adding company logo in jobs listing

Hi,
I’d like to add company logo in jobs listing.
I’m quite sure it’s not possible now, so I’d like to customize it myself but I need some help/hints.

I have an idea to use some empty column in database and store the url of the logo for each job offer.
Then I’d like to use function get_awsm_job_details to get this URL (e.g. ‘permalink’ => get_permalink(),
‘copmplanyLogoUrl’ => get_logoUrl()

But the problem is that I don’t know how does this get_permalink() function work to be able to implement something similar.

Could you please give me some hints to do it?
Regards,
Dominik