React / TypeScript Frontend Developer – Existing Web App, Lovable Design Implementation

We are looking for an experienced React / TypeScript Frontend Developer to work on the user-facing side of an existing web application in the dating/social space. The application already exists and has an established codebase and backend. This is not a project from scratch. Another developer will continue working on the admin panel, while you will mainly focus on the user-facing application. How we work Most new UI/UX designs and flows are prepared by us in Lovable as working interactive prototypes for desktop and mobile. Your job will be to take these Lovable designs and implement them accurately into our existing production codebase while respecting the current architecture, components and functionality. You should be comfortable reviewing Lovable-generated React / TypeScript / Tailwind code when useful, but we do not want generated code copied blindly. The final implementation must fit properly into the existing application. Must-have skills * Strong React.js experience * Strong TypeScript experience * Functional components and React Hooks * Experience working with larger existing codebases * REST API integration * Vite * React Router * react-hook-form * Tailwind CSS * Sass / SCSS * Yarn * Git / GitHub * Strong responsive development skills for desktop and mobile * Ability to implement existing designs and interactive prototypes accurately * Good understanding of loading, error, empty, validation and asynchronous UI states You should ideally have experience with * SignalR, WebSockets or other real-time technologies * Playwright * Vitest * Image upload and image cropping * react-dropzone, react-easy-crop or similar libraries * Authentication and session handling * Cross-browser testing * Frontend performance optimisation Nice to have * .NET / ASP.NET backend experience * Microsoft SignalR * Monorepo / workspace architectures * Shared internal packages * Storybook * Biome / ESLint * Previous experience with dating, social, community or messaging applications What you will work on The application contains areas such as: * Registration and onboarding * User profiles and profile editing * Image upload and profile galleries * User discovery and interaction * Real-time messaging and chat * Notifications and online states * Forms and validation * Responsive desktop and mobile interfaces * Backend API integrations * Interactive engagement features * New functionality based on Lovable prototypes We are looking for someone who can understand an existing application quickly, work independently and implement new functionality without unnecessarily rebuilding existing parts. Visual accuracy is important, but we also expect you to understand how the UI should behave, including responsive behaviour, edge cases and different application states. Initial project duration: approximately 1–3 months, with the possibility of additional work if the cooperation goes well. When applying Please include: 1. Examples of React / TypeScript applications you have personally worked on 2. A short description of your experience working with existing codebases 3. Whether you have experience with SignalR, WebSockets or real-time chat applications 4. Your experience with responsive frontend implementation 5. Your availability per week Please start your proposal with the words “React Lovable” so we know you have read the complete job description.