iOS + Android Marketplace App Development.

Hello, We’re looking for a professional mobile app developer. We need the App developed for iOS+Android and getting it online in both app-stores under our business name. The App we need developed is a Peer-to-peer marketplace (no auction, no in-app purchases, no ads). In terms of functionality it must have: 1. First time opening the app, user must create a new account with username, email + password. Or if he already has an account, he can login. 2. Upon creating an account, there will afterwards be a 2 slide introduction to the app. 3. Homepage: A search field + feed of the latest items. 4. On an item-listing there will be: Item photo, Title, Description, Category, Location, Price, Contact button and a section for the sellers other items (if he has more than 1 item for sale). 5. The App must have a built-in messaging system for users to connect with eachother if they want to purchase an item. There will be no payment options or anything, it is up to users to agree on payment through messaging. 6. Submitting a new listing must have the featured to Take a photo with the camera or use a photo from the gallery. 7. There must be a section with an overview of the users listings he has for sale, which he can then remove/edit. 8. A messaging section, with an overview of people that have gotten in touch regarding the items they have for sale. 9. Finally a settings page for general app settings where a user can change his display-name, notification settings etc. We already have the design made, we just need an app-developer to put it all together into a functioning app. Please refer to the attachment for a preview of the design. Important: When applying for this job, please send us a portfolio of apps you have developed, specifically with similar functionality.