Product Designer (UX), HCI
Bjak · Remote · Tokyo, Japan ·
COMPENSATION
€•• – ••k
Listed on the employer's job board (Ashby)
- Fully remote
- Product Design (UX/HCI)
- AI workflow design
- Figma proficiency
- Small high-density team
Actai builds AI-native applications for email, notes, tasks, and calendars, aiming to reduce the need for complex prompting. The team focuses on high reliability, persistent context, and real-world task completion to organize users' lives.
As a Product Designer, you will define new interaction patterns for human-AI collaboration. You will create interfaces that allow users to guide, correct, and monitor AI actions across multi-step workflows, ensuring clarity and trust in automated processes.
What you'll do
- Design end-to-end user experiences for AI product surfaces from concept to launch
- Create interaction patterns for prompting, review, confirmation, and error recovery
- Build interfaces that clarify AI reasoning, uncertainty, and next steps
- Translate complex multi-step AI capabilities into clear, usable everyday flows
- Collaborate with product, engineering, and ML teams to define problems and ship fast
- Produce wireframes, prototypes, and high-fidelity designs for web and mobile
- Conduct lightweight user research to identify friction and trust issues
- Define reusable HCI design patterns as the design system matures
What you'll need
- Experience as a product or UX designer with a web or mobile portfolio
- Strong skills in interaction design, information hierarchy, and prototyping
- Proficiency in Figma and fast iteration workflows
- Ability to simplify complex systems and clarify unclear product behavior
- Experience working with product managers and engineers in fast-moving teams
- Comfort with ambiguity and shaping solutions before requirements are fixed
- Good judgment on usability, edge cases, and failure handling
- Clear understanding of trust, control, and transparency in AI experiences
Stack
- Figma
How you'll work
- Fully remote work environment
- Small, hands-on team with high talent density
- Collective decision making with rapid execution speed
- Interviews conducted via virtual meetings or onsite
Hiring process
- Submit a portfolio as part of the application
- Team evaluates applications for initial fit
- Two rounds of interviews and a design assessment
- Prompt decision following the final assessment