Mercari
UI/UX Designer (Internship) - Mercari Group
Class of 2028, 28å察象 / UI/UX Designer(Internship)- Mercari Group
Tags: Internship, Business Japanese, Remote
Minato City, Tokyo, Japan / Remote (Remote)ã»Fetched Today
Job Description
Team: Design

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Class of 2028, 28å察象 / UI/UX Designer(Internship)- Mercari Group
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UI/UX Designer (Internship) - Mercari Group (Class of 2028)
Target Applicants
- Target Applicants: Those who can join as new graduates in October 2027 or April 2028.
- Employment Status: Intern - Please apply only if you are able to stay in Japan, as the internship must be from within Japan. For those who live overseas, we will provide Visa support and accommodation arrangements.
- Work Hours: Able to work more than 20 hours per week. A 2-3 months of Internship is encouraged. Please consult with the recruiter if you prefer shorter/longer period
- Airline ticket arrangements will be provided only to candidates who have not yet purchased their tickets at the time the internship offer is made.
- Office: in Japan (Remote or Roppongi)
- Application Deadline: June 30, 2026, 23:59 (JST)
Details: Please refer to the recruitment guidelines on the career site for further information.
About Mercari
Circulate all forms of value to unleash the potential in all people
"What can I do to help society thrive with the finite resources we have?" The Mercari marketplace app was born in 2013 out of this thought by our founder Shintaro Yamada as he traveled the world. We believe that by circulating all forms of value, not just physical things and money, we can create opportunities for anyone to realize their dreams and contribute to society and the people around them. Mercari aims to use technology to connect people all over the world and create a world where anyone can unleash their potential. For more information about Mercari Groupâs mission, see Mercariâs Culture Doc
Organization/Team Mission
Our mission is to deliver new, improved, and seamless experiences rooted in Mercari's Mission and Values to tens of millions of customers. We work across diverse services, including the Mercari marketplace app, Merpay, and Mercoin. This role goes beyond simple design tasks; you will be involved in experience design with a strong business perspective. We are looking for UI/UX Design Interns to join the design organization of the Mercari Group. For more details on our Mission and Values, please click here.
Work Responsibilities
- UX/UI design for apps and web services, centered on Mercari.
- Understanding the overall product structure and supporting design for new feature introductions.
- UX/UI improvement of existing products, growth hacking, and marketing promotion design.
- Problem discovery and improvement proposals based on user research.
- Development and verbalization of design concepts.
- Project promotion (progress management, resource management, scope adjustment, etc.).
- Prototyping and implementation support in collaboration with engineers and PMs.
- Participation in the utilization and improvement of our design system and guidelines.
Unique Challenges
- Experience working on a large-scale product used by tens of millions of users.
- The opportunity to grow within a professional design organization of dozens of experts.
- Involvement in holistic UX design across multiple business domains like C2C marketplace, Fintech, and Crypto assets.
- An environment where you can experiment with next-generation UI/UX using the latest AI and generative tools.
Qualifications
- Ideal Candidate
- Views design as a means to achieve business growth and solve social issues.
- Can drive future product creation, focusing on intuitive and clear interfaces based on human behavior and desires.
- Takes ownership of the product and can lead tasks proactively while involving those around them.
- Capable of expressing goals through output and co-creating with the team and organization.
- Highly interested in and has practical experience using the latest technologies, such as AI.
- Enjoys change and can take "Go Bold" challenges in unfamiliar or difficult situations.
- Required Experience/Skills
- Empathy for the Mission and Values of Mercari Group and its companies.
- Regular user of the Mercari app.
- Practical use of AI and generative tools in design and information architecture.
- Experience in UX/UI design for mobile applications.
- Fundamental knowledge of mobile UI design (OS-specific guidelines, Material Design, etc.).
- Ability to perform logical information architecture (experience in wireframing, user flows, etc.).
- Ability to utilize design systems and existing components.
- Strong conceptual skills (verbalizing your worldview and perspective on issues and translating them into design).
Note: Submission of a portfolio is mandatory at the time of entry. Please provide a format that best showcases your skills.
- Preferred Experience/Skills
- Interest in future leadership roles within the design organization or management.
- Interest in building design organizations and culture.
- Proven track record of improving experience value through UX research.
- Experience in product development co-creating with engineers, PMs, and other designers.
- Experience delivering output in a business setting (internships, startups, etc.).
- Skills in goal setting and systemization (setting KPIs for ideas and designing frameworks to track progress).
- Language
- Marketplace (Mercari, Cross Border):
- Japanese: Independent (CEFR-B1) or higher (Required)
- English: Independent (CEFR-B1) or higher (Required)
- Fintech (Merpay, Mercoin):
- Japanese: Proficient (CEFR-C1) or higher (Required)
- English: Basic (CEFR-A2) (Welcome)
*For details about CEFR, see here.
Learn More About Mercari Group
- Careers site: https://careers.mercari.com/en/
- Mercan: https://mercan.mercari.com/en/
- Social media: X / Linkedin
- Mercari Design Blog
*For more details, please read our I&D statement.
*Please read and acknowledge our Privacy Policy prior to submitting your application.