For more on what it's like being a North Korean software hacker working for the state, listen to the Lazarus Heist podcast. https://www.bbc.co.uk/programmes/w13xtvg9/episodes/downloads

The whole thing is good but IIRC season 1, episodes 5 and 6 are the ones most specifically about what it's like to be a North Korean software engineer in China stealing money online.