iOS Expert is required -- 3

We need an iOS Expert to work on a complex iOS project based on swift 5.3x, and xcode 12.4x Stage 1: Upgrade the app source code from swift 3.4 to swift 5.3x the recent version Stage 2: Remove some old .xib screens and upgrate it to story board Total 32 screens Stage 3: Modification phase, and adding some new functions Project detail and source code will be shared with selected freelancers only