I was contacted by the technical sourcer via email, which then proceeded to an informal chat followed by a technical phone screen the following week.

This was followed by an arrangement for onsite interviews in London, in 4-6 weeks' time (to allow for visa and interview preparation).

The interviews consisted of. 4 x 45-minute sessions (1 behavioral, 2 coding, 1 system design).

Feedback was quick, with the hiring decision delivered in just one week and the offer extended the week after.

Overall, the recruiter was very friendly and helpful, providing preparation materials and answering any questions I had regarding the entire process.

Phone screen questions:

1. For a given binary tree, print paths from root to all leaf nodes, one path per line.
2. Given a sequence of positive integers "seq" and an integer "total", return whether a contiguous sequence of "seq" sums up to "total".

(Onsite interview questions are covered by NDA, therefore they cannot be posted, but it can be said that the knowledge of data structures and handling edge cases are important for coding interviews.)