Need some changes in app frontend and backend (Pakistan Only)

I am looking for a freelancer who can make some changes in both the frontend and backend of my Android app. The ideal candidate should have experience in app development and be familiar with both frontend and backend technologies.

Skills/Experience Required:
– Strong knowledge of Android app development
– Proficiency in frontend technologies such as XML, Java, and Kotlin
– Experience with backend technologies such as PHP, MySQL, and RESTful APIs
– Ability to quickly understand and implement changes in an existing app
– Attention to detail and ability to troubleshoot and fix bugs

Timeline:
– The changes need to be implemented immediately.

Please provide examples of your previous work and share any relevant experience or certifications.