Senior Android Engineer

Senior Android Developer
We’re looking for a talented, friendly and open Senior Android Developer to help build our customer facing apps

Here in the Treatwell tech team we believe in Agile principles and values, our teams leverage Scrum and XP practices, we love Domain-Driven Design (DDD) and we are embracing eventual consistency in our new services. We like to use the right tech for the job but we don’t get seduced by the latest shiny fads.

Our current tech stack includes Java, Spring, Hibernate, ES2015, NodeJS, ReactJS (both client and on NodeJS server-side), Docker, Firebase and RabbitMQ, as well as iOS and Android apps. Everything runs in AWS.

Our Android stack consists primarily of Kotlin. We enjoy protocol oriented programming and using the latest features of Kotlin such as Jetpack Compose UI, Coroutines and Flow. We believe in a testable environment, with test coverage across the full testing pyramid, including unit tests, integration tests, end-to-end, UITesting and PACT consumer driven contract tests. Our code lives in Gitlab and we use Gitlab for builds, tests and deployments.

We do things well, but we're not complacent. We want to do great work and we want to be known for it. We're looking for people who can help us to continue to grow and improve as a team
You'll be responsible for:

• Collaborating within a cross-functional Agile team to build and ship clean, well-documented, and maintainable Android code.
• Developing features using modern Android technologies like Kotlin, Coroutines, Jetpack Compose, and other Jetpack libraries.
• Using tools like Gradle for build automation and deploying through CI/CD pipelines, while monitoring app performance and usage with platforms such as mParticle and Mixpanel.
• Contributing to the continuous improvement of our Android app architecture and development practices—helping us deliver features efficiently and reliably.
• Creating and maintaining user-focused native Android applications, and participating in the modernization of our mobile codebase.
• Working closely with product managers, designers, and fellow engineers to understand business goals and translate them into scalable technical solutions.
• Debugging, troubleshooting, and resolving issues to ensure smooth and reliable app performance.
• Staying current with the latest trends in Android development, and bringing new ideas to the team.
• Familiarity with Kotlin Multiplatform (KMP) or Compose Multiplatform (CMP) is a plus.

About you:

• You have hands-on experience developing Android apps using Kotlin and are familiar with modern Android development practices.
• You've built user interfaces with Jetpack Compose or XML layouts and care about writing clean, maintainable code that delivers a smooth user experience.
• You have an interest in good UX and visual design, and you enjoy contributing to products that are both functional and enjoyable to use.
• You've worked in Agile teams, understand the value of collaboration, and are comfortable delivering features in an iterative way.
• You're curious and motivated—always looking to learn new tools and techniques, and open to stepping outside your comfort zone when needed.
• You're a solid communicator, a team player, and enjoy contributing to a supportive, collaborative environment.
• You're starting to engage with the broader Android community or have a personal interest in tech beyond your day-to-day role.
• You can communicate fluently in English

About Treatwell

Hi, we’re Treatwell. Nice to meet you.

We’re a team of 700 passionate and brilliantly talented people across Europe. We’re the industry’s smartest salon management software, all connected to Europe’s leading bookings platform, working with over 50,000 salon partners across 13 countries, processing over 8 million bookings every month. And….breathe.

But we’re not done yet. We’re on an exciting journey to digitally revolutionise the hair and beauty community.

If this excites you, we might just have the role for you.

We’ll treat you with:

• 28 vacation days, plus national holidays
• A €40 voucher each month via our benefits platform Alleo – so you can treat yourself, too
• Mental health support through our partnership with OpenUp
• The possibility to use the Lease a Bike scheme after 7 months of employment
• Participation in the pension plan with Bright Pensioen after 7 months of employment
• A delicious freshly prepared office lunch each day, available for a small contribution
• One extra day off per year – the Treat Yourself Well Day – to recharge and take time for yourself, in your own

Equal Opportunities

We are committed to fostering a diverse, inclusive, and equitable workplace and are proud to be an equal opportunity employer. All qualified applicants will receive consideration without regard to their condition.