Embedded C Code STM32F4

We are looking for an embedded C code software engineer with experience in STM32F4 ARM processors. We would like the work performed on the STM32F4 Discover Board ideally using the STM32F4DIS-BB Base Board for the microSD card interface. The job it to implement a FAT32 file system using the FatFs library. We will need to use the long file names and we will need to use the SDIO interface instead of SPI (for speed). The objective is to have all of the associated files of the FatFs library work (I think there are six). As you may know, this code is provided by ST, however you will be responsible for the SDIO low-level drivers and ensuring that it works. Please let me know what development environment you plan to use. We are using CrossWorks and IAR, however, we can be slightly flexible in this area, depending upon what you plan to use. Please be sure to let me know if you have the STM32F4 Discovery Board with a microSD card interface and what development software you would use. We have various projects and this could lead to ongoing work for the proper candidate. We appreciate your attention to our listing.