Secure Amazon S3 Based File System

I am looking for an experienced freelancer to develop a secure Amazon S3 based file system for me. I require the system to be built using the Standard version of Amazon S3 and C/C++ for programming language. I am not sure whether I need it to be equipped with a log for activities and access, so I would appreciate suggestions from the freelancer. This project is of high priority and I am looking for someone to take on this task straight away.