Development and maintenance of mobile app tasks (Native; Swift and Kotlin with MySQL in DB)

 (iOS and Android application native for events ticketing). Since a few days ago we decided to dispense with our CTO and the development team that he managed through freelancers, we are in the need to replace these mobile development tasks (Swift and Kotlin) in addition to the web part with (MySQL, PHP, Codeigniter, Azure) with a freelancer to carry out the development / maintenance / compilation of daily tasks