Technical Owner / Developer for Existing iOS Marketplace App (PHP Yii2 Backend) We are looking for a developer or small team to take technical ownership of an existing mobile application currently in its final pre-production phase. The application is already developed and functional. The main remaining work involves bug fixes, stabilization, code improvements, and preparing the system for launch. Application Overview The app is a mobile marketplace where users can buy and sell new or used products. Users can: create product listings browse products contact sellers purchase items through the platform Tech Stack iOS: Swift (Xcode) Backend: PHP (Yii2 framework) Database: MySQL (managed via phpMyAdmin) Version Control: Git Existing hosting and services are already configured. Responsibilities Review the existing codebase and architecture Fix remaining bugs and stability issues Refactor parts of the code where needed Improve performance and maintainability Maintain backend services and configurations Manage builds and App Store releases Support ongoing improvements after launch Requirements Strong experience in iOS development Experience with PHP and Yii2 Good understanding of MySQL databases Experience with server and service configuration Ability to work independently and manage the project technically Engagement Part-time collaboration initially Ongoing monthly work Potential transition to full-time after official launch Budget: ~$500/month (initial phase)