DB problem: more records into a unique cell

Hello everybody, I'lltry to explain my problem as good as possible.
I need to create a database with excel for managing resumes. I have data, then I fill a db and automatically, according to particular criteria, the names of the potential candidates for a job position must appear.
My problem is this. A person has either 0 or more than 1 job experience. But I have only one cell. Each experience has a duration.
How can I put into only one cell more than one experience, and in another cell, the duration of each?
Example

NAME JOB EXPERIENCE DURATION
MARCO ACCOUNTANT 1 YEAR
MARKETING 2 YEARS
I wanna select a person with an experience in marketing.

Please help me!

Try hitting ALT ENTER to create a new line in a single cell.