I need help about my web view app

I am in need of an experienced developer to assist me with my web view app. The app is available on both Android and iOS platforms. Currently, I am facing a backend developing issue that needs to be addressed. As for design adjustments, I have specific changes in mind that need to be implemented. I am seeking a freelancer who has expertise in web view app development and can provide solutions to my problem efficiently. The ideal candidate should have the following skills and experience:

- Proficient in Android and iOS app development
- Knowledgeable in backend developing
- Experienced in implementing design adjustments and fixes
- Strong problem-solving skills
- Excellent communication and collaboration abilities
-PHP
-AJAX
-JAVASCRIPT

If you possess these skills and are interested in working on this project, please submit your proposal with your relevant experience and portfolio.