tripla Co., Ltd. (TSE Growth: 5136.T) is the leading DX provider for hospitality, serving 10,000+ properties across APAC on a natively integrated platform where AI-learnable data flows from day one.
The era of selling “SaaS tools” is ending; the future is delivering outcomes autonomously — Outcome-as-a-Service. In that shift, design is not decoration. As AI collapses the cost of execution, the scarce skill becomes judgment: knowing what is worth building, and shaping how people learn to trust an AI that acts for them. That is the heart of this role.
As Director of Design, you own tripla’s design craft and design organization across the entire product suite. You are not here to manage a headcount — you are here to build a design function: raise the quality bar, make design a reliable and visible part of how we ship, and define the design language for our products. You report to the CPO and serve both product groups (Demand Generation, Revenue Engine) as a shared function.
Your remit covers three things:
● Craft — the quality of what we ship. Set and enforce the bar through critique, review, and standards, so design measurably improves outcomes rather than adding cycles.
● System & process — a right-sized design system and a predictable way design engages with PM and Engineering, so design is a source of throughput, not a bottleneck.
● Trust UX for AI — own tripla’s Trust UX framework (transparency, reversibility, the “Trust Ladder”) as a design language, translating it into the experiences that let customers hand control to autonomous AI.
● Set the design vision and quality bar as a player-coach — hands-on where it matters, while building the standards and rituals that make the whole team better.
● Own the design system, the hiring bar, and the growth of every designer, including a clear IC / Principal path.
● Champion Trust UX as the design language for tripla's AI products.
● Build an AI-native design practice — re-engineer the design process itself with AI: compress the research→prototype→spec cycle, automate repetitive craft and handoff, and set the team's standards for where AI accelerates and where human judgment must stay in the loop. The goal is throughput a lean team could not reach by headcount.
● Lead discovery from the front. Japanese-language execution (UI copy, domestic customer research) is owned by Japanese-speaking designers on the team; you partner with them so no signal is lost in translation.
