McCallum had a huge task on his hands after joining the Met as CIO two years ago: taking charge of digital transformation for a force that is notoriously slow to adopt changes.
Recently McCallum has led the rollout of cloud collaboration service Box, which is expected to save many working hours for officers on the street.
With many hundreds of high-quality submissions received, Computing has chosen the shortlist for the coveted Women in Tech Awards. Is your name on the list?
Computing speaks to the CIO steering committee of its upcoming IT Leaders Festival to understand how IT leaders need to develop themselves and their careers over the coming months and years
Although its base is in London, Code Enigma has no central location and has always operated remotely
How can you create a safe environment that enables failure, innovation and growth within the team? Find out at the IT Leaders Festival 2020
Did you make the cut?