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Software Engineer Backend Interview Questions

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2,349 software engineer backend interview questions shared by candidates

1. HTTP vs HTTPS 2. Design twitter table. Consider two tables, tweets and users. Suggest a way to associate user_id with tweet_id. 3. Symmetric vs Asymmetric ciphers 4. Suggest how to implement Whatsapp's end to end encryption.
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Software Engineer, Backend Intern

Interviewed at Innovaccer

3★
May 11, 2021

1. HTTP vs HTTPS 2. Design twitter table. Consider two tables, tweets and users. Suggest a way to associate user_id with tweet_id. 3. Symmetric vs Asymmetric ciphers 4. Suggest how to implement Whatsapp's end to end encryption.

1st round - was more hands on coding (nothing too complicated) 2nd round - was more theoretical about implementing a feature E2E (client, server, db). In my opinion this was the hardest interview. I feel that in the others I did quite well and they were not too difficult. 3rd round - was system design like interview. Very theoretical with scalability and consistency in mind. 4rd round - was hr interview, pretty straight forward.
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Senior Backend Software Engineer

Interviewed at monday.com

4★
Aug 8, 2022

1st round - was more hands on coding (nothing too complicated) 2nd round - was more theoretical about implementing a feature E2E (client, server, db). In my opinion this was the hardest interview. I feel that in the others I did quite well and they were not too difficult. 3rd round - was system design like interview. Very theoretical with scalability and consistency in mind. 4rd round - was hr interview, pretty straight forward.

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