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Mercari

Product Manager (Customer Support) - Mercari Marketplace

プロダクトマネヌゞャヌ(Customer Support) - Mercari Marketplace

Tags: Full-time, 3 YOE, Business Japanese

Minato City, Tokyo, Japan・Fetched 30+ days ago

Job Description

Employment Type: Full-time
Team: Product Management

JD in Japanese follows. 英文の埌に和文JDをご芧いただけたす。

Product Manager ([Customer Support: Mercari Marketplace])

  • Employment type: Full-time employee
  • Work style: Flextime (no core hours)
  • Location: Roppongi

For details, please see the application guidelines on our careers site.



About the Mercari Group

Circulate all forms of value to unleash the potential in all people

"With the earth's resources limited, what can we do to build a more abundant society?" In 2013, the flea market app "Mercari" was born out of this sense of purpose that founder Shintaro Yamada developed during a trip around the world. We believe that by circulating all forms of value—not limited to physical goods and money—we can expand everyone's options to realize what they want to do and to contribute to people and society.

Through the power of technology we connect people around the world and work to realize a world in which the potential of all people can be unleashed. For the Mercari Group's direction, please see the Mercari Culture Doc.



Organization / Team Mission

In the Marketplace business, we aim to realize a global marketplace that creates new value—driving the growth of diverse businesses through the creation of user value. Starting with the operation of Mercari, Japan's largest flea-market service, we advance the Mercari Group's mission through our cross-border business and various new ventures.

CS Product's mission is to provide the best platforms and tools for the user service team to support valued users. While addressing diverse user inquiries and adding new services, it is essential to achieve efficient functionality expansion, swift problem resolution, and a seamless user experience at a high standard. Leveraging data and analytics to drive product decision-making and enhance customer support productivity is crucial.

Under a development structure that assumes AI, we pursue both speed and the maximization of user value at the same time. Product Managers concentrate on the most important problem discovery (Discovery) and business outcomes (Outcome), and move the product forward in small, autonomous teams.

  • For details on Mercari's mission and values, please see here.



Responsibilities

As a Product Manager, you will own everything from strategy to execution for Customer Service, leading a cross-functional team made up of engineers, designers, data analysts, and others. Under an AI-powered development structure, you will take end-to-end ownership and drive everything from problem discovery to business outcomes.



Key Responsibilities

  • 1. Define the vision, strategy, and roadmap
    • Define the ideal state of the CS domain and formulate a medium- to long-term vision and an actionable roadmap.
    • Based on quantitative/qualitative data and market/competitive trends, decide the priorities most directly tied to business growth while building alignment with the leadership team and related divisions
  • 2. Discovery and generating a high-quality backlog
    • Integrate diverse inputs—quantitative, qualitative, market, and competitive—to continuously supply a high-quality product backlog equipped with testable hypotheses and success conditions
    • Use generative AI to accelerate research and prototyping and to run validation cycles faster
  • 3. Leading product development
    • Under a structure in which engineers lead development end-to-end, the PdM concentrates on hypothesis validation and key decisions
  • 4. Launch & Learning (designing for reach, usage, and learning)
    • Don't treat the release as the finish line: lead GTM design including Push/promotion/PR and coordination with related divisions (Marketing/CRM/CS, etc.)
    • Monitor resolution rates of inquiries and productivity improvement metrics, and design the Next Action.
  • 5. Collaboration with stakeholders
    • Coordinate requirements and prioritize with various teams involved in CS, such as the CS Operations/Knowledge Management team, Sales, and New Business representatives
    • Reporting to and building consensus with the management team



Examples of tools used on the job

  • General chat / generative AI: Gemini, Claude
  • Knowledge QA / research support: Notion AI, NotebookLM (upload documents + Q&A)
  • Development support (code completion / coding agents / IDE): Cursor, GitHub Copilot, Claude Code, Devin, Codex, Gemini Code Assist
  • Workflow automation / AI app development (no-code / low-code): n8n, Dify



Unique Challenges

  • CS Product is a team that evolves Mercari's customer support experience through technology. It plans and develops systems to quickly resolve user issues through the most optimal channels.
  • In one of the largest marketplaces in Japan, with millions of inquiries occurring monthly, the team simultaneously drives multiple initiatives such as AI-powered automated responses, virtual agents, and back-office automation. Each initiative has the potential to improve the user experience for tens of thousands of users, providing an environment where one can be involved end-to-end, from product development to operational outcomes.
  • Actively adopting new technologies, including AI, and continuously transforming the very nature of customer support is a unique challenge for this team. Additionally, aiming to create "products that inherently reduce inquiries," the team collaborates daily with Mercari's development teams to drive continuous improvement.
  • Under a development structure that assumes AI, you can raise the resolution of the team's discussions and decisions starting from working prototypes, freeing the PdM to focus on the Discovery and Outcome they should truly concentrate on. Beyond the data platform and product development, you can move the product forward with broad discretion—including planning and driving new user experiences.



Requirements

  • Required experience / skills
    • You resonate with the mission and values of the Mercari Group and of each company
    • You can demonstrate consistent ownership from product discovery through delivering value to users, using AI
      • Experience using AI tools for research, hypothesis validation, and prototyping; integrating data/user understanding; and improving the quality and speed of decision-making
      • Experience taking responsibility for business outcomes such as KPIs (not the number of features) and leading the full cycle of discover → build → learn
      • Experience not stopping at release, but designing through "reach, usage, and learning"—driving GTM, cross-divisional coordination, and post-launch learning
    • Experience in product management for internet services (3+ years)
    • Basic knowledge of software development (agile, etc.) and experience collaborating with engineering teams
    • Experience extracting insights through data analysis using SQL, etc.
  • Preferred experience / skills
    • Cross-boundary skills: a practical feel for at least one of BE/Frontend/Design/Data, usable for building prototypes and for dialogue with engineers
    • Experience in both 0→1 (new launches) and 1→N (improving existing products)
    • Experience in stakeholder coordination and alignment with Legal/BizOps/leadership/external partners, etc.
    • Understanding of A/B testing and experience making decisions based on test results
    • Experience in planning, designing, or operating chatbot/conversational AI products (e.g., dialogue flow design, intent classification, response accuracy improvement)
    • Experience in designing and improving KPIs in the CS automation domain, such as self-resolution rates and user satisfaction
    • Experience in building and improving the operation of knowledge bases and FAQs
    • Understanding of CS Ops (Customer Service Operations) tasks and experience in collaborating with BPOs
    • Work experience using English, or experience in product development with multinational teams
  • Language
    • Japanese: Proficient (CEFR B2) or above required
    • English: Independent (CEFR B1) or above preferred (those able to acquire it within 6 months of joining)
  • ※ For details on CEFR, please see here.



Open positions in the Marketplace Product division

In the Product division of the Marketplace business, we are hiring across multiple positions to realize the Mercari Group mission—"Circulate all forms of value to unleash the potential in all people"—through the power of product.


Get to know the Mercari Group



About the selection process

At the Mercari Group, we value resonance with and embodiment of our mission and values. To build an organization that maximizes the total value our members create, we want to accurately understand each candidate's experience and skills.

Selection flow

  • Document screening
  • Interviews: multiple rounds depending on the position
  • Reference check: online response format (conducted around the final interview)
  • Offer: decided based on the results of the final interview and the reference check

※ For details, please see this page.



Equal opportunity in our selection process

At Mercari, we aim to realize a society in which an individual's potential is not predetermined by their background and everyone has the opportunity to freely create value. We believe that "Inclusion & Diversity" is indispensable to realizing our mission.

In our hiring activities as well, so that people of diverse backgrounds who resonate with Mercari's mission and values can join us, we promise to eliminate all discrimination based on age, gender, sexual orientation, race, religion, physical ability, or any other attribute.

For details, please see the I&D statement.

Please also review our Privacy Policy when you apply.






Product Manager / プロダクトマネヌゞャヌ(Customer Support) - Mercari Marketplace

  • 雇甚圢態正瀟員
  • 働き方フレックスタむム制コアタむムなし
  • 勀務地六本朚

詳现はキャリアサむトの募集芁項よりご確認ください。



メルカリグルヌプに぀いお

あらゆる䟡倀を埪環させ、あらゆる人の可胜性を広げる

「地球資源が限られおいるなか、より豊かな瀟䌚を぀くるために䜕ができるか」。2013幎、創業者の山田進倪郎が䞖界䞀呚の旅で抱いた課題意識から、フリマアプリ「メルカリ」は生たれたした。私たちは、物理的なモノやお金に限らずあらゆる䟡倀を埪環させるこずで、誰もがやりたいこずを実珟し、人や瀟䌚に貢献するための遞択肢を増やすこずができるず信じおいたす。

テクノロゞヌの力で䞖界䞭の人々を぀なぎ、あらゆる人の可胜性が発揮される䞖界を実珟しおいきたす。メルカリグルヌプの目指すべき方針に぀いおは Mercari Culture Doc をご芧ください。



組織・チヌムのミッション

マヌケットプレむス事業では、顧客䟡倀の創出を通じおさたざたな事業の成長を掚進し、新たな䟡倀を生み出す䞖界的なマヌケットプレむスの実珟を目指しおいたす。日本最倧のフリマサヌビスであるメルカリの運営をはじめ、越境事業や皮々の新芏事業を通しおメルカリグルヌプのミッション実珟を掚進しおいたす。

CS Productは、カスタマヌサヌビスチヌムが倧切なお客さたを支揎するための最高のプラットフォヌムずツヌルを提䟛するずいうミッションを掲げおいたす。お客さたからの倚様なお問い合わせや新サヌビスの远加に察応しながら、効率的な機胜拡匵ず迅速な問題解決、そしおシヌムレスなナヌザヌ䜓隓の質を高い氎準で䞡立させるこずが求められたす。デヌタずアナリティクスを掻甚しおプロダクトの意思決定を促進し、カスタマヌサポヌトの生産性を高めおいくこずが重芁です。

私たちは、AIを前提ずした開発䜓制のもずで、スピヌドず顧客䟡倀の最倧化を同時に远求したす。プロダクトマネヌゞャヌは、もっずも重芁な課題探玢Discoveryず事業成果Outcomeに集䞭し、少人数の自埋的なチヌムでプロダクトを前進させたす。

  • メルカリのミッション・バリュヌに぀いおの詳现はこちらをご芧ください。


 
業務内容

プロダクトマネヌゞャヌずしお、CS領域の戊略策定から実行たでを担い、゚ンゞニア・デザむナヌ・デヌタアナリスト等で構成されるクロスファンクショナルなチヌムをリヌドしおいただきたす。AIを掻甚した開発䜓制のもず、課題探玢から事業成果たでを䞀気通貫でオヌナヌシップを持っお掚進したす。


 
䞻な業務詳现

  • 1. ビゞョン・戊略・ロヌドマップの策定
    • CS領域のあるべき姿を定矩し、䞭長期のビゞョンず実行可胜なロヌドマップを策定
    • 定量/定性デヌタ・垂堎/競合動向にもずづき、経営陣や関連郚門ず合意圢成を行いながら、事業成長に盎結する優先順䜍を決定
  • 2. Discovery課題探玢ず高品質なバックログ生成
    • 定量・定性・垂堎・競合などの倚様なむンプットを統合し、怜蚌可胜な仮説ず成功条件を備えた高品質なプロダクトバックログを継続的に䟛絊
    • 生成AIを掻甚しお調査・プロトタむピングを高速化し、怜蚌サむクルを速く回す
  • 3. プロダクト開発のリヌド
    • ゚ンゞニアが開発をE2Eで䞻導する䜓制のもず、PdMは仮説怜蚌ず重芁な意思決定に集䞭
  • 4. Launch & Learning届く・䜿われる・孊べるの蚭蚈
    • リリヌスしお終わりにせず、Push/プロモヌション/PRを含むGTM蚭蚈、関連郚門マヌケティング/CRM/CS等ずの連携を䞻導
    • 問い合わせの解決率や生産性改善指暙をモニタリングし、Next Actionを蚭蚈
  • 5. ステヌクホルダヌずの連携
    • CSオペレヌション・ナレッゞ管理チヌム、セヌルス、新芏事業担圓者など、CSず関わる各皮チヌムずの芁件調敎・優先床刀断
    • 経営局ぞのレポヌティングず合意圢成


 
業務内での利甚ツヌル䟋

  • 汎甚チャット/生成AI: Gemini、Claude
  • ナレッゞQA/リサヌチ支揎: Notion AI、NotebookLM資料アップロヌドQ&A
  • 開発支揎コヌド補完・コヌディング゚ヌゞェント/IDE: Cursor、GitHub Copilot、Claude Code、Devin、Codex、Gemini Code Assist
  • ワヌクフロヌ自動化/AIアプリ開発ノヌコヌド/ロヌコヌド: n8n、Dify



ナニヌクなチャレンゞ

  • CS Product は、メルカリのカスタマヌサポヌト䜓隓を技術で進化させるチヌムです。お客さたのトラブルを最適なチャネルで迅速に解決するための仕組みを䌁画・開発しおいたす。
  • 月間数癟䞇件の問い合わせが発生する囜内最倧玚のマヌケットプレむスで、AIによる自動応答・バヌチャル゚ヌゞェント・バックオフィス自動化など耇数の斜策を同時に掚進しおいたす。斜策1぀で数䞇人芏暡の顧客䜓隓を改善できるむンパクトがあり、プロダクト開発からオペレヌション成果たで䞀気通貫で関䞎できる環境です。
  • AIをはじめずする新技術を積極的に取り入れ、カスタマヌサポヌトのあり方そのものを倉革し続けるこずが、このチヌムならではのチャレンゞです。たた「そもそも問い合わせが起きにくいプロダクト」を目指し、メルカリの開発チヌムず連携しながら日々改善に取り組んでいたす。
  • AIを前提ずした開発䜓制のもず、動くプロトタむプを起点にチヌムの議論ず意思決定の解像床を高めながら、PdMが本来集䞭すべきDiscoveryずOutcomeに泚力できる環境です。デヌタ基盀やプロダクト開発にずどたらず、新たな顧客䜓隓の䌁画・掚進たで、幅広い裁量を持っおプロダクトを前進させられたす。



応募芁件

  • 求める経隓・スキル
    • メルカリグルヌプおよび各カンパニヌのミッション・バリュヌに共感いただける方
      • AIを掻甚し、プロダクトディスカバリヌから䟡倀を顧客に届けるたで䞀貫したオヌナヌシップを発揮できる方
        • AIツヌルを調査・仮説怜蚌・プロトタむピングに䜿い、デヌタ/顧客理解を統合し、意思決定の質ずスピヌドを䞊げた経隓
        • 機胜数ではなくKPIなどの事業成果に責任を持ち、発芋→開発→孊習の䞀連をリヌドした経隓
        • リリヌスで終わりにせず、「届く・䜿われる・孊べる」たでを蚭蚈し、GTM・関係郚門連携・リリヌス埌の孊習を掚進した経隓
      • むンタヌネットサヌビスにおけるプロダクトマネゞメントの経隓3幎以䞊
      • ゜フトりェア開発アゞャむル等の基瀎知識ず、゚ンゞニアチヌムずの協働経隓
      • SQL等を甚いたデヌタ分析によるむンサむト抜出の経隓
  • 歓迎する経隓・スキル
    • 越境スキルBE/Frontend/Design/Dataのいずれか1぀以䞊に実務感芚があり、プロトタむプ䜜成や゚ンゞニアずの察話に掻かせる
    • 0→1新芏立ち䞊げず1→N既存改善の䞡方の経隓
    • Legal/BizOps/経営局/瀟倖パヌトナヌ等ずのステヌクホルダヌ調敎・合意圢成の経隓
    • A/Bテストの理解ず、テスト結果にもずづく意思決定の経隓
    • チャットボット・䌚話型AIプロダクトの䌁画・蚭蚈・運甚のいずれかの経隓察話フロヌ蚭蚈、意図分類、回答粟床改善など
    • 自己解決率・顧客満足床など、CS自動化領域におけるKPIの蚭蚈・改善経隓
    • ナレッゞベヌス・FAQの構築・運甚改善の経隓
    • CS Opsカスタマヌサヌビスオペレヌションの業務理解やBPO連携の経隓
    • 英語を甚いた業務経隓、たたは倚囜籍チヌムでのプロダクト開発経隓
  • 語孊力
    • 日本語ProficientCEFR B2以䞊必須
    • 英語IndependentCEFR B1以䞊歓迎入瀟埌6ヶ月以内に習埗可胜な方
  • ※CEFRの詳现に぀いおはこちらをご芧ください。


 
メルカリグルヌプに぀いお知る



遞考に぀いお

メルカリグルヌプでは、ミッションずバリュヌぞの共感・䜓珟を倧切にしおいたす。メンバヌが発揮する䟡倀の総量を最倧化する組織づくりを掚進するため、候補者のみなさたの経隓やスキルを正しく理解したいず考えおいたす。

遞考の流れ

  • 曞類遞考
  • 面接ポゞションにより耇数回実斜
  • リファレンスチェックオンラむン回答圢匏最終遞考の前埌に実斜
  • オファヌ最終遞考ずリファレンスチェックの結果をもずに決定

※詳しくはこちらのペヌゞをご芧ください。



遞考における機䌚の平等

メルカリでは、バックグラりンドによっお個人の可胜性が決め぀けられるこずなく、自由に䟡倀を生みだす機䌚を手にできる瀟䌚の実珟を目指しおいたす。ミッションの実珟に向けお「Inclusion & Diversity」の考え方は䞍可欠であるず考えおいたす。

採甚掻動においおも、メルカリのミッション・バリュヌに共感するさたざたなバックグラりンドの方にご参画いただけるよう、幎霢・性別・性的指向・人皮・宗教・身䜓胜力・その他の属性に基づくあらゆる差別をなくすこずを玄束したす。

詳しくはI&D statementをご芧ください。

なお、ご応募の際にはプラむバシヌポリシヌをご確認ください。