Flutter App Deployment on iOS

I need assistance with building and deploying my existing Flutter utility app on iOS using Xcode. The app is already developed and is intended to support iOS, Android, and Web platforms.

Requirements:
- Experience with Flutter and Xcode
- Familiarity with iOS deployment processes
- Ability to troubleshoot and resolve build issues

Ideal Skills:
- Flutter development
- iOS app deployment
- Xcode proficiency
- Problem-solving skills

Looking for a freelancer who can ensure a smooth build and deployment process. Please provide your experience and estimated timeline.