A lot of good software engineering is just tribal knowledge. The people who know know. Things like when to create an ugly hack because the perfect solution may

A lot of good software engineering is just tribal knowledge. The people who know know. Things like when to create an ugly hack because the perfect solution may result in in your existing customers moving over to your competitor. When to remove some tech debt and when to add to tech debt. When to do a soft delete vs when to do a purge. These things are learnt when a customer shouts at you and you realize that you may be most intelligent kid on the block but it wont really help the customer tonight as the code is already deployed and your production deployment means a maintenance window.