Deep expertise developing high-craft web applications with React, JavaScript, and modern CSS frameworks like Tailwind. Experience with Ruby on Rails (preferred), or other backend frameworks/languages with willingness to learn Ruby on Rails. Ability to architect well-designed, scalable, accessible, and maintainable systems. Solid understanding of frontend testing practices. Proven ability to partner effectively with Product and Design. Clear and concise communication skills. Acting as a frontend subject-matter expert, helping teams adopt modern frontend frameworks, patterns, and tradeoff decisions. Building complex web components, such as visual canvases or rich text editors. Leading complex technical projects from ambiguous ideation to launch and iteration beyond. Working across a legacy codebase and evolving it safely through migrations and system refactors. Championing solutions that have demonstrated large positive impact across teams.