Alohi Senior Backend Developer Interview Questions

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Senior Backend Developer Interview

10 Oct 2024

Anonymous interview candidate

No offer

Negative experience

Difficult interview

Application

I applied online. The process took 7 weeks. I interviewed at Alohi (Plan-les-Ouates) in Oct 2024

Interview

- 1st call : HR overview and chat about resume, experiences, expectations. - 1st test : 1 python code review, 1 UML infrastructure schema, 1 NoSQL database model - 2nd call : technical discussion with PM and Senior Backend Developer - 3rd call : technical discussion with another Senior Backend Dev - 2nd test : a full trial day at the office with a project to build from scratch and to improve with randomly drawn tasks

Interview questions [7]

Question 1

Describe the architecture of a faxing SaaS using UML. Be precise about technologies and protocols you would use

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Question 2

Given these NoSQL collection schemas, suggest improvements

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Question 3

Given this python pull request content, review the code and suggest solutions

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Question 4

If our product needs to implement a one-group-per-user hierarchy, how would you implement it ?

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Question 5

Using python, mongo and S3, build an API that can handle CRUD operations for files

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Question 6

How would you deploy the project you just built ?

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Question 7

Now you API is ready, add an endpoint that returns statistics about user's files by time frame

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