Senior Product Design Engineer

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Product Design Engineer based in United States. Own core product experiences end to end, combining exceptional product design judgment with strong design engineering skills. You’ll turn ideas and prototypes into production-ready components that are accessible, robust, and ready for engineers to use directly. The role sits at the intersection of product design, frontend engineering, design systems, and interaction design. You’ll build and evolve reusable primitives while continuously improving a shared open-source component library. You’ll work with modern AI development tools to prototype quickly, explore ideas, and accelerate the path from concept to production. The environment is remote-first and async, with a high degree of autonomy, direct feedback, and a strong emphasis on craft and thoughtful collaboration. This is an opportunity to shape both the product experience and the design system behind a globally used scheduling platform. Accountabilities - Own core product surfaces from concept through production , including booking flows, scheduling primitives, and team and enterprise experiences. - Translate product problems and hypotheses into high-quality designs, prototypes, and production-ready frontend components. - Build and test working prototypes using modern AI-assisted development tools such as Claude Code, Cursor, and v0 , selecting the fastest approach for answering product and design questions. - Deliver components that product engineers can use directly, ensuring correct semantics, complete interaction states, accessibility, and production-quality implementation.

- Design, engineer, and maintain custom components and primitives rather than relying on generic third-party UI libraries. - Continuously improve the shared component library by auditing existing primitives, identifying gaps, refining patterns, and contributing reusable components rather than creating one-off solutions. - Maintain consistency across tokens, spacing, states, dark mode, motion, and interaction patterns , ensuring every new product surface strengthens the overall design system. - Apply motion and animation thoughtfully, using it to clarify interactions and improve the experience without adding unnecessary complexity. - Own outcomes rather than simply delivering design artifacts by framing hypotheses, defining success criteria, supporting implementation, and evaluating results. - Maintain a high accessibility standard across all work, including keyboard navigation, focus management, semantics, contrast, and motion preferences . - Refine the details that elevate product quality, including empty states, error messaging, loading behavior, transitions, and other interaction nuances. - Collaborate openly with product and design leadership, sharing work early, incorporating feedback, and allowing technical and product constraints to inform design decisions. - Document design thinking and decisions through written documentation, prototypes, and recorded walkthroughs to support effective asynchronous collaboration. Requirements: - Proven experience as a product designer who has evolved substantially into design engineering , with ownership of complex and ambiguous product areas from problem definition through launch and iteration. - Exceptional product design craft combined with strong frontend engineering skills in HTML, CSS, TypeScript, and React . - Demonstrated ability to independently turn product and design concepts into polished, working implementations without relying on another engineer to make ideas production-ready. - Strong experience designing and engineering custom UI components and primitives , rather than primarily consuming third-party component libraries.