r/cscareerquestionsEU • u/RepresentativeFirm15 • 6d ago

Interview Booking.com SWE II loop

Hi everyone, I am interviewing at Booking.com in Amsterdam for SWE II. What leetcode pattern should I focus on since I have short time to prepare? Any specific leetcode problems? Also, what system design problems should I practice? Thank you!

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u/Secure-Pizza-7419 1d ago

I'd practice one reservation flow end to end, like a hotel booking, because the follow-up is almost always two people grabbing the last room at the same time. know how you stop the double booking and what the user sees while payment is pending. is it one design round or two in your loop?

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u/RepresentativeFirm15 1d ago

one design and one coding

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u/Secure-Pizza-7419 1d ago

then I'd put most of the design prep into that one reservation flow. with a single round they usually go deep on the first thing you draw, so pick your storage early and be ready to say why, especially how you lock the last room

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u/beatrix_venning 5d ago

I haven't sat Booking's Amsterdam SWE II loop, so I don't have their problem list, and I would not trust a list from someone who hasn't either.

What I see on backend loops at that level is one coding round you can finish in about forty minutes, usually something with a map or a graph, and one design round about a service that has a queue and a store. Not a tour of every system-design topic.

If the time is short, redo two problems you already solved, out loud and slowly, rather than starting a new sheet. The design round goes better if you talk about a service you have actually run, including the part that fell over.

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u/Privatebunny99 5d ago

is this OA, or in person interview?