Wow, I read your informative link. Where are these jobs? I went through a round of interviews last year for Sr. positions, across a number of locations in the U.S., and quite frankly, the average salary for the positions interviewed for was $80k less than most of those in the list, and $230k less than the SWE manager in the list.
The page lists the locations, and the businesses, where these jobs are placed. Unless you live on the coast (or end up in Denver/Austin), you're going to have a harder time reaching these salary numbers.