Senior Flutter Developer Needed

I'm seeking a seasoned Flutter developer to enhance my existing app. The primary task is to add a city selection module and upgrade the app to the latest version.

Key Requirements:
- Expertise in Flutter, Dart, and Firebase
- Experience in integrating new features into existing applications
- Proficiency in maintaining clean architecture and readable code
- Strong troubleshooting skills, especially with build failures and Gradle configurations

Ideal Skills:
- Proven track record in app development and enhancement
- Ability to deliver scalable and future-proof solutions
- Knowledge in UI/UX improvements is a plus but not mandatory

Please provide examples of similar work.