Android Developer

10/2016 – 7/2017

Working on VOIP client application. Application to call over internet.
App has service to communicate with C++ libraries (sip protocol libraries).
App communicate with C++ libraries over JNI.
App use many Android feature like ringing, blue-tooth headset.
App connect to VPN and SIP server. Communicate with activation server to get the certificate.
On app user can show contacts and call-log.
I’m responsible for creating Android applications and bug fixing.

Android, C++, Java (allg.), Git, JavaScript Object Notation (JSON)

6/2015 – offen

First project – SDK to communicate with BLE device
Wrote SDK for other developers to facilitate communication with their Apps with customer external device. Write, read and listen for data from blue-tooth low energy device.

Second project – Image Sender
Creating application for sending images and image processing ( cut, rotate and filters)

Third Project – DLNA + UPNP mobile applications
Work for German company on multi-country project in few developers group.
Three apps for Android and Windows Phone.
Renderer, Server and Client of DLNA + UPNP standard.
Server share files over Wi-Fi,
Renderer has players (video, audio, image) to show content. Content has sent by Cilent
Client can work as player(video, audio, image) or can make instruction to show them on Renderer.

Apps has C++ libraries to communicate between them.
Each app has service to communicate with C++ library.
I wrote JNI parcel and Android Java code.
I wrote Windows Runtime component to communicate with C++ from C# code and C# App code.
Communicative between application and service through AIDL interface.
Apps are integrated with few web services Google drive, Dropbox, Facebook.

Android, C++, Java (allg.), JNI (Java Native Interface), Picasa

12/2014 – 6/2015

Project management: loyalty application, product’s catalogue application.
Responsible for:
- contact with client
- assigns tasks
- Create Architecture
- Expansion in integration over Redmine, Jenkins and Git. Automatic tests
- Participate in application design.

Git, Jenkins