> I've come to realise it seems to be used just to refer to someone who can do their job without an excess amount of handholding.
Being competent enough to work independently is an extremely low bar for the distinction of being a senior in your field.
In most other industries that just means you’re not a trainee any longer.
For example my wife just entered the medical field doing administrative work. She’ll be a trainee for a full year. It will be a decade or more before she’ll be qualified to be in any sort of senior role.
I mean at the end of the day I don’t feel that strongly about it, but the problem is that when titles become meaningless it’s very hard to for example, communicate what role you’re hiring for, or who the right person to lead a new project is.