Mobile Developer (Android / Java / Kotlin)
Blastup Mobile Developer (Android / Java / Kotlin)
Summary
Builds and maintains native Android apps (Java, with Kotlin a plus) for a boutique development agency, integrating REST APIs and working on client projects like Reactive and Worldline All-in-One. Day to day: coding, debugging performance issues, code reviews, and collaborating with designers and backend engineers.
Technologies: Java • Android SDK • REST APIs
At Blastup, we build digital experiences that shape the way people interact with technology. As a boutique development agency, we work on meaningful, high-impact projects where every detail counts and every team member makes a difference.
We’re looking for a Mobile Developer who’s passionate about crafting smooth, reliable, and intuitive Android apps. If you love clean architecture, efficient code, and solving complex problems through technology, you’ll feel right at home with us.
You’ll work on exciting projects like Reactive and Worldline All-in-One, developing apps used by thousands of users daily — all while collaborating with a talented team that values creativity, precision, and continuous learning.
What You’ll Do
- Develop, maintain, and optimize native Android applications using Java and the Android SDK.
- Integrate with RESTful APIs, external SDKs, and backend systems.
- Collaborate with UI/UX designers and backend engineers to create seamless user experiences.
- Ensure code quality through testing, documentation, and code reviews.
- Debug and resolve performance issues, ensuring smooth, stable app operation.
- Stay up to date with Android best practices and evolving technologies.
Requirements
Minimum 1 year(s) of professional Android development experience.
Strong proficiency in Java and the Android SDK.
Solid understanding of Android lifecycle, UI components, and threading models.
Experience integrating REST APIs, JSON, and networking libraries (Retrofit, Volley, OkHttp).
Familiarity with Git and collaborative development workflows.
Ability to write clean, maintainable, and testable code.
Problem-solving mindset and attention to performance and usability.
Excellent communication skills and a collaborative attitude.
Nice to Have
- Experience with Kotlin or a willingness to learn it.
- Familiarity with Firebase, Push Notifications, and in-app billing.
- Knowledge of modern architecture patterns (MVVM, Clean Architecture).
- Experience publishing apps to Google Play Store.
- Basic understanding of iOS development or cross-platform SDKs.
Benefits
- A competitive salary aligned with your experience.
- Full social security coverage.
- A MacBook and modern development tools.
- A fun, collaborative environment with creative freedom.
- The opportunity to work on international projects and scale your skills.
- A culture that values innovation, curiosity, and personal growth.