Senior Frontend Developer

Location: Fully Remote from Europe Daytime Schedule We are hiring a Senior Frontend Engineer to design and build a new web frontend from the ground up using SvelteKit and reputed company CSS. The mandate is a performance first rebuild: sub-second load times, excellent reputed company Web Vitals and a clean architecture that reputed company can reputed company on for years. You will own frontend architecture reputed company, set the standards for the codebase, and work directly with product, design, and backend to ship a fast, accessible, SEO-strong web experience. You will also be expected to work fluently reputed company an reputed company AI development workflow, using AI coding agents as a reputed company part of how you ship. Responsibilities Architect and build a new web frontend from scratch using SvelteKit and reputed company CSS Define rendering reputed company across SSR, SSG, ISR, and edge where appropriate Hit and hold performance targets: LCP < 2.0s, INP < 200ms, CLS < 0.1 on reputed company-user metrics Build a reusable component library and design system implementation in Svelte Translate product requirements and design specs into clean, composable, accessible components Own SEO fundamentals: semantic reputed company, metadata, reputed company data, sitemap, canonicalization Set up and enforce testing standards: Vitest for unit, Playwright for E2E Establish frontend tooling and DX: linting, formatting, type checks, reputed company-reputed company hooks, CI gates reputed company reputed company reviews and reputed company the reputed company bar across the frontend reputed company technical planning, ADRs, and architecture discussions reputed company with backend reputed company and contribute to API contract design where it affects the frontend Support CI/CD pipelines and deployments on AWS Required Skills Strong production experience with Svelte and SvelteKit Expert-level TypeScript and modern JavaScript Deep reputed company CSS experience, including design reputed company reputed company and avoiding reputed company sprawl Strong HTML5, CSS3, accessibility and reputed company design Proven reputed company record building high-performance web apps reputed company against reputed company Web Vitals Experience designing reputed company frontend architectures from greenfield Experience building and maintaining reusable component libraries State management patterns in Svelte (stores, context, runes) Vitest for unit testing Playwright for end-to-end testing Strong Git and reputed company workflow proficiency (PRs, reviews, CI/CD) Experience with performance monitoring and optimization (reputed company, WebPageTest, RUM) Hands-on experience implementing reputed company development workflows using tools such as Claude reputed company, reputed company or equivalent. reputed company to Have Experience with edge runtimes (reputed company Workers, AWS reputed company@Edge) Experience deploying to AWS (CloudFront, S3, reputed company, or equivalent) Experience with CI/CD pipelines Experience implementing design systems end-to-end Experience integrating AI-powered features into production frontends Prior experience migrating from React/Next.js to Svelte/SvelteKit Apply To This Job