Job Description
Career Opportunity for a UI/UX Designer in Japan!
■ Job Title
UI/UX Designer
■ Company Overview
A leading Japanese e-commerce and internet services company, founded in 1997, operates one of the country’s largest online marketplaces, connecting millions of merchants and consumers. Beyond online retail, it has expanded into diverse sectors including fintech, digital content, telecommunications, and professional sports. Its ecosystem integrates shopping, payments, banking, credit cards, mobile services, and loyalty programs through a shared rewards system, creating a seamless experience across its platforms. Headquartered in Tokyo, the company has also grown globally, offering services in multiple regions and investing in innovation, AI, and cloud technologies to strengthen its digital infrastructure.
■ Department Overview
● At AI for Business (AI4B), we are dedicated to helping people get things done seamlessly through our cutting-edge AI-driven solutions.
● Our team focuses on integrating Artificial Intelligence to eliminate friction and streamline workflows across industries.
● We operate within a diverse and dynamic environment, collaborating across various disciplines to create impactful technologies that empower effortless productivity worldwide.
● We're looking for a Generative AI UI/UX Designer to define the future of human-AI interaction.
● You'll turn ambiguity into clarity, experimenting with completely new UI/UX paradigms and creating effective interfaces for generative AI experiences across our AI for Business product portfolio.
■ Your Role and Responsibilities
As a UI/UX Designer, your key responsibilities are: -
● Create and iterate on user flows, wireframes, prototypes, and high-fidelity designs for generative AI features
● Own end-to-end design workflows from concept to implementation, weighing user experience against technical feasibility and business objectives
● Identify new AI opportunities, design concepts, and build prototypes to execute on strategic goals
● Shape product direction through breakthrough generative AI interface innovations
● Facilitate alignment and build unified product design vision across teams
■ Experience and Qualifications
● Portfolio website required, showcasing your design process and solutions
● High standards for UI/UX design execution. Advanced Figma skills.
● Strong product design sense and problem-solving abilities to tackle new design challenges
● Extensive agentic coding experience (e.g., Claude Code, Cursor). Strong preference for candidates who have shipped products using agentic coding
● Strong storytelling and communication skills using mental models, mockups and other tools-for-thought to effectively communicate ideas to teams and senior stakeholders
● Bias towards shipping fast and iterating based on real user feedback
● Comfortable navigating abstract and unknown territories when exploring new AI ideas
■ Additional Preferred Qualifications
● 4+ years of experience designing UX and UI for software, with experience working with generative AI, LLMs, or conversational interfaces
● Natural curiosity for discovering simpler ways to tackle hard problems
● Experience with design research and user testing
● Knowledge of accessibility and inclusive design
● Japanese skills
■ Work Location
Tokyo (Hybrid)
■ Salary
● To be decided based on your experience, skill set, and company policies.
● Details will be shared during the interview process.
■ Language
● Fluent English communication skills (both written and spoken) are required as the team operates in English.
● Japanese language skills are not required but are considered a great plus.
Details will be provided during the meeting.