User Submitted Posts – Adding extra fields

Hello

basically I’d like to create a form that has about four fields like: Job Description, Salary, Roles and Responsibilites etc and have all those fields inserted into one wp_content field in database in wp_post table.

I basically want it this way so that people submitting the form will be forced to follow a particular format for the way the post is written. I don’t want to give them the one field to fill in as they wish.

Also can I insert multiple form fields into the wp_content field with html tags for further styling?

Thanks in advance for any ideas