I applied online. I interviewed at Sainsbury’s (London, England)
Interview
First stage (where I got to) was an video call with 2 team members, they talked about the grad scheme, what they do etc. Then asked a few technical questions.
Interview questions [3]
Question 1
What is the difference between pass by reference and pass by value
Can't remember the exact question but it was an abstract-ish problem and they asked what would be the outcome given certrain conditions. It required knowldege of search/data structure algos, I think the solution required a binary tree.
Coding test with 3 questions
Pre-recorded video interview with 5-6 questions
Assessment center with Technical knowledge and system design and group exercise.
Overall, no coding question in the onsite so just prep your Web design, data structure and algorithm knowledge and you should be fine.