Very nice, I think reversing the job marketplace for tech jobs is a viable need (will only work as long as demand is higher than supply)

however, what really worries me is that you use sendgrid, but still your confirmation email got to my spam folder.

Does this mean that sendgrid.me (what was used in that case) reputation is down?

I strongly suggest that you get your own email IP, you will have low bounce / unsubscribes anyway as you send only transactional emails

(I'm not affiliated or have any relatives in sendgrid)