Submit a CV/Cover Letter, and following this you'll be arranged a set of video interview questions (two of which are simple numerical ones at the level of A-level- you won't be asked anything nasty.) After the digital portion, you'll get a 1.5 hour interview- three presentations (personal, technical about your own project, then about one of their technologies.) The three interviewers were quite nice and speaking candidly was fine in instances- I didn't feel as though it was excessively formal. My advice would be to really research your chosen topic- I spent two days researching mine and knowing the physics background really helped (given that two of the interviewers were physics-oriented.) Also, one more bit of advice- on your "Technical Talk" about your own chosen previous project, make it very very generalist- I misunderstood this bit and made assumptions on the level to which it should be given that I shouldn't have. They don't want to know the details of how you carried out the analysis itself, propagated errors, etc etc- just the rough outline of the project as if explained to layman audiences. The questions will be where that'll pop up more in detail. Good luck!

First round was an online one-way interview. The questions were about soft skills like team working etc. , whether you are considering pursuing higher education, what you've read about the company's technologies, and 3 technical questions. These last questions were simple but the time pressure made it trickier. After that I had a non-assessed teams meeting with the recruiter who gave me more information about the company and gave me the opportunity to ask questions. The recruiter had experience in the role I was applying for, so was able to give me a good insight into the job. Final round was a 15 minute presentation and an hour of questions with 3 interviewers. The presentation was divided into 3 sections: one about me, one about a project I have worked on and one about a technology that they asked me to learn about. For the latter I was given a paper to read and a video to watch to help me prepare. After that I was given an offer and spoke with two recent graduates over teams. I was pleased with the offer and had a good impression of the company but declined in order to pursue higher education.