Upload a Flutter App on Play Store & Apple Store

My utility app is ready for launch, I need an app submission expert to upload it to both the Google Play Store and Apple App Store.

Key Tasks:
- Preparing the app for submission: This involves ensuring the app complies with all necessary store guidelines.
- Providing guidance on developer account management: While I have a developer account set up, I will need your expertise on managing it for the submission process.
- Publishing the app: Successfully launching the app on both platforms.

Specific Compliance Attention: The app includes in-app purchases which will require particular attention to ensure compliance with store regulations.

Ideal Skills & Experience:
- Proven expertise in app submission to both Google Play Store and Apple App Store.
- Prior experience with utility apps preferred.
- Excellent understanding of compliance with in-app purchases.
- Strong communication skills for effective guidance on developer account management.

Please share your previous work or experience in this area. Applications with relevant portfolios will be prioritized.