apply online and then got an interview opportunity with the hackerrank test, after thet an hr call and then two rounds of tech interviews, after that there is a beharviour interview

I recently interviewed with Booking.com for a software engineer role. The process was well-organized and took about 3–4 weeks. It started with an online assessment on HackerRank with a couple of LeetCode medium problems. That was followed by a technical screen where I did live coding and discussed basic algorithms. The final round was a full day of back-to-back sessions: algorithmic coding, system design (something like designing a hotel availability checker), a behavioral round using STAR questions, and a chat with a manager about company values. The interviewers were professional and friendly, and the problems felt relevant to Booking's actual business. On the downside, some coding rounds felt repetitive, and I didn't get much feedback after being rejected. Overall, it was a fair but challenging process. My advice: practice medium-level array and hash map problems, review basic system design, and have solid STAR stories ready. I'd rate it 4 out of 5 stars and would recommend it to other engineers.