Cross-Platform Flutter Utility App

I'm seeking an experienced Flutter developer to create a utility tool mobile app for both iOS and Android platforms.

Key Requirements:
- Development of a high-performance, user-friendly mobile app.
- Expertise in Flutter, Dart, and mobile app development.
- Experience with iOS and Android deployment.
- Ability to integrate necessary APIs and backend services.
- Strong UI/UX design skills.

Ideal Skills and Experience:
- Proven track record in developing Flutter mobile apps.
- Familiarity with utility/tool app functionalities.
- Knowledge of app store submission processes.
- Ability to work within budget and meet deadlines.

Please share your portfolio and relevant experience.