Stax - Deeptech Talent

About the Role Stax - Deep Tech Headhunters are partnering with a high-growth international Series A company on a mission to transform the way organisations harness AI for customer support and product operations. They're looking for a Senior UI Architect who sits at the intersection of design excellence and engineering. This is a hands-on, systems-level leadership role for someone who doesn't just ship components-they craft cohesive, elegant, ultra-performant experiences. You'll play a defining role in setting the architectural direction for all user-facing surfaces-from fast, reactive dashboards to rich collaborative tools-ensuring interfaces are not only beautiful and intuitive, but also scalable and lightning-fast. What You'll Do Architect performant, low-latency UI systems that feel instantaneous and intuitive Elevate the design system with best-in-class standards for simplicity, extensibility, and polish Drive tight collaboration with product designers-translating vision into crisp, low-friction user flows Mentor and uplift engineers across teams on code quality, architecture, and UX craft Set and uphold benchmarks for UI performance (TTI, Lighthouse, bundle sizes, animation fluidity) Lead innovation across complex surfaces like search, timelines, real-time dashboards, and data-dense interfaces Define and enforce front-end best practices, including accessibility, interaction design, and motion principles Partner closely with backend and platform teams to influence API design for optimal UX You Might Be a Fit If You Have 10-15+ years of experience building production-grade UIs using TypeScript, React, GraphQL, and modern CSS frameworks A strong track record architecting scalable frontend systems and leading large UI projects end-to-end Mastery of UI performance concepts (hydration, layout thrashing, render timing, etc.) Experience evolving design systems at scale-with an eye for consistency, structure, and documentation A design-sensitive approach to development, treating UX as a shared responsibility Bonus: Experience with real-time data, stream-based UIs, or visualization libraries like D3/WebGL Bonus: Familiarity with PLG principles and the UX nuances of high-growth B2B SaaS platforms Why This Role? You'll be joining a deeply design-led culture, where architecture is about crafting user delight-not just technical scalability. This is an opportunity to shape the front-end foundation of a new category-defining platform at the ground level, in an environment that values velocity, quality, and cross-disciplinary collaboration. Architects here don't operate in silos. They lead from the front-building, mentoring, and pushing boundaries every day. Stax is proud to represent this opportunity. If you're a UI leader who's excited by scale, strategy, and AI-powered innovation, we'd love to hear from you. We welcome applicants from all backgrounds.