Senior Director of Paid Media (Growth)

About the role

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.

Responsibilities

• Translate company-wide business objectives into actionable, holistic, and channel-integrated paid media strategies that span both performance and brand activity.
• Serve as a key stakeholder and strategic voice in executive-level discussions around growth, revenue, and marketing investment.
• Align paid media strategy with broader marketing, product, and commercial goals to ensure cohesive brand and performance outcomes.
• Lead, mentor, and scale paid media teams responsible for both performance marketing and brand-building campaigns across global markets.
• Establish and continuously optimize a rigorous test-and-learn framework to drive innovation, efficiency, and measurable business impact.
• Define and own the measurement philosophy and attribution approach across all paid channels, including advanced methodologies such as Media Mix Modeling (MMM) and incrementality testing.
• Build and maintain robust reporting frameworks that clearly connect paid media investment to revenue, growth, and business KPIs.
• Deliver regular performance reviews, forecasting, and strategic recommendations to senior leadership and cross-functional partners.
• Partner closely with creative, data/analytics, product, and finance teams to ensure paid media programs are fully integrated and operationally sound.
• Manage agency and vendor relationships, including direct publisher partnerships, RFP processes, and media planning workflows.
• Identify and champion opportunities for incremental investment and expanded media mix to capture new growth levers.

Qualifications

• 10+ years of paid media experience, with significant time spent in senior or director-level roles with full channel ownership.
• Demonstrated experience working with apps and/or marketplace businesses, with a strong understanding of the unique performance dynamics of these environments.
• Must be based in or willing to relocate to San Francisco, CA, with the ability to meet the role's in-office requirements.
• Hands-on expertise across paid social, paid search/SEM, programmatic, and video/linear channels with the ability to go deep when required.
• Strong command of advanced measurement approaches, including MMM, incrementality, and attribution modeling.
• Experience building and managing multi-channel media plans inclusive of both digital and traditional media, as well as direct publisher partnerships.
• Proven track record of building, developing, and retaining high-performing teams across ad operations, account management, and channel specialists.
• Exceptional communication skills with the ability to translate complex data and media strategy into clear, executive-level narratives.
• Proficiency with leading analytics platforms (Google Analytics, Adobe Analytics, or equivalent) and a strong analytical mindset.
• Experience working in or closely alongside a two-sided marketplace or e-commerce platform is strongly preferred.