Design Manager - Mercari Marketplace

Salary not provided

Japanese only
English: FluentJapanese: Fluent

Minimum year of experience: 2

Mercari

Design Manager - Mercari Marketplace

Work Responsibilities

  • Lead end-to-end design hands-on in key areas, while holding overall accountability for experience quality across your scope
  • Define the experience direction and design quality bar across the Marketplace, and continuously improve them by building out patterns and critique processes with the design system team
  • Decide what to prioritize among ambiguous business and user problems, and steer the team toward a clear experience strategy
  • Shape team composition and designer assignments, and take responsibility for overall team performance and health
  • Lead designer hiring and design the onboarding experience, and support each member's growth and career development through feedback and performance reviews
  • Partner closely with Product Managers, Engineering Managers, and UX Researchers to shape product direction and influence the roadmap
  • Identify problems and opportunities beyond your immediate scope, and proactively propose new ideas, concepts, and improvements

Unique Challenges

  • Owning experience quality across buyer and seller journeys in a marketplace used by tens of millions and expanding globally.
  • Deciding who takes on which unexplored product areas, and leading the team into high ambiguity with few precedents.
  • Building the systems that let the team balance speed, experimentation, and innovation with a high bar for craft, trust, and usability.
  • Shaping how a growing design organization works, from team composition and hiring to growth and process, while continuing to lead design yourself.
  • Building a team that designs for the Japanese market with strong attention to cultural nuance, trust, and clarity.
  • Raising the team's AI fluency from very different starting points, without lowering the bar for craft.

Qualifications

Required Experience/Skills

  • 2+ years of design management experience.
  • Strong design skills across UX, interaction, and visual design, with a sharp eye for detail and craft.
  • Experience leading design in complex or ambiguous problem spaces, and shaping product direction through concept development and storytelling.
  • Deep understanding of design systems, scalable patterns, and maintaining consistency across large-scale products.
  • Experience raising the quality of a team's output through feedback and mentorship.

Preferred Experience/Skills

  • 6+ years of professional experience in product design or UX design, owning end-to-end experiences.
  • Design experience with marketplaces, e-commerce, or transactional products.
  • Experience growing designers into high-impact roles aligned with their strengths and aspirations.
  • Experience managing a design organization across multiple teams or product areas.
  • A portfolio or website showing your past design work.
  • Familiarity with user research methods and experience applying insights to design decisions.
  • Professional experience in the Japanese market, or experience designing products for it.
  • Comfort with experimentation, prototyping, and rapid iteration in high-uncertainty environments.
  • Experience contributing to designer hiring, such as defining role requirements, designing interview processes, or employer branding.
  • Uses AI tools in daily design work and has reshaped your own workflow around them, from exploration to prototyping.
  • Experience using AI tools in daily design work and reshaping your own workflow around them, from exploration to prototyping.

Language

  • Japanese: Proficient (CEFR B2) or above required
  • English: Proficient (CEFR – C1)

応募要件

求める経験・スキル

  • デザインマネジメント経験(2年以上)
  • UXデザイン、インタラクションデザイン、ビジュアルデザインにまたがる高いデザインスキルと、細部や品質への鋭い感度
  • 複雑または曖昧な課題領域においてデザインをリードし、コンセプト設計やストーリーテリングを通じてプロダクトの方向性に影響を与えた経験
  • デザインシステムやスケーラブルなパターン設計、および大規模なプロダクトにおける一貫性の維持に関する深い理解
  • デザイナーへのフィードバックやメンタリングを通じて、チーム全体のアウトプット品質を高めた経験

歓迎する経験・スキル

  • プロダクトデザインまたはUXデザインの領域において、エンドツーエンドの体験に責任を持って取り組んだ実務経験(6年以上)
  • マーケットプレイス、Eコマース、またはトランザクション型プロダクトにおけるデザイン経験
  • メンバーの強みと志向に沿って、高いインパクトを出せる場所まで成長させてきた経験
  • 複数のチームやプロダクト領域を横断したデザイン組織のマネジメント経験
  • これまでのデザイン実績が確認できるポートフォリオまたはWebサイト
  • ユーザーリサーチ手法への理解と、インサイトをデザイン意思決定に活用した経験
  • 日本市場での実務経験、または日本市場向けプロダクトのデザイン経験
  • 不確実性の高い環境における実験・プロトタイピング・迅速なイテレーションへの適応力
  • デザイナー採用に関わった経験(要件定義、選考設計、採用ブランディングなど)
  • 日常のデザイン業務でAIツールを活用し、探索からプロトタイピングまでのワークフローを組み替えてきた経験

語学力

  • 日本語: Proficient (CEFR B2) 以上必須
  • 英語: Independent (CEFR B1) 以上歓迎(入社後6ヶ月以内に習得可能な方)