Rare Wales mention! I'm currently in Cardiff (capital of Wales)
Most jobs here are C#, Java, and Python. Job market is decent. Lots of people have been moving here lately as developers. Expect very low pay relative to London or US though.
I also know some people living in Cardiff but working remote for companies in Reading or Warwick. Also a few people working fully remote for Bluesky.
I'm personally moving out (to San Francisco) to pursue a startup though