We are looking for a Senior Mobile Cross-platform Developer with strong proficiency with Firebase for one of our clients. You are a perfect candidate if you are growth-oriented, you love what you do, and you enjoy working on new ideas to develop exciting products.

What we’re looking for:

  • Minimum of 5 years of experience in mobile application development with a strong portfolio of released applications.
  • Extensive experience with Firebase services and integrations in mobile applications.
  • Proficiency in mobile development frameworks and languages such as Flutter, React Native, Swift, Kotlin, and Java.
  • Strong knowledge of testing frameworks and debugging tools for mobile applications.
  • Excellent analytical and problem-solving skills with a proactive approach to identifying and resolving issues.


  • Design, develop, and maintain high-performance mobile applications for both iOS and Android platforms using Flutter, React Native, or native languages (Swift, Kotlin).
  • Implement and manage Firebase services such as Authentication, Firestore, Realtime Database, Cloud Functions, Cloud Messaging, and Crashlytics to enhance mobile applications.
  • Write clean, maintainable, and efficient code with a focus on reusability and best practices. Conduct unit testing, integration testing, and end-to-end testing to ensure application stability and performance.
  • Identify and troubleshoot performance bottlenecks in mobile applications and optimise for maximum performance and user experience.

What Proxify offers

  • Career-accelerating positions at cutting-edge companies
  • Discover exclusive long-term remote engagements at the world's most interesting product companies.
  • Hand-picked opportunities, just for you
  • Skip the typical recruitment roadblocks and biases with personally matched engagements.
  • Fast-track your independent developer career
  • Start small and gain more freedom to take on new engagements as you build your independent developer career.
  • A recruitment process that values your time
  • Only one hiring process with the possibility of several positions, without any additional tests.