C# Developer in Paris, France

Upgraded a large Xamarin Forms iOS app to use the latest technologies, fix bugs, set up CI, add BLE communication, speed up the app, and train a developer to best practices.

Cosmo is the first connected brake light. I created both the Android and iOS apps using Xamarin Native. The app communicates with the Cosmo device through Bluetooth LE (light effects, crash detection, firmware update). The app also tracks the GPS position of the user in real time.

I also created the .NET Core API back-end on Linux.

The Vfr Tracks mobile app tracks the position and flight parameters of tourist aircrafts in real time. It creates maps of your flights that you can share with your teams. I created the mobile app in Xamarin iOS Native from scratch, consuming the middle-tier API already used for the website.

A vector graphics library for Xamarin iOS, Android, WP, and XamForms.

The resolution of retina screens was a revolution. With each increase of pixels per inch on mobile phone screens, developers have to create new images for each new resolution, increasing the workload and the application weight.

SVG vector graphics are very small files describing an image mathematically through lines and curves. They can change their size and resolution without any pixelation. There is no app performance degradation at all, as the device GPU knows how to accelerate these renderings.

This library allows you to change just one file in order to change your icons. Additionally, the component supports pressed states and color remapping, so one SVG image file is enough.

I spoke at the Appdays.fr mobile conference in November, 2013, in Paris, France at IBM headquarters. I demonstrated how to use C# to code an Android app and an iOS app, and how to reduce code duplication up to 80% by using a cross-platform library. I also demonstrated Windows phone apps, a Windows 8 Store app, and a Mac App Store app.

Developed mobile applications (Android, iOS), evolutions, and other updates.

Gave advice on app content and design and gave support on design tools.

Recruited, managed, and trained additional external developers to support fluctuating workloads (up to 4).

- Full Xamarin C# platform-specific technology.
- Device independent vector graphics dramatically reduced the time lost testing and fixing graphics on multiple devices.
- Used my own component XamSvg available on component stores.
- Integrated LinkedIn Connect, Facebook Analytics, Google Analytics, and AppsFlyer.

An app that I wrote to program and execute actions when a phone is near an NFC "tag." Examples include exchanging a VCard, connecting to WiFi without needing a password, sending an SMS, and more.