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Mercari

Peer-to-peer mobile marketplace for secondhand goods

Product Manager - Customer Support, Mercari Marketplace

Product ManagementConfirmed live in the last 24 hours
Full-timeMinato City, Tokyo, JapanNo salary listed

About the Job

Requirements

  • Resonate with the Mercari Group and its companies’ mission and values.
  • Demonstrate end-to-end ownership from product discovery through delivering value to users, using AI.
  • Have experience using AI tools for research, hypothesis validation, and prototyping; integrating data and user understanding; and improving the quality and speed of decision-making.
  • Have experience taking responsibility for business outcomes such as key performance indicators, rather than feature counts, and leading the full discover-build-learn cycle.
  • Have experience designing for reach, usage, and learning beyond release, including driving go-to-market activities, cross-divisional coordination, and post-launch learning.
  • Have at least 3 years of product management experience for internet services.
  • Have basic knowledge of software development, including agile methods, and experience collaborating with engineering teams.
  • Have experience extracting insights through data analysis using SQL or similar tools.

Responsibilities

  • Define the ideal state of the customer service domain and formulate a medium- to long-term vision and actionable roadmap.
  • Use quantitative and qualitative data and market and competitive trends to prioritize work tied to business growth, building alignment with leadership and related divisions.
  • Integrate quantitative, qualitative, market, and competitive inputs into a continuous, high-quality product backlog with testable hypotheses and success conditions.
  • Use generative AI to accelerate research and prototyping and run faster validation cycles.
  • Concentrate on hypothesis validation and key decisions within a development structure where engineers lead development end to end.
  • Lead go-to-market design, including push notifications, promotion, and public relations, and coordinate with related divisions such as Marketing, CRM, and Customer Service.
  • Monitor inquiry resolution rates and productivity improvement metrics, and design next actions.
  • Coordinate requirements and priorities with customer service operations and knowledge management teams, Sales, and new-business representatives.
  • Report to the management team and build consensus.

Desired Qualifications

  • Have practical experience in at least one of backend, frontend, design, or data that can be used to build prototypes and communicate with engineers.
  • Have experience both launching new products from 0 to 1 and improving existing products from 1 to N.
  • Have experience coordinating stakeholders and building alignment with Legal, Business Operations, leadership, or external partners.
  • Understand A/B testing and have experience making decisions based on test results.
  • Have experience planning, designing, or operating chatbot or conversational AI products, including dialogue-flow design, intent classification, or response-accuracy improvement.
  • Have experience designing and improving customer service automation key performance indicators, such as self-resolution rates and user satisfaction.
  • Have experience building knowledge bases and frequently asked questions and improving their operation.
  • Understand customer service operations and have experience collaborating with business process outsourcing providers.
  • Have work experience using English or experience developing products with multinational teams.
  • Have English proficiency at Independent level (CEFR B1) or above, or be able to attain it within six months of joining.

About the Company

Mercari

Peer-to-peer mobile marketplace for secondhand goods

Mercari operates a mobile peer-to-peer marketplace for buying and selling secondhand goods. Users list items by taking photos in the app, and buyers complete purchases there, with payments held in escrow until receipt is confirmed. Revenue comes from seller fees (10% in Japan; 10% plus 3.6% buyer protection in the US), plus Merpay payments and promoted listings, plus shipping partnerships for integrated delivery. The platform differentiates itself through a simple mobile experience, escrow and buyer protection, shipping integration, and a broader marketplace including Mercari Shops for sellers, with a goal of extending product life and supporting a circular economy.

Company size
1,001-5,000
Company stage
IPO
Headquarters
Tokyo, Japan
Founded
2013

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