As with most things military, there is a lot more support in the US. There is the @vetswhocode group on Twitter which is a charity set up to get vets back into work. America in general does this a lot better than we do!
Yes, unfortunately you're right that they do the whole signposting and support better than we do.
There are bodies in the UK who are providing more support for example https://techvets.co/ and many of the large financial institutions in London have veterans programs these days, but we've got a long way to go in comparison!
I'd love to hear from my betheren over the pond what the signalling and transition process is like for guys and gals leaving the US forces.