Average salary for LLVM Compiler Engineer

Hi everyone, I am not sure if this is the right place to ask such a question, but I am curious about what would be the average salary of an LLVM Compiler Engineer.

I have 3 years experience working in MLIR / LLVM / Codegen compilers, and I have a 70K salary in London.
Given how crazy is the inflation in UK right now, I am considering finding new jobs in London, or in others big cities in Europe.
I tried looking at Glassdoor or other websites, but I got completely different answers. Some websites mentions an 50K average, others 120K.
I hope here to have better answers, corresponding to my skills set.

If you live in London or other big cities in Europe, or if you are a recruiter, Iā€™d be curious to know what kind of salary I should expect.