I recently wrapped up 4 years at a Big Company. During that time, I switched teams once, I transitioned from an Individual Contributor (IC) to an Engineering Manager (EM), the company name changed from Square to Block, and the number of employees increased from something like 5,000 to 15,000. Those numbers may seem small potatoes compared to many other Big Companies. For me, having only worked (full-time) at $\le$ Series C startups prior to joining Square, this was a 1 or 2 order of magnitude...
