through discovery, self-expression, and human connection. Powered by a vibrant community of 165 million members, Poshmark brings real people and taste to shopping through a social experience shaped by shared discovery. Buying and selling fashion feels simple, joyful, and personal, while every item tells its own story. Poshmark empowers sellers to grow meaningful businesses, keeps fashion in circulation longer, and gives shoppers access to unique and trusted finds, from everyday pieces to one-of-a-kind vintage and luxury.
Responsible for identifying and developing strategies and programs to onboard and scale strategic supply sources that strengthen Poshmark marketplace liquidity, elevate assortment quality, and drive incremental GMV growth on the platform.
Own the development of strategic relationships with brands, retailers, resale ecosystems, enterprise sellers, and top-tier power sellers to ensure the platform has the “right” supply at the right volume, quality, relevance, and price to drive GMV growth and brand stickiness.
Define and execute the enterprise and strategic supply roadmap across brands, retailers, consignment partners, and large-scale sellers
Identify category opportunities
Build models for partner sourcing, programming, onboarding, enablement, retention, and expansion
Own partner acquisition targets, GMV contribution growth, and take rate
Structure and negotiate commercial terms
Track partner performance across key metrics, including listing quality and activation, sell-through speed, pricing alignment, returns, cancellations, and disputes
Manage relationships and contracts
Build scalable programs for partner onboarding, education, and success
Build a strong partnerships team across acquisition, account management, partner success, and commercial operations
Collaborate with Product and Marketplace teams to ensure partners leverage pricing guidance tools, listing standards and best practices, and campaign and promotional strategies and timelines
Partner with Merchandising to align supply inflow with demand, category health, and trend direction
Work with Product and Product Marketing to shape seller-facing tools, dashboards, and messaging to improve partner businesses
Collaborate with Trust & Safety to uphold Poshmark’s standards around authenticity, fraud prevention, and community trust
Align with Operations and Customer Support to ensure seamless seller and buyer experiences
Provide insights on emerging supply trends and competitive activity
Identify white space opportunities where targeted supply partnerships can unlock growth and/or improve discovery
Share learnings from partners to inform broader seller strategy and marketplace policy
Incremental GMV from strategic supply
Liquidity and sell-through speed in priority categories
Partner retention and satisfaction
Listing quality and pricing alignment
Reduction in issues, returns, and cancellations from managed supply partners
Cross-functional adoption of partner-led learnings
Within the first six months, the Supply Partnerships Director is expected to:
Deliver a clear strategic supply roadmap outlining priority categories, target partner segments (brands, retailers, enterprise sellers, resale ecosystems), and projected GMV impact
Identify and prioritize 3–5 high-impact supply opportunities that address liquidity gaps or unlock incremental growth
Close and onboard an initial cohort of strategic partners aligned to category priorities and pricing standards
Establish a scalable partner lifecycle framework covering sourcing, onboarding, enablement, performance tracking, and retention
Define commercial playbooks, including standard partnership models, negotiation frameworks, and pricing alignment guardrails
Implement performance dashboards to track GMV contribution, listing quality, sell-through speed, cancellations, and partner retention
Build strong cross-functional alignment with Product, Merchandising, Trust & Safety, and Operations to support partner success
Begin assembling and defining the structure for a scalable Supply Partnerships team
Within the first 12 months, the Supply Partnerships Director is expected to:
Deliver measurable incremental GMV growth from strategic supply partnerships, aligned with annual marketplace targets
Improve liquidity and sell-through speed in priority categories through targeted supply acquisition
Establish Poshmark as a preferred marketplace partner for select brands, retailers, and enterprise sellers
Build and scale a high-performing Supply Partnerships team with clear acquisition, account management, and partner success functions
Develop repeatable onboarding and enablement programs that improve partner activation, listing quality, and pricing alignment
Reduce issues, cancellations, and returns associated with managed supply partners through tighter operational and trust standards
Collaborate with Product to influence enhancements to seller tools, pricing guidance, dashboards, and promotional programs informed by partner insights
Deliver competitive intelligence and category insights that shape broader marketplace strategy and supply-side policy
Achieve strong partner satisfaction and retention metrics across managed accounts
8–10+ years of experience in partnerships, business development, marketplace growth, category management, or commercial strategy within ecommerce, retail, resale, or marketplace environments
Proven track record of structuring and negotiating commercial agreements that drive measurable revenue or GMV growth
Strong understanding of marketplace dynamics, including liquidity, supply-demand balance, pricing strategy, and seller performance metrics
Experience working with brands, retailers, enterprise sellers, or resale ecosystems
Demonstrated ability to build and scale partner acquisition and account management programs
Strong commercial acumen with an ownership mindset for revenue, margin, and partner performance metrics
Experience building cross-functional relationships with Product, Merchandising, Operations, Trust & Safety, and Marketing
Analytical orientation with the ability to translate performance data into actionable strategy
Experience leading or building teams preferred
Bachelor’s degree in Business, Marketing, Economics, or a related field (MBA a plus but not required)
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