Strategic Supply Partnerships Director

Poshmark; New York (NY); On-site; USD 180,000 - 260,000; Full time

Job summary

Poshmark is seeking a Supply Partnerships Director in New York to identify and scale strategic supply sources, building relationships with brands, retailers, and large-scale sellers to ensure optimal supply, quality, and pricing for GMV growth.

You will own partner acquisition targets, negotiate terms, and lead cross-functional teams across Product, Merchandising, Trust & Safety and Operations to maximize partner success and marketplace liquidity.

Qualifications

• 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.

Responsibilities

• Define and execute the enterprise and strategic supply roadmap across brands, retailers, consignment partners, and large-scale sellers.
• Own partner acquisition targets, GMV contribution growth, and take rate.
• Structure and negotiate commercial terms.
• Build scalable programs for partner onboarding, education, and success.
• Collaborate with Product, Merchandising, Trust & Safety, and Operations to support partner success.
• Provide insights on emerging supply trends and competitive activity.
• Deliver measurable incremental GMV growth from strategic supply partnerships.

Skills

Partnerships

Business development

Marketplace growth

Category management

Commercial strategy

Analytical thinking

Cross-functional collaboration

Leadership

Education

Bachelor's degree in Business/Marketing/Economics

MBA is a plus

Job description

Poshmark is seeking a Supply Partnerships Director in New York to identify and scale strategic supply sources, building relationships with brands, retailers, and large-scale sellers to ensure optimal supply, quality, and pricing for GMV growth.

You will own partner acquisition targets, negotiate terms, and lead cross-functional teams across Product, Merchandising, Trust & Safety and Operations to maximize partner success and marketplace liquidity.