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2,346 backend software engineer interview questions shared by candidates

The third round was an algorithmic question related to a moderately difficult binary tree problem. The fourth round (with the head of the Infra) was the most enjoyable round. I was asked to design a Dropbox like service and we went further debating on the choices. The interviewer was polite and knowledged. There were a couple of multi threaded programming interview questions which I solved. The first two rounds were very disappointing. The CEO did not ask a single question about the startup work which I was doing for the previous 1.5 years, but instead asked about a three month work that I did with his friend, about 3 years ago. He asked me to write two programs / pseudo-code. 1) Design a HTTP service to work with a large file (which I could complete). (2) Write a program that would convert any PDF (with tables, vertical text, etc.) to a text file while retaining the formatting. He did not clearly explain the question, but kept on insisting that it could be done in 20 minutes. Nor was there any written document on what was expected. I did my best within half an hour and he recommended to finish and send later. I followed up with some questions over email and got no answers. The second round was also a similar question where a PDF got co-ordinates from a OCR and we need to extract the text from the JSON sent from OCR. I felt that I did a satisfactory job. I was not given an offer. The CEO seemed very uninterested in conducting the interview right from the beginning and did not even acknowledge the communication gap, even when I politely pointed out his lack of email response. They seemed like an interesting company but it didn't workout, more due to the incoherent interview process than lack of my skills, I felt. There were no feedbacks given too about the interviews even when I asked.
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Software Engineer, Backend

Interviewed at Instabase

3★
Jun 6, 2018

The third round was an algorithmic question related to a moderately difficult binary tree problem. The fourth round (with the head of the Infra) was the most enjoyable round. I was asked to design a Dropbox like service and we went further debating on the choices. The interviewer was polite and knowledged. There were a couple of multi threaded programming interview questions which I solved. The first two rounds were very disappointing. The CEO did not ask a single question about the startup work which I was doing for the previous 1.5 years, but instead asked about a three month work that I did with his friend, about 3 years ago. He asked me to write two programs / pseudo-code. 1) Design a HTTP service to work with a large file (which I could complete). (2) Write a program that would convert any PDF (with tables, vertical text, etc.) to a text file while retaining the formatting. He did not clearly explain the question, but kept on insisting that it could be done in 20 minutes. Nor was there any written document on what was expected. I did my best within half an hour and he recommended to finish and send later. I followed up with some questions over email and got no answers. The second round was also a similar question where a PDF got co-ordinates from a OCR and we need to extract the text from the JSON sent from OCR. I felt that I did a satisfactory job. I was not given an offer. The CEO seemed very uninterested in conducting the interview right from the beginning and did not even acknowledge the communication gap, even when I politely pointed out his lack of email response. They seemed like an interesting company but it didn't workout, more due to the incoherent interview process than lack of my skills, I felt. There were no feedbacks given too about the interviews even when I asked.

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