Visual Studio 2012, C#, .NET Framework 3.5-4.0
MSSQL 2012, LINQ, EF (Entity Framework), [url removed, login to view]
SOAP, REST, WCF, JSON, XML
TCP-IP, SFTP, FTPS, HTTPS
PGP, 3DES, Rijndael, RSA
16 freelancers are bidding on average $1616 for this job
We already have built same Point of Sale (POS) applications for many industries. Some of them can be found in our freelancer portfolio and website [url removed, login to view] Ready to discuss it briefly with you.