Is there a document / post out there that describes engineering levels with archetypes like "Fixer", "Generalist", "Specialist", etc.

I thought, at one point, I saw one from Slack that seemed inspired by the Facebook levelling system, but I can't seem to find it. Am I misremembering where I saw this or mashing up two things or something?

I think it wasn't https://staffeng.com/guides/staff-archetypes/. Visually, I thought it had a darker background and more bullet points or something?

@danluu There's a book with 6 staff engineer archetypes, trying to remember which one

Edit: this one https://staffeng.com/guides/staff-archetypes/

@danluu lmao I love that everyone is linking you to the thing that you explicitly say it wasn't

@danluu Not really engineering levels, but some coworkers produced this document on “anchortypes” - not sure if it’s what you’re thinking of, though:

https://labspractices.com/learningpaths/anchor-playbook/

@danluu I think Michael O. Church had written something like this. Do you remember reading this at https://michaelochurch.wordpress.com?