iOS developers needed

We are looking for iOS developers who have their own published apps. This is a long term contract and here are details about this project. 1. We will create milestone($200) and you have to send one of your existing ios(swift) source code that is already published on App Store. 2. We will integrate our push notification service to your app and update your app on app store. 3. Once new version of your app is published on App Store, you have to transfer it to our company’s apple account. After that, we will release milestone and if you have more apps, we will continue to work with you. Regarding the payment guarantee, before you transfer your updated app, we will pay half budget($100) first and will pay rest half after you transferred the app to our company's account. You MUST read the job description carefully before applying this job. Plz put the word "I can" on top of your proposal. Looking forward to hearing from you.