Mercari, Inc. logo

UX Researcher - Crossborder, Mercari

Mercari, Inc. 🇯🇵 Minato, Tokyo, Japan

Onsite Full-time Mid-level

Plan and execute usability tests, interviews, and design validations to improve the global marketplace experience. Support research operations and integrate AI tools to streamline the research workflow and insight communication.

Responsibilities

  • Plan and execute ongoing usability tests, user interviews, concept evaluations, and design validation studies
  • Leverage research tools/platforms to run un-moderated studies at scale
  • Design lightweight research frameworks for rapid testing cycles
  • Synthesize findings into clear, actionable insights
  • Support participant recruitment and logistics for qualitative and quantitative studies
  • Maintain and improve research repositories, user databases, feedback trackers, and documentation
  • Contribute to the Voice of the Customer (VoC) program
  • Partner with cross-functional teams to streamline and scale global research practices

Requirements

  • 2+ years of UX research experience
  • Experience planning and conducting usability tests, user interviews, and concept evaluations
  • Familiarity with remote testing tools such as UserTesting, Maze, UserZoom, or similar
  • Experience with participant recruitment and coordination
  • Strong communication skills in English (verbal and written)
  • Experience with AI tools and applying them in a research workstream
  • Comfortable with basic survey tools (e.g., Google Forms, Qualtrics, Typeform)

Benefits

  • Opportunities for growth and development
  • Competitive salary and benefits package
  • Professional training and development programs
  • Recognition and rewards for outstanding performance

Key Skills

UX research Usability testing User interviews Concept evaluations Design validation studies Remote testing tools (e.g., UserTesting, Maze, UserZoom) Participant recruitment and coordination Strong communication skills in English AI tools and applications Basic survey tools (e.g., Google Forms, Qualtrics, Typeform) Cross-functional collaboration Research operations Voice of the Customer (VoC) program Data analysis and synthesis Design thinking User-centered design Agile methodologies Scrum frameworks Lean principles Customer feedback analysis Design systems User experience design Human-computer interaction (HCI) Information architecture Interaction design Visual design Prototyping Wireframing

About Mercari, Inc.

Mercari is a C2C marketplace app allowing anyone with a smartphone to easily sell items they no longer need, providing a new and unique user experience. In the past, buying and selling secondhand items has commonly been done at physical shops. However, this came with issues: the travel time required to go to these shops, the limited selection of items these shops carry, the unclear prices for both the buyer and seller alike due to the involvement of dealers, and more. Online auction websites for buying and selling secondhand items came with their own problems, including difficult listing procedures and long bidding times. On Mercari, anyone can use their smartphone to easily buy and sell items. We also provide easy and inexpensive shipping options thanks to our partnerships with delivery companies and convenience stores. As our service is catered to individuals on both the buying and selling sides, anyone can experience the fun of easily selling unneeded items for money and the excit

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