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Sr Staff Software Engineer Interview Questions

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227 sr staff software engineer interview questions shared by candidates

HM Call - 1. To understand past projects, scale, high level knowledge, etc. 2. Pretty straightforward. Machine Coding Round - 1. Did not involve any technical questions. 2. They seem to just ask simple questions around abstractions, code extendability, etc. 3. Few subjective questions on different scenarios such as using a cache, security tool, etc. HLD Round - 1. I was told this would be a HLD round but turned out to be a machine coding round. 2. Design a inmemory ledger kind of a system that can debit, credit amount. Add extensions with interface / abstraction for reserve balance, etc.

Senior / Staff Software Engineer

Interviewed at Vance (India)

3.4★
Dec 19, 2024

HM Call - 1. To understand past projects, scale, high level knowledge, etc. 2. Pretty straightforward. Machine Coding Round - 1. Did not involve any technical questions. 2. They seem to just ask simple questions around abstractions, code extendability, etc. 3. Few subjective questions on different scenarios such as using a cache, security tool, etc. HLD Round - 1. I was told this would be a HLD round but turned out to be a machine coding round. 2. Design a inmemory ledger kind of a system that can debit, credit amount. Add extensions with interface / abstraction for reserve balance, etc.

=== TECHNICAL === • I was asked to implement JSON.Stringify. (ehem, ehem, creativity and novelty in the problem to ask!) • I finish that with unit tests in half an hour which later I found was working way better than all the version I could find online in random people's public github accounts. • The interviewer asked me to support recursive loops in Javascript. He didn't even have a working example and it was super-tricky to think about it -- an object having properties to point to the object itself to form a loop of "pointers" in Javascript! I modified my code to cover that too. I tested that and it worked perfect. • And guess what, the feedback (more than a week later) was that there are "some concerns about my Javascript" so they need to have a second phone interview. lol. I could only laugh! I just bailed out and canceled it. Enough is enough.
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Senior/Staff Software Engineer

Interviewed at Lyft

3.8★
Nov 29, 2017

=== TECHNICAL === • I was asked to implement JSON.Stringify. (ehem, ehem, creativity and novelty in the problem to ask!) • I finish that with unit tests in half an hour which later I found was working way better than all the version I could find online in random people's public github accounts. • The interviewer asked me to support recursive loops in Javascript. He didn't even have a working example and it was super-tricky to think about it -- an object having properties to point to the object itself to form a loop of "pointers" in Javascript! I modified my code to cover that too. I tested that and it worked perfect. • And guess what, the feedback (more than a week later) was that there are "some concerns about my Javascript" so they need to have a second phone interview. lol. I could only laugh! I just bailed out and canceled it. Enough is enough.

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