App Developer

Salt Search

Posted 15 hours ago, valid for 11 days

London, Greater London EC1R 0WX

Full Time

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Sonic Summary

A digital health company with over 30 million users is seeking an experienced Mobile App Developer proficient in Flutter and C#.
The role involves leading the transition from Xamarin to Flutter and developing medically certified mobile features.
Candidates should have a minimum of 3 years of software development experience, ideally with a focus on mobile applications.
The position is fully remote and offers a salary of up to £70,000, depending on experience and client requirements.
The developer will work closely with design, product, and backend teams to enhance app performance and user experience.

We're currently partnering with a digital health company that's leading the way in brain training and cognitive fitness, with over 30 million users worldwide.

They're now hiring for an experienced Mobile App Developer (Flutter & C#) to help lead their transition to Flutter and scale their mobile platform. This role will play a major part in shaping features that are medically certified, prescribed by doctors, and covered by public health insurance in Germany.

Key Responsibilities:

Develop and maintain mobile features using Flutter and C#
Support the mobile tech transition from Xamarin to Flutter
Work closely with design, product, and backend teams to deliver new functionality
Monitor app performance and stability to ensure a seamless user experience
Contribute to the technical evolution of a health product with real impact

Experience Required:

Strong commercial experience with Flutter and C#
3+ years in software development, ideally mobile-focused
Solid knowledge of object-oriented programming

Location: Fully Remote anywhere in the UK

Salary: Up to 70k

*Rates depend on experience and client requirements

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