On average, female scientists and engineers earn less than their male counterparts, and the difference is getting bigger, according to the 2019 New Scientist/SRG salary survey Sponsored 27 March 2019 Ezra Bailey/Getty By Sean O'Neill The gender pay gap for UK scientists has widened. The average female scientist or engineer now earns £35,600, while the average for men is £45,800 – a 22 per cent difference.