Contract RoleEngineering

Flutter Engineer

ContractRemote
FlutterDartiOSAndroid

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hello@anythink.cloud

About Anythink

Whatever you're building, Anythink handles the backend. We're a Backend-as-a-Service platform covering Auth, Payments, File Storage, Search, Workflow Automation, Database and Admin Dashboards — so product teams can ship in weeks instead of months.

Flutter developers are a fast-growing segment of our users. We want to make Anythink the easiest backend to integrate with from Flutter — a clean SDK, great documentation, and first-class support for Auth, Storage, and REST APIs.

The Role

This is a contract role focused on building and maintaining the Anythink Flutter SDK (published on pub.dev). You'll create a clean, idiomatic Dart package that makes it easy for Flutter developers to integrate Anythink Auth, Storage, and platform APIs into their apps. You'll also build example apps and contribute to the documentation for mobile developers.

What you'll work on

  • The Anythink Flutter SDK: a pub.dev package wrapping the Anythink REST API
  • Authentication integration helpers (JWT token management, session refresh, OAuth flows)
  • Storage SDK: file upload, download, and management from Flutter apps
  • Example apps demonstrating real-world Anythink + Flutter patterns
  • Documentation and setup guides for mobile developers
  • Custom projects for our customers who want to integrate with Anythink

Must-have

  • Flutter and Dart: production-grade apps shipped to the App Store and/or Play Store
  • REST API integration from Flutter: http, dio, or similar; JSON serialisation
  • iOS and Android deployment: provisioning profiles, signing, release builds, and automated signing with fastlane or similar
  • pub.dev package publishing: you've shipped or maintained a Dart package
  • Solid understanding of async patterns in Dart (Futures, Streams)

Nice-to-have

  • Platform channel experience: bridging Flutter to native iOS/Android code
  • State management: Riverpod, Bloc, or similar
  • WebSocket integration from Flutter
  • Firebase background: useful context for understanding what Anythink replaces
  • Experience writing SDK-style packages designed for developer ergonomics

What we offer

  • Competitive day rate: based on experience
  • Fully remote: work from anywhere
  • Potential to extend or transition to a longer-term engagement

How to Apply

Share links to Flutter apps you've shipped, pub.dev packages you've published, or GitHub repos. Tell us roughly what day rate you're looking for and your availability.

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