I mentioned £200k because it's near the top end for a senior engineer in London (although not the very top). FAANG, some Unicorns, trading firms will pay this to a senior engineer. Bear in mind this is total compensation, so part of that will be in stock or options.

For engineers based in the UK that are shocked by this number I'd recommend reading this [0] article. It's about compensation in the Netherlands but the same principle holds for the UK.

[0] https://blog.pragmaticengineer.com/software-engineering-sala...