After the online test, I received a call from an HR manager who asked me about my life, including hobbies and so on. Following that, I traveled to Lisbon for two video interviews (focused on technical topics) with individuals from London. Afterward, I was invited to London to spend an entire day in a room where different people from various departments interviewed me.

What was the biggest challenge you faced, and how did you overcome it?

Tell me how you would improve this specific device.