Mid-Senior Frontend React Developer

About This Role We are looking for a Mid–Senior Front-End Developer to join our engineering team and help build a new platform that will serve as the next generation of our product ecosystem. You will play a key role in designing and implementing the frontend architecture of the platform, building scalable UI foundations and setting quality standards as the product grows. Your work will directly influence frontend structure, development patterns and user experience, becoming the baseline for future development at Ailin. YOUR MISSION Design and implement frontend features using React, with Vite as the build toolOwn complex UI flows end-to-end, from technical design to production rolloutDefine and evolve component architecture, state management and data-fetching strategiesBuild and deploy frontend applications using AWS AmplifyIntegrate frontend applications with APIs and authentication systems (e.g. Cognito)Ensure high standards for performance, accessibility and UX qualityAdd robust error handling, logging and frontend observabilityCollaborate closely with backend engineers to define API contracts and improve system boundariesReview code and contribute to frontend technical decisions and best practicesHelp shape frontend conventions and contribute to a shared engineering culture What You Will Bring Strong professional experience building production applications with ReactHands-on experience with Vite and modern frontend build workflowsExperience deploying and operating frontend apps with AWS AmplifyDeep understanding of JavaScript / TypeScript, HTML and CSSProven ability to work without UI frameworks, building custom components and layouts from scratchSolid knowledge of CSS preprocessors such as LESS and/or SASSExperience designing reusable component systems and maintaining large frontend codebasesExperience consuming REST APIs and managing complex async data flowsUnderstanding of authentication flows and secure frontend development patternsHigh standards for code quality, performance and user experienceAn ownership mindset: you care about the product, not just the tickets