ITShifting.com has analyzed more than 100,000 IT job listings on Glassdoor.com to find out hiring trends to watch for in 2020 in the American tech job market. The analysis includes data for 33 IT occupations in the 25 largest US cities and surrounding towns: the highest-paying IT occupations, IT salaries in the US, cities with the highest salaries, and companies offering highest salaries to IT workers.