[Hiring] Marketplaces Growth Marketing Manager @Careers with WM Partners' Portfolio Companies

Role Description

This role is responsible for leading media, analytics, and growth for Amazon and Marketplaces channels. You will operate at both strategic and executional levels – leading strategy, planning, and capability development whilst also executing media buying, testing, and optimization for these key sales channels.

In this role you will drive strong revenue and margin growth in the Amazon and Marketplaces P&L, deliver exceptional CAC / LTV economics, and collaborate effectively with the other digital sales and marketing channels to help achieve the company’s strategic and financial goals. This role includes management of marketplaces in the United States and Europe.

Key Responsibilities

• Marketplace Media Ownership (End-to-End)
  • Own media strategy, planning, execution, and optimization across Amazon and other marketplaces
  • Manage budgets, bidding, and campaign structure to maximize revenue and efficiency
  • Partner closely with an external media agency to execute marketplace campaigns
  • Lead execution across all Amazon ad products:
    • Sponsored Products
    • Sponsored Brands
    • Sponsored Display
    • Amazon DSP / Programmatic
    • STV and emerging formats
  • Scale media efforts across additional marketplaces (Walmart, Target, etc.)
• Performance Optimization & Growth
  • Identify and scale high-performing campaigns, products, and audiences
  • Drive continuous testing across:
    • Keyword strategy and targeting
    • Creative formats and messaging
    • Bidding strategies and placements
  • Optimize for both short-term efficiency (ROAS/CAC) and long-term growth (TACoS, LTV)
• Analytics, Reporting & Insights
  • Identify and unlock new growth opportunities across marketplaces
  • Continuously evolve media strategy based on performance data, market dynamics, and competitive landscape
  • Build and own reporting frameworks to track key performance metrics
  • Monitor and drive performance across key KPIs (CAC, LTV, ROAS, ACOS, TACoS, CVR, SOV / ranking)
  • Own competitive intelligence across marketplaces
• Testing & Incrementality
  • Design and execute incrementality and lift tests tied to promotions, campaigns, and product launches
  • Identify and validate new growth opportunities through structured experimentation
• Capability Building
  • Identify opportunities to improve efficiency, scalability, and performance
  • Stay ahead of marketplace media trends, tools, and platform innovations

Qualifications

• 3–5+ years of hands-on Amazon Advertising experience
• Proven track record scaling marketplace revenue and efficiency through direct campaign ownership
• Experience owning marketplace performance end-to-end (Amazon required; Walmart, Target, or other marketplaces a plus)
• Deep experience executing across:
  • Sponsored Products
  • Sponsored Brands
  • Sponsored Display
  • Amazon DSP / programmatic (required)
  • Video / Streaming TV (STV) (preferred)
• Demonstrated ability to build, test, and scale campaigns from scratch
• Strong ability to influence cross-functional stakeholders and drive impact
• Experience in CPG, supplements, or eCommerce preferred
• Experience managing or partnering with external media agencies
• Proven ability to translate campaign objectives into clear, measurable strategies
• Experience developing reporting frameworks that synthesize large data sets; familiarity with business intelligence tools is a plus