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Senior Manager / Director, Inventory Partnerships (Tokyo-Japan)

Lead inventory partnerships in Japan's digital ecosystem.
Appier
Hybrid
On-Site
Japan
Undisclosed salary
Job Description

Appier, an AI platform company, is seeking a Senior Manager/Director of Inventory Partnerships to spearhead supply-side efforts in Japan. This role involves establishing strategic relationships with SSPs, publishers, and data partners, working cross-functionally to deliver quality, scalable inventory and long-term value.

The Senior Manager/Director will represent Appier in the Japanese adtech ecosystem, building thought leadership and trusted relationships.

Responsibilities:

  • Drive strategic partnerships with SSPs, exchanges, direct publishers, and mobile/web inventory partners in Japan.
  • Collaborate closely with regional Sales, Product, and Engineering teams to align supply initiatives with business needs.
  • Analyze RTB data and monetization trends to identify growth opportunities and optimize inventory performance.
  • Oversee technical integrations (SDK, mediation, API) and manage the full partner lifecycle from onboarding to performance scaling.
  • Represent Appier in the Japanese adtech ecosystem—building thought leadership and trusted relationships.
  • Localize and execute global supply strategy for the Japan market.
  • Provide actionable market intelligence and partner feedback to influence product roadmap and operational planning.

Requirements:

  • Bachelor’s degree in a relevant field.
  • 5–8 years of experience in programmatic advertising, ad networks, or publisher-side partnerships.
  • Deep understanding of programmatic buying and monetization metrics: CPM, CPC, CPA, ROAS, etc.
  • Fluent in Japanese, with strong written and verbal English skills.
  • Strong commercial instincts with the ability to negotiate and build senior-level partnerships.
  • Solid data-driven mindset; comfort working with bid-level data and partner performance reports.
  • Familiarity with SSP integration models, SDK setups, and mobile/web monetization tools.

Appier offers:

  • Tokyo office in the city’s central business district
  • Competitive salary package
  • Comprehensive health insurance
  • Laptop of your choice (Mac/Windows)
  • Fully stocked pantry and regular team events
  • Hybrid flex work
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