A new study has found that female engineers earn significantly less than men, with the disparity in salaries hitting its peak at the key mid-career stage.

The 2013 global salary report of professionals in the engineering and optics sector released by the International Society for Optics and Photonics (SPIE) found that the median salary for male engineers was 36 per cent higher than that for women overall, at $79,755 and $58,431, respectively. The income gap between…