Frontend Developer to Build Complete Web and Mobile App UI

Sayzo is a small product team in India building a mobile-first application where a single codebase ships to the web, Android, and iOS. We are looking for an experienced frontend engineer to build out our complete end-to-end user interface, handle comprehensive testing, and ensure a polished, bug-free experience across all platforms. What You Will Be Building & Doing: 1. Complete End-to-End UI Development: Implement responsive product surfaces and views using modern frontend standards (SvelteKit 5 / TypeScript / Tailwind CSS). 2. Multi-Platform Consistency: Ensure smooth performance across the browser, Android, and iOS shells from a unified codebase. 3. Performance & Polish: Focus on budget-conscious rendering, fast load times, smooth touch/mouse interactions, and handling unglamorous edge cases (offline states, bad network sync, empty states). 4. Testing & Bug Fixing: Write reliable tests, track down UI bugs, and thoroughly squash layout or state issues before final delivery. 5. Accessibility & Craft: Ensure proper keyboard support, clean CSS architecture, and a production-ready finish.