Senior Android Engineer

Sunweb Group; Rotterdam; Híbrido; EUR 65.000 - 78.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Hybrid work model

Travel/relocation support

Career development plan

Well-being coaching

Work-from-home allowance

Descripción de la vacante

Sunweb Group is hiring a Senior Android Engineer to own features from design to release. You will work with Kotlin and Jetpack Compose on a long-lived codebase, focusing on quality and customer experience.

This role offers a flexible hybrid model with options in Rotterdam or Girona, and close collaboration with iOS and backend engineers. You will evolve a modular Gradle codebase, apply modern architecture principles, and drive ownership from day one, contributing to platform parity and resilient

Formación

• 5+ years of production Android development with Kotlin
• Solid experience with Jetpack Compose
• Strong knowledge of Coroutines, Flow and Android lifecycle
• Experience with clean or layered architecture and DI
• Multi-module Gradle projects and build types/flavors
• CI/CD practices and Git workflows
• Play Console release-management and versioning
• Experience consuming REST APIs and caching behaviour
• Experience integrating third-party SDKs (payments)
• Professional English proficiency

Responsabilidades

• Build and evolve customer-facing Android experiences using Kotlin and Jetpack Compose.
• Own features from refinement and technical design through testing, release and production monitoring.
• Mentor teammates and provide Android architectural direction.
• Collaborate with iOS and backend engineers for platform parity.
• Develop modular Gradle codebase with clean-architecture principles.
• Apply DI, Coroutines and Flow effectively across the app.
• Ensure revenue-critical journeys (payments, transfers) are robust.
• Leverage Firebase, Analytics and New Relic to improve app health.
• Maintain high standards for productivity and code quality.

Conocimientos

Kotlin

Jetpack Compose

Coroutines/Flow

Clean architecture

DI (Dependency Injection)

Gradle multi-mod

Testing/CI workflows

Play Console release management

REST APIs & caching

Payment integrations

English proficiency

Ownership mindset

Herramientas

Kotlin

Jetpack Compose

Gradle

GitHub Actions

Firebase

New Relic

Descripción del empleo

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: Flexible 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 · Jetpack Compose · Gradle · Coroutines · Flow · Kodein · Ktor · DataStore · Compose Navigation · GitHub Actions · Fastlane · Firebase · New Relic · Azure · Figma · Google Play Console · Copilot

What you bring

• Several years (5+) of strong Kotlin experience in production Android applications at meaningful scale.


• Production experience with Jetpack Compose.


• Solid knowledge of Coroutines, Flow, state management and the Android lifecycle.


• Practical experience with clean or layered architecture and dependency injection.


• Experience with Gradle in a multi-module project, including build types or flavours.


• Automated testing, Git workflows, code reviews and CI as standard engineering habits.


• Play Console release-management experience, including signing, versioning and staged rollouts.


• Experience consuming REST APIs and designing reliable caching behaviour.


• Experience integrating third-party SDKs or APIs, ideally including payment services.


• Professional working proficiency in English.


• A proactive, pragmatic and low-ego ownership mindset.

Nice to have

• Experience with high-traffic consumer, e-commerce or travel applications.


• Accessibility, localisation and performance-optimisation experience.


• Has design skills and mobile UI/UX experience.


• Spanish, Catalan or Dutch language skills.

Why join our journey?

• Play a central role in Android architecture and technical direction.


• Work on a modernising and well-maintained application where engineering judgement matters.


• Make a direct impact on customer journeys where reliability genuinely matters.


• Collaborate closely with iOS and backend engineers while retaining the strengths of native Android.


• Help shape digital holiday experiences used by customers across Europe.

What we offer

For a Dutch contract (based in our Rotterdam office):

• Monthly gross salary between €5400 and €6500 plus 6 ATV days (based on full-time employment, excluding 8% holiday allowance). Please note: ATV days do not apply to part-time contracts.


• We enjoy the journey so enjoy 25 holidays based on fulltime employment.

For a Spanish contract (based in our Girona office):

• Yearly gross salary between €56.000,- and €71.000- (based on full-time employment)


• We enjoy the journey so enjoy 23 holidays based on fulltime employment.

The final offer depends on your experience and local employment contract.

Additionally, we offer:

• Enjoy up to 20% off when booking with our brands for you, your family, and your friends.


• As an international company we support a hybrid way of working. We provide you with office furniture and IT equipment.


• A personalized Reflect & Develop Plan to support your career growth.


• Benefit from coaching sessions designed to support your well-being.


• Receive work-from-home and travel allowances to ease your daily routine.

Application deadline: 31 October

Sunweb Group is an equal opportunity employer, which means we do not discriminate in any way. We celebrate diversity and are committed to creating an inclusive and safe environment for all employees.