Ladders examples https://github.com/jorgef/engineeringladders
Spotify https://engineering.atspotify.com/2016/02/technical-career-path/ https://engineering.atspotify.com/2016/02/spotify-technology-career-steps/
Medium: https://medium.com/s/engineering-growth-framework/engineering-growth-introduction-8ba7b78c8d6c
Kickstarter: https://gist.github.com/jamtur01/aef437a79fee5a9cefdc
Chartbeat: https://engineering.chartbeat.com/2015/06/05/engineering-ladders/
Fog Creek https://www.joelonsoftware.com/2009/02/13/fog-creek-professional-ladder/
Buffer: https://buffer.com/resources/engineering-career-framework/
Artsy https://artsy.github.io/blog/2015/04/03/artsy-engineering-compensation-framework/
Pragmatic Engineer https://newsletter.pragmaticengineer.com/p/engineering-career-paths
Ladders references from the market: https://blog.tryexponent.com/learn-software-engineering-levels-to-advance-your-career/
Squares https://developer.squareup.com/blog/squares-growth-framework-for-engineers-and-engineering-managers/
(for UX) Shopify https://ux.shopify.com/what-do-you-want-to-be-when-you-grow-up-15a0590e2c3a