What I am interested in is growing companies that have already experienced some initial success and are looking to scale up their products and services into larger markets.
The high degree of pivoting that start ups and other experimental, fail fast initiatives must do yield code that is all about reducing time to market and not much focus on scalability.
I believe in Service Oriented Architecture. You instrument your services with lots of metrics. You then capture and analyze those metrics over time in order to find subtle bugs and fix them.