Sponsor a conference as a means of hiring?
There's an interesting dynamic here @ Kubecon. Some of the sponsors are nearly certainly only here in a talent-acquisition mode. For example, apple, shopify. They are not meeting their customers here, their presence is small (apple has a 5x10' tabletop w/ a curtain backdrop... big marketing$$$!).
Interestingly, there's a big whiteboard you can scribble out an ad-hoc job ad. Shout out to my friends @ Macnica, your ad is there on the right!
Now, I was kind of tired, so no, I didn't troll the board with some fake ad. Hopefully no one else did 🙂 But this is 100% a sellers market... there are far more 'help wanted' than 'job needed' ads.