Bug Fixing for iOS Mobile Application

We are looking for an experienced iOS developer to resolve several issues with our mobile application. Users have reported bugs that negatively affect the app’s functionality and overall experience.
Our goal is to conduct a thorough analysis of the issues, improve the app’s performance, and fix all known bugs to ensure a seamless user experience. The issues include UI display problems, performance lags, API interaction errors, and occasional crashes. We need a swift and effective resolution to restore optimal functionality.
Key tasks include fixing UI problems (e.g., the "Login" button not appearing on certain iPhone models), addressing performance issues (e.g., app lag when loading data lists), resolving API errors (e.g., 500 errors when fetching event data), and debugging application crashes (e.g., crashes when opening the user profile on specific devices).
If this project matches your expertise and experience in iOS development, please share your portfolio and examples of similar projects. We look forward to reviewing your proposals!

Technology Stack: Mobile App Development, iOS Development, Android, Flutter, API Integration, iPhone, iPad