Work on my React Native App

I need an expert app developer to finish my existing React Native app and ensure it looks good on both iOS and Android platforms. It is integrated with a rest API, still have a few integrations that need to be completed.

The app is 90% complete for Version one.

Key Requirements:
- Experience in React Native development is a must.
- Familiarity with both iOS and Android platforms.
- Ability to deliver efficient, high-quality solutions within budget.

Ideal Skills:
- Strong problem-solving skills
- Proven track record in app development and maintenance
- Excellent communication for project updates

If you have a portfolio showcasing similar work, please include it in your bid.

Please describe in your own words what projects you have worked on that required you to go in learn the code and fix all the issues.

This is for a LONG TERM partnership with months and maybe years of partnership. Looking for someone to come in demonstrate their speed, quality, and follow through to establish a long term partnership.

You must be free to focus full time on this, no exceptions.