Freelamcer required with intense knowledge of security Encryption, S/MIME and SHA2 -- 2

This project is relatively complex and therefore it's important that you (and your team's) ability to communicate in English is proficient. We are looking to build a verification system for email and mobile communication based on our proprietary patent pending system. The system will be interlinked with a database which will need to support millions of rows of data. Skills required: -In depth knowledge of security (Encryption, S/MIME and SHA2) -Databases (MongoDB and SQL. Preferably both) -Understanding of email client architecture -iOS/Android Due to the nature of the project we ask you to sign an NDA prior to receiving the specific information.