In addition to painting an overall picture of the engineering job market in different regions of the world, Hired considered the impact of race and age on salaries. It calculated that in 2018, U.S. employers offered Asian tech job seekers an average annual salary of $137,000, while white job seekers were offered $135,000, Hispanic job seekers were offered $128,000, and black job seekers were offered $124,000. And that gap between the highest and lowest offers had widened significantly since 2017, from $6,000 to $13,000.

The study also took a look at the impact of age on tech salaries, finding that, in the United States, average engineering salary offers hit a peak of $149,000 at age 40, plateaued for a decade, and then started sliding down at age 50.