To determine the population size of product managers or product owners (at Microsoft, they're called program managers), UX designers or product designers, UX researchers or user researchers, and front-end engineers or web developers
According to a 2019 Medium report, as of June 2019, there were 17,801 product mangers in the United States, which represent an increase of 32% in the demand for the position over the last two years.
The industries driving most of the demand include the e-commerce sector, the fintech and financial services sectors, and management consulting.
According to a 2018 Medium report, there are over 238,000 UX designers, working for 129,000 companies in the U.S.
An Emsi Analyst report estimates that the demand for will continue to increase by at least 10% every year until 2023.