To carry out the analysis shown in this infographic, Adzuna.co.uk collated every single tech job advertisement posted in the last month on over 150 different UK job boards, a total of 100,000 job ads. Using the advanced search technology that powers its job search engine, the data was semantically analysed based on "ad content" and salary rates. This data was then matched to the annual statistics published by the Higher Education Statistics Agency (HESA) and the office of the National Statistics.