Senior Mobile Engineer (iOS + Flutter)

About the role

We are looking for a Senior Mobile Engineer to build mobile applications used in real‑world healthcare environments. A significant part of the work is building custom UI components that are accurate, responsive, and reliable under continuous, real‑time data.

Key responsibilities

• Build and maintain mobile applications using iOS (Swift) and Flutter (Dart).
• Design and develop custom, data‑dense UI components with a high bar for accuracy and responsiveness.
• Write clean, scalable, and maintainable code following modern development practices.
• Work with concurrency and background processing to keep the app responsive under continuous data.
• Profile and optimise applications for performance, memory usage, and battery across devices and OS versions.
• Integrate external libraries and build reusable modules or frameworks where useful.
• Integrate REST APIs and handle secure on‑device data storage.
• Participate in code reviews and contribute to architecture and technical discussions.
• Own releases to the App Store and Play Store, including monitoring and production support.
• Contribute to the Android side where shared code requires it.

Required profile

• 4+ years of experience building production mobile applications, with at least 2 years hands‑on native iOS (Swift).
• Hands‑on experience in Flutter with a good understanding of its architecture.
• Experience building custom UI components on iOS.
• Strong knowledge of multi‑threading and concurrency on iOS (Swift Concurrency and/or GCD).
• Experience diagnosing and fixing memory leaks, retain cycles, and performance issues using Instruments or similar tools.
• Experience integrating third‑party libraries and SDKs.
• Experience independently releasing and maintaining apps on the App Store.
• Working knowledge of Android fundamentals and app lifecycle.
• Strong programming fundamentals, OOP, and problem‑solving ability.
• Comfortable taking ownership of a problem and driving it to completion.

Required skills

• Swift
• Dart
• Flutter
• iOS development
• Android fundamentals
• Swift Concurrency
• Grand Central Dispatch (GCD)
• Instruments (performance analysis)
• REST API integration
• Third‑party SDK integration
• App Store release process

What we offer

• Work on products that make a real impact in healthcare.
• Solve engineering challenges in rendering, performance, and device integration.
• Strong ownership of the mobile platform with a supportive engineering team.