I have gone through your requirement. We agree your term of paying after completion of project on freelancer. Before moving further and finalizing price I need to have detail screen and scope of project the only we can give you exact costing of project and you can pay that after project is completed.
I have 7+ years of development experience in Microsoft technologies like .NET, C#, WPF, WCF, MS SQL, MVC, TFS.
1. We will sign NDA before you send detail requirement and scree.
2. Will do detail estimation and time require to complete the project and will try best to meet your deadline of 15 days.
3. Unit testing will be done by our developer.
4. You can test on our system and check if everything is running fine.
5. Once you confirm and release payment after project is completed and tested
6. Then will deliver source code.
NOTE - FREELANCER FEE WILL BE BEAR BY CLIENT.
Let me know if you have any more queries.
Regards,
Nitin