Android Developer

Location: Warsaw, Poland (hybrid) (PL)

Description

Rakuten Viber is one of the most popular and downloaded apps in the world. Working with us provides a unique opportunity to influence hundreds of millions of our users and to be part of the journey that makes us a super-app. Our mission is to make people’s lives easier by enabling meaningful connections, from precious moments with family and friends, through managing business relationships to pursuing their passions. 

We are a global team of engineers dedicated to creating the best tools to ensure safe, convenient communication for millions of users worldwide. Our culture is built on innovation, teamwork, and a commitment to excellence.

We’re looking for an experienced, highly motivated Android developer to join our team.

As an Android Developer, you will be responsible for design and development of Viber Android client. We offer many interesting and challenging tasks that will allow you to extend your technical abilities delivering the product of the highest quality to our users.

Responsibilities

• Participate in the development of the Viber client for Android, contributing to the enhancement and maintenance of existing features
• Collaborate with a diverse team of developers to efficiently produce new features, complete proposed initiatives, and contribute to overall application improvements
• Quickly grasp clients’ requirements, technology needs, and solution architecture to deliver high-quality solutions
• Work closely with product managers, the design team, and others to develop appropriate solutions that align with user experience and design guidelines.

Requirements

• 5+ years of commercial experience in Android application development
• Strong proficiency in Java, Kotlin, and/or Android development
• Solid understanding of Collections, Concurrency/Multithreading in Java, Coroutines/Flow, and experience with Android Jetpack components (WorkManager, Paging, ViewBinding, LiveData)
• Proficient in Dagger 2, multi-module projects, and Gradle for building and maintaining Android applications
• Thorough understanding of mobile application design principles and UX
• Experience with databases, including SQL, optimization and Room
• Proficiency in writing unit tests and version control using Git
• Familiarity with design patterns (GoF), architecture, and refactoring of applications
• Experience in MVP/MVI/MVVM architecture-based development
• Intermediate spoken level of English for effective communication within the team.
• Experience leveraging AI tools to enhance productivity or decision-making is a strong advantage.

Advantages

Skills