Modify some functions on my personnal website use to make statisticals calculations

I am actually looking for a freelancer who would accept to work with me during during several days to bring some modifications to my personnal website I use to make statistical calculations. So design is very low and is not the principal modifications I have to bring to my website. Most of modifications are : erase some data from my database, display some values already displayed in the database, create new simple functions to my software calculation process, duplicate some functions allready developped on my website, migrate all my website on a new server.