I wrote a blog post about how to construct engineering hiring interview loops at early-stage companies!

Early engineering hires will set the tone for the company's future engineering culture which will have a permanent impact on the company’s ability to deliver on product objectives. It can also be hard, costly, and time-consuming to course-correct after making hiring decisions which turn out to be incorrect. On top of all of this, early-stage startup employees may spend more time with each other than they do with their own family during the early years of a company. For all of these reasons, it’s critical to approach engineering hiring with a rigorous and repeatable process that ensures quality and consistency.

https://www.moonfire.com/perspective/early-stage-hiring-for-engineering-teams-part-one/