[lolsoftware]

This sounds pretty much ideal. Two people [vaguely] familiar with a problem working through it together. Both have the opportunity to evaluate each other. This is exceedingly rare in practice. Obviously you got (and accepted) an offer.

Some of the best interviews I've given and taken have gone roughly this way. It's nearly impossible to set this up intentionally, though.

[em-bee]

do pair programming on any coding problem. could be a live one from your actual work, or some FOSS project using a similar tech stack