Adding two properties on Customers

Good evening to all.
Congratulations on this wonderful job.
I do not know what Post had to put my question and therefore forgive me.
I have to put two properties to customers class (Job and Doy (Doy is Tax Band for greeks))
Evey time a have to update my Site with a new one i must rewrite the code again and again.
Please if possible put into future upgrades of these two properties.
Thank you.

Consider using [CustomerAttribute] table

Thanks for the tip,
but what the difference between them.
I mean [Customer] instead [CustomersAttribute].
(sorry for my ignorance baucause i am new in this project)

Try this

https://www.nopcommerce.com/boards/t/5274/how-to-use-nop_customerattribute-table.aspx

It's a lot easier than adding new fields to the customer table.

Thank's to all.
I give a try.