My best piece of advice for anything to do with immigration is to go straight to the source: the GOV.UK website will tell you in plain English what type of visa you'll need and the requirements that go along with it.There is lots of information about working abroad, but if you're coming to the UK to work and you don't have a UK or EU passport, you're most likely going to need a work visa.
First, if you're not a UK or EU citizen, then make sure you get your visa sorted before you leave.
A tourist visa does not give you the right to live or work in the UK.
However, there are a lot of important things you need to know before making your move.
London is one of the world's best cities and a truly unique place to live.
I took a look at the Heineken Beer commercial that was deemed racist by Chance the rapper...
it usually leads to something we didn't bargain for when we are polite in return.
Most people I meet are more interested in complaining about the weather, talking about where they live, moaning about housing prices, or any of the million-and-one other things that people talk and complain about here that have nothing to do with immigration.
Basically, if you come to London from abroad to work, expect: to be asked about your home country a lot, to be teased occasionally about your vocabulary/pronunciation of certain words, to meet tons of amazing people, to have loads of amazing experiences, and to pay more for accommodation than you ever thought possible.
However, in my personal opinion, this way of thinking about London does little to capture the reality on the ground.
There are plenty of places in the North or West that I would consider less desirable than places in the South and East.
If you fail to get the correct paperwork, you are breaking the law and you should expect consequences if you're caught.