Careers
Work worth signing, together.
Why us
A small team that stays with the work
We keep the people making product decisions close to design, engineering, and operation. AI agents support exploration and iteration. People set the direction, review one another's work, and remain accountable for quality.
We are looking for experienced people who want to cross disciplines, share their judgment openly, and make work they are proud to sign. In a small team, honest conversation, thoughtful review, and respect for one another's expertise matter every day.
Open roles
Positions we're hiring for
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Design Engineer
Shape how a product looks, works, and speaks, moving comfortably between design and implementation.
- Design and implement product interfaces and interactions
- Build and maintain design systems and their components
- Use orchestrated AI agents to prototype and test ideas
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Full-Stack Product Engineer
Take web, mobile, and cloud products from architecture through launch and operation.
- Design, build, and operate front-end, back-end, and infrastructure systems
- Launch products and improve them using evidence from real operation
- Integrate AI agents into the development workflow and evaluate their output
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AI Engineer
Build LLM and agent systems for product features and development workflows.
- Design and orchestrate AI agents for production workflows
- Build and evaluate LLM features and processing pipelines
- Run applied research in specialized domains such as IP technology
Note: Employment or contract terms are discussed individually based on your experience and preferences.
Work style
Working arrangements, agreed together
Who we're looking for
People we want to work with
- You decide what is worth building and carry it through to a finished standard
- You consider behavior and language as carefully as the visual surface
- You make sound decisions, ask for context, and take responsibility for the result
- You use AI thoughtfully in real work and keep improving the system
- You communicate clearly and generously in Japanese or English
Apply
Apply or start a conversation
To apply or start an informal conversation, email us with a link to selected work, GitHub, or a portfolio. Put the role title in the subject line.