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Only react if you have 3+ years of experience.
We are looking for some with extensive experience in Android application development. We will rebuild the opensource csipsimple SIP application by changing some simple screens(logo etc). Next to that an account registration process will be added. A few API integration is required in this stage. This will be used for the registration process of a SIP account within this application.
Will deliver more details later. Just install the csipsimple application before contacting me and see if you are confortable working with that code.
This is just to get familiar with your skills set. Second phase requires more development capacity.