Jonathan Kartun

Currently am the Tech Lead for Android building software for a major banking institution.

Leading the further development of the iOS app.

Building a health app from the ground up. My task was to create a secure networking with certificate connection protocol for activating the app and accessing health profiles. Downloading JSON and dynamically generating screens according to the content from the server as well allowing for offline storage and viewing with Core Data and Codable. Also implemented a QR scanner for profile unlocking.

They are an external contractor to a major Bavarian car manufacturer. My role was adding new features and functionality to an existing application and sometimes working on architecture planning also working alongside the backend developers. Mainly working with RxSwift, UIKit, Foundation, Swinject, Alamofire, REST API, and Push Notifications.

On contract basis. Leading the dev of a start-up involving a new method of compression with custom encryption aspect. Sole developer on the prototypes and main product. Extra dev with MySQL, PHP, HTML, JavaScript, Android, Desktop C#, Bluetooth, TCP/IP comms and encryption/decryption engines. • Working closely with the inventor, converting ideas into app • Planning and design of app done independently • Side prospective implementations of encryption/compression

• Was the primary developer for the VCpay SA [Virtual Credit Card Generator] (iOS, J2ME), Tusk Recharge (J2ME + P25, H50), Medscheme, Fedhealth and Medshield (iOS). • Assisted others in building and fixing bugs on other apps • Was in charge of modifying the API for Windows Phone and iOS VCpay SA. • Converted API to Xamarin cross-platform • Was in charge of market deployment • Assigned as Technical Lead • Managed the source control and verified all commits to SVN and Git repositories