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Senior Flutter Developer (Dart/ iOS/ Android)

4GOO
From Home, Thu Duc City, Ho Chi Minh
From Home, Cau Giay, Ha Noi
From Home, Hai Chau, Da Nang
At office
Posted 7 hours ago
Job Domain:
AI Software & Services

Top 3 reasons to join us

  • Be a Pioneer: Join a startup shaping the future
  • Flexibility: Work your way, on your terms
  • Real Impact: Your ideas drive real results

Job description

  • Design, develop, and maintain cross-platform mobile applications with Flutter
  • Define and implement mobile architecture and best practices for scalability and performance
  • Collaborate with product managers, designers, and backend developers to deliver features end-to-end
  • Ensure high performance, security, and smooth user experience across devices
  • Integrate mobile apps with RESTful APIs, GraphQL, and third-party SDKs
  • Set up and maintain CI/CD pipelines (GitLab or similar) for mobile builds and deployments
  • Write clean, maintainable, and testable code using Dart and Flutter best practices
  • Perform and optimize automated testing (unit, widget, integration)
  • Participate in code reviews and mentor junior/mid-level developers
  • Support the release process into app stores (Google Play, App Store)
  • Stay updated with Flutter ecosystem updates and mobile development trends

Your skills and experience

  • 5+ years of professional experience in mobile development, including 3+ years with Flutter
  • Solid expertise in Dart and Flutter framework (widgets, state management, navigation, etc.)
  • Experience with cross-platform development and platform-specific integrations (iOS/Android)
  • Knowledge of native iOS (Swift) or Android (Kotlin/Java) is a strong plus
  • Hands-on experience with API integration, authentication flows, and offline storage
  • Familiarity with GitLab workflows, Git branching strategies, and CI/CD pipelines
  • Strong debugging, profiling, and performance optimization skills
  • Experience publishing apps to Google Play and App Store
  • Ability to write unit, widget, and integration tests
  • Excellent collaboration and communication skills in cross-functional teams
  • English level: B2 or higher (for international teamwork and documentation)

Nice to Have

  • Experience with Firebase, push notifications, and analytics tools
  • Familiarity with clean architecture, DDD, or modular mobile architectures
  • Knowledge of DevOps practices for mobile pipelines (Fastlane, Codemagic, or Bitrise)
  • Exposure to real-time features (WebSockets, gRPC, streaming)
  • Open-source contributions or active involvement in the Flutter community
     

Why you'll love working here

  • Work on a next-gen social commerce platform with massive market potential, collaborate with a global team, and shape cutting-edge mobile solutions in a flexible, innovative start-up environment.
  • Salary based on experience. 
     

4GOO

Company type
IT Product
Company industry
AI Software & Services
Company size
1-50 employees
Country
Germany
Working days
Monday - Friday
Overtime policy
No OT

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