Senior/Principal Frontend (Fullstack) Engineer

We’re looking for an experienced engineer (8+ years) with strong ownership, communication skills, and the ability to independently design and build frontend architecture. The role focuses on creating a reusable frontend platform and developing business applications in a microfrontends setup.Project details:6-month contract (possible extension)Remote + occasional onsite in Berlin (max once/month, usually less)Full-time (100% FTE)Key requirements:Expert-level React and TypeScript (including advanced TS concepts like generics, conditional and mapped types)Strong frontend and web architecture knowledge (REST APIs, WebSockets)Experience with styled-components v6 and theming (incl. Ant Design)Ability to mentor, lead, and communicate clearly in EnglishNice to have:Microfrontends and server-driven UI experienceNext.js knowledgeFamiliarity with Atomic DesignResponsibilities:Redesign a frontend monolith into a microfrontends architectureBuild and roll out a new design systemBonus:Experience with UI libraries/design systemsMonorepo tools (Nx, Turborepo, pnpm/yarn workspaces)**