> 4. Readable by programmers who'll work with that code in the future. That could be juniors or seniors, that depends on a particular company and project. Unde

> 4. Readable by programmers who'll work with that code in the future. That could be juniors or seniors, that depends on a particular company and project. Underrated. Layers of unnecessary abstractions or clever solutions (e.g. complex types in python when simple would do) is a mark of a junior engineer.