Wrote a Blog Post
The startup I used to work at recently announced their series D funding round completed. That announcement mentions a 2 billion valuation (That's a lot). Not many folks get the opportunity to work at an early-stage company and see this achieved, including me. I left right before Series B was completed, 2 years after the seed round. I learned a tremendous amount about being at an early company and thought I would share my thoughts.

https://dev.to/bdougieyo/working-at-a-startup-from-seed-to-series-a-4nem