Principal Product Designer (London / Dublin / Prague)

Locations: London / Dublin / Prague

At [REDACTED], we're building the first agentic product management system. We're rethinking how product management is done in a world full of AI agents, and how we help our customers build what matters for their audience. AI is changing what an interface even is: static screens are giving way to conversations, generated artifacts, rich interactive UI, and open-ended workflows, often on the same screen. We're looking for a Principal Product Designer to be the UX architect of the product: a hands-on senior IC from an AI-first product company who defines the architecture and patterns that make [REDACTED] one coherent, AI-first product rather than a collection of independently designed experiences, sets its design direction, raises the bar for design, usability, and UX architecture across every product team, and personally carries the hardest design work. This is a role with organization-wide scope and real decision rights, and partnering closely with Product, Engineering, and the Product Executive team. You'll decide how agentic workflows meet a structured product: how Spark's work lands in a purpose-built data model, visualizations, and documents, when a task should be a conversation, a generated artifact, or a conventional interface, and which of those patterns become product-wide standards. You'll make sure agents, artifacts, and structured UI hold together as one experience, and set a higher bar for everything that ships: coherent, usable end to end, and built on one architecture. Our users are product makers themselves. They can tell in the first minute whether a product was made with care, and design is how we win that minute.

Your responsibilities

Own [REDACTED]'s UX and interaction architecture. The information architecture, navigation model, and object model that make [REDACTED] feel like one product. As Spark, our AI agent…