i want programmer to sell prepaid codes (mobile codes , internet codes ... etc) with POS devices.
so we will store prepaid codes in the database
and the merchant which have the POS device can print the codes with his balance ...
also system administrator can add codes to the database.
this system must be secure. you can bulid it from zero or use a ready system no problem :D
the device is in C language.
7 freelancers estão ofertando em média $985 para este trabalho
Good day. I can sell SDK for development applications for POS terminals: Verifone(Verix, VerixV, Verix eVo, Nurit, MX...), Ingenico, Visiontek, PAX and some other. You can connect with me via skype: possoftware1