I am so glad to see this. However, I feel often the problem is on the interviewer end as its very common to shoot algorithmic problems at FE engineers.
I wrote down some of my ideas for hiring questions here: https://medium.com/@lifeinafolder/not-so-crazy-ideas-for-hir...
Also out of curiousity, why haven't you made your profile public on the site? I think it would add more credibility.