Medium’s Engineering Growth Framework
A Career path in engineering – includes links to large company levels and stuff: Engineering Career path (PDF)
Another Engineering Ladder from RentTheRunway:
spreadsheet: https://docs.google.com/spreadsheets/d/1k4sO6pyCl_YYnf0PAXSBcX776rNcTjSOqDxZ5SDty-4/edit#gid=0
text: https://docs.google.com/document/d/1SxmQBrDZvj16veuc2OVO0wUX7a7vEKPM-57dNLXhuEk/edit