We search for freelance developer who can write custom SMPP Server (protocol v.3.4). The server should work only with SMS (not MMS). Server must be able to handle many routes for sending messages, and additionally listen on port for incoming messages. Database is ready, it should be changed a little for the purpose of the server. It must be able to handle with no limit routes, and to receive SMS-es. The server should be multi-thread. The database is MySQL. Further details will be given on the selected candidate.