Cross-Platform App Development Needed

I'm in need of an experienced app developer who can work on both iOS and Android platforms. As the primary function of the app has not been decided yet, I'm hoping to find someone adaptable who can pivot according to my project's needs. I expect this project to be completed within a month.

Ideal skills and experience:
- Proficiency in iOS and Android development
- History of adaptive and flexible working
- Ability to complete tasks in a timely manner