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Mercari

Peer-to-peer mobile marketplace for secondhand goods

Product Manager - CRM / Customer Engagement Platform

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

About the Job

Requirements

  • Experience using AI tools for research, hypothesis validation, and prototyping, integrating data and customer understanding to improve the quality and speed of decision-making.
  • Experience owning business outcomes such as key performance indicators rather than feature counts, and leading discovery, development, and learning.
  • Experience designing delivery, usage, and learning beyond release, and driving go-to-market work, cross-functional coordination, and post-release learning.
  • At least 3 years of product management or project management experience in internet services.
  • Experience abstracting problems shared across multiple customers and teams into reusable product features or standard specifications.
  • Basic knowledge of software development, including agile methods, and experience collaborating with engineering teams.
  • Experience extracting insights through data analysis using SQL or similar tools.
  • Japanese proficiency at CEFR B2 or higher is required.

Responsibilities

  • Define the vision and strategic direction for the CRM platform across Mercari apps and websites, and create a medium- to long-term vision and actionable roadmap.
  • Use quantitative and qualitative data and market and competitor trends to set priorities connected to business growth, building alignment with executives and related departments.
  • Combine quantitative, qualitative, market, and competitor inputs into a continuous product backlog of testable hypotheses and defined success conditions.
  • Use generative AI to accelerate research and prototyping and run faster validation cycles.
  • Lead product development, focusing on hypothesis validation and key decisions while engineers lead end-to-end development.
  • Define API specifications in coordination with other departments so the platform can be used across Mercari apps and websites.
  • Lead go-to-market planning, including push notifications, promotions, and public relations, coordinating with related teams such as marketing and customer support.
  • Monitor post-release growth and long-term impact, and determine next actions.
  • Coordinate requirements and prioritization with the marketing team, and report to and build alignment with executives.

Desired Qualifications

  • Practical familiarity with at least one of backend engineering, frontend engineering, design, or data, and ability to use it for prototyping or discussions with engineers.
  • Experience with both 0-to-1 product launches and 1-to-N improvements.
  • Experience coordinating stakeholders and building alignment with legal, business operations, executives, or external partners.
  • Understanding of A/B testing and experience making decisions based on test results.
  • Product management experience with SaaS, platforms, API products, or integrations between multiple systems.
  • English proficiency at CEFR B2 or higher, experience working in English, or experience developing products with a multinational team.

About the Company

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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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