I applied online. The process took 3 weeks. I interviewed at Cerillion (London, England)
Interview
They first give out a technical test(1hr) which includes programming questions, then MCQ on SQL, then aptitude MCQ; After this, they give you a verbal reasoning test(45 mins ig). You are called for an interview when you finish the tests. A panel of three people interviews you. When I went in, 3rd person was on video call.