> Always ask to see code and talk to engineers about what their days look like. I believe there are very few legitimate reasons they won't show you their code, but more likely if they're refusing, it's because they're hiding something. When talking to an engineer, ask them how their code goes from idea to production and have it explained in detail.

In an ideal world it makes sense to have a look at the code and understand how the company works from a holistic standpoint. However in reality I doubt that many companies would allow that to happen at interview stage…