I couldn't understand what you meant by wasn't Sophie then so I looked her up. She's a transgender woman. Transgender people are getting it in the neck a bit at the moment, it's nice to have an example of such an impressive person who is one.
Acceptance of transgenderedness means that we call people by the name they wish to choose but it does not mean we eradicate the past. Same if someone gets married and changes their name. It should be no big deal and nothing awkward.
It is all about merit. It gets a bit silly if we give people extra cringeful 'well done!' marks just because of some identity politics thing.
Sophie is not the only successful transgender person in UK tech, however I think she just gets on with her work. Also fully admirable is Kate Craig Wood and she does write on the subject of how it all works out. Since your interest is piqued and this is the internet, here you go. Again, I would say in Kate's work it is more her business that defines her rather than the transgendered aspect, so you should find how they run their business (not beholden to VC money etc.) quite fascinating too: