Flutter Engineer – iOS Native & Flutter
- Location
- Kolkata, IN
- Work mode
- On-site
- Employment type
- Full-time
About the job
This role is for a hands-on mobile engineer who can build Flutter applications and also develop and troubleshoot native iOS components in Swift. The core requirements are Flutter and Dart, native–Flutter interoperability, iOS SDK integration, sound architecture, secure coding, performance optimization, and testing across Flutter and native layers. Experience with banking, FinTech, payments, advanced iOS security, Swift concurrency, and performance profiling is preferred rather than mandatory. The structured experience range is 3–8 years, and the base location is Bengaluru; the description also mentions occasional travel to client locations. Work mode is not specified, and the description lists B.E./B.Tech/MCA/MBA/MS as professional qualifications without identifying a single required qualification. Responsibilities
• Design and develop scalable mobile applications using Flutter and Dart.
- Design and develop scalable mobile applications using Flutter and Dart.
- Develop and maintain iOS native components using Swift.
- Build robust Flutter-to-iOS Native integrations using
- BasicMessageChannel
- Custom Flutter plugins
- Integrate native iOS SDKs and third-party frameworks into Flutter applications.
- Develop Flutter plugins/wrappers for native iOS capabilities where required.
- Analyze and troubleshoot issues across the Flutter, Dart, iOS, and native SDK layers.
- Design applications using Clean Architecture, SOLID principles, design patterns, and modular architecture.
- Implement secure coding practices across Flutter and iOS native layers.
- Integrate authentication, payment, security, analytics, monitoring, biometric, and other enterprise SDKs.
- Optimize application performance, memory usage, startup time, network usage, and UI responsiveness.
- Flutter and Dart application development
- Native iOS development using Swift
- Flutter-to-iOS interoperability using platform channels and custom plugins
- Integration of native iOS SDKs and third-party frameworks
- Clean Architecture, SOLID principles, and modular design
- Secure coding, application security, and encryption
- Mobile performance optimization and cross-layer debugging
- Unit, widget, integration, and native-layer testing
From Ubique Systems's careers page (Company careers page), checked 1 Nov 2026.
How to apply
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- Fill in the form and upload your résumé there. Jobiwork never sees your application.
- Ubique Systems will reply to you directly. No real employer asks you for money to apply.
Posted 28 Oct 2026 · checked 1 Nov 2026 · Report this job