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We're Hiring Part-Time Senior Flutter Mobile Engineer

Location: Fully Remote (Indonesia-based)

Are you an experienced mobile engineer looking for a flexible, remote opportunity to work with cutting-edge Japanese startups in eSports, AI, and Blockchain?

We're looking for a Part-Time Senior Flutter Mobile Engineer to join our team and help drive product excellence across global projects.

What You'll Do

  • Lead and develop high-quality iOS/Android applications using Flutter.
  • Support and extend the core platform for our clients.
  • Implement back-end infrastructure components.
  • Create and maintain unit tests and integration tests to ensure top-notch quality.

Hiring Criteria

  • 5+ years of experience as a Mobile Engineer (iOS/Android) — excluding internship experience.
  • Minimum 1 year experience as Senior, Lead, or Principal Software Engineer at:
  • Traveloka, Tokopedia, Gojek, Bukalapak, Grab, Blibli, , Garena, DANA, or Ajaib.
  • Strong Flutter skills (must-have).
  • Fluent in English (written and spoken).
  • Living in Indonesia.
  • Able to contribute at least 20 hours per week.
  • Full Remote — no daily commute required.

Required Skills

  • Proficiency in Flutter
  • Familiar with testing & debugging tools
  • Able to set up and maintain unit/integration tests
  • Comfortable working in English-based collaboration (e.g., pull requests, documentation)

Bonus Points If You Have:

  • Experience with React Native, Swift, or Kotlin
  • Contributions to Open Source projects
  • Experience in large-scale web or mobile service operations