About This Role
We are looking for a

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 tool

Own complex UI flows end-to-end, from technical design to production rollout

Define and evolve component architecture, state management and data-fetching strategies

Build and deploy frontend applications using AWS Amplify

Integrate frontend applications with APIs and authentication systems (e.g. Cognito)

Ensure high standards for performance, accessibility and UX quality

Add robust error handling,



logging and frontend observability

Collaborate closely with backend engineers to define API contracts and improve system boundaries

Review code and contribute to frontend technical decisions and best practices

Help shape frontend conventions and contribute to a shared engineering culture

What You Will Bring

Strong professional experience building production applications with React

Hands-on experience with Vite and modern frontend build workflows

Experience deploying and operating frontend apps with AWS Amplify

Deep understanding of JavaScript / TypeScript, HTML and CSS

Proven ability to work without UI frameworks, building custom components and layouts from scratch

Solid knowledge of CSS preprocessors such as LESS and/or SASS

Experience designing reusable component systems and maintaining large frontend codebases

Experience consuming REST APIs and managing complex async data flows

Understanding of au

📌 Frontend React Developer (Madrid)
🏢 Ailin.health
📍 Madrid