Dynamic amount of custom field sets

Hello there!

I’m trying to figure out how I’m gonna make my backend for a flash site as quickly as possible.

Intro (you can skip this part):

I’ve been doing some research on which CMS to use and currently I’m down to either ModX or WordPress. The problem is: I need it to be mulitilingual and to have custom page types. Multilingual is easy with WP and custom page types / templates is easy with ModX.

I see either way I’m gonna have to do some programming in PHP, which is fine by me, but I’d like to do the least possible work on the back end and focus more on the front end. So let’s say i choose WP. Then I’m gonna have multilingual out of the way.

But then I’m going to have to add Custom Page Types and Custom Fields which seems quite straight forward. What I would like to know is

Problem:
Is it possible to add a dynamic number of groups of custom fields to a custom page. For example, I have an employment section on my site which can hold a number of different jobs. The page will contain a “Title” and a “Description”. It would also need some jobs containing a “Title”, “Description”, “Contact e-mail”, and a “Start Date”.

How would I go about and make it so I may add another “Job” to that same page, and then get another set of custom fields that make out a job.

Sorry for the long post but I don’t know how to explain myself in fewer words. 🙂

Thanx in advance and have a nice day!