Full Stack Engineer (Java/Kotlin + React) | Up to 75k | Hybrid (Madrid)

We are looking for our client a leading international travel‑tech company scaling our engineering hub in Madrid. We’re transforming the travel experience by building innovative, reliable, and scalable software used by millions of travelers worldwide.

About the Role

We are looking for a Senior Fullstack Engineer (Java/Kotlin + React) who is highly motivated, collaborative, and passionate about building impactful projects. If you enjoy working across the stack—from frontend to backend and infrastructure—and want to influence architecture, mentor peers, and improve performance at scale, this role is for you.

As a Fullstack Engineer, you will:

• Write high-quality, maintainable, and testable code in Java, Kotlin, TypeScript, Python , or other modern stacks.
• Build frontend web applications, backend services, APIs, and data flows .
• Participate in cross‑functional Agile teams , from planning to production. <...