Build smooth holiday journeys with Kotlin, Compose and serious ownership

At Sunweb Group, our Android app supports customers from holiday inspiration through booking and travel.

As our Senior Android Engineer, you will own features from the initial Figma design through development, testing, release and monitoring. You will work in Kotlin and Jetpack Compose on a long-lived codebase that is actively modernised—with quality, stability and customer experience at the centre of every decision.

Location: Girona preferred / Rotterdam possible

Way of working: Versátil hybrid

Contract: Full-time

Team: Team Cuba – Mobile

Your impact

• Build and evolve customer-facing Android experiences using Kotlin and Jetpack Compose.
• Own features from refinement and technical design through testing, Play Store release and production monitoring.
• Act as a technical reference for Android through code reviews, architectural decisions and mentoring.
• Align closely with iOS and backend engineers to deliver platform parity without sacrificing native quality.




• Evolve a modular Gradle codebase using pragmatic clean-architecture principles.
• Apply dependency injection, Coroutines and Flow effectively.
• Integrate and protect revenue-critical customer journeys involving payments, excursions, transfers etc.
• Use Firebase, Analytics and New Relic to understand user behaviour and improve app health.
• Use modern and agentic coding tools pragmatically to improve productivity and code quality.

What about the team?

You will join Team Cuba, our mobile team. The team is growing to two Android engineers, two iOS engineers, one backend engineer, a Product Owner and an Engineering Lead.

Most engineers are based in Girona, while the Product Owner works from Rotterdam. We work flexibly and communicate deliberately across locations.

As our second Android engineer, you will bring independent ownership from day one and help make the platform and team more resilient.

Our tech stack

Kotlin

• Jet

📌 Senior Android Engineer (España)
🏢 Sunweb Group
📍 España