On Mastodon, I just found a link to the Terrible Software Blog. (Definitely a blog to follow, I just added it to my RSS reader).
I found this article pretty good: What Actually Makes You Senior.
But if you strip away the title, the salary, and the years of experience, there’s one core skill that separates senior+ engineers from everyone else: reducing ambiguity. Everything else flows from that.
Matheus Lima
It’s about the ability to handly fuzzyness and derisking projects. I really like the “they first make the problem clear. Then, and only then, they go to solve it.”
Check it out: https://terriblesoftware.org/2025/11/25/what-actually-makes-you-senior/