For comparing career ladders also check out Levels.fyi (I'm a co-founder). We put together a 'Standard' track that succinctly lists the roles / responsibilities for each level and can be seen here: https://www.levels.fyi/?compare=Standard,Google,Facebook,Mic...
Yes, we've been adding more roles in the last few weeks. Sales is on the list. For more questions / suggestions reach out to hello <at> levels <dot> fyi. (I don't want to detract from the main thread)
