Check for email existence in Mongodb, it is taking too long to check, advise some solution(There are indexes in place and there is no problem in implementation)
Backend Software Engineer Interview Questions
9,111 backend software engineer interview questions shared by candidates
Setup a simple service with high availability.
How to implement a DB index for a string field How to implement a DB index for a numeric range (e.g give me all rows with age > 10 and <50 and describe the algorithm to get those rows (including o notation) How to implement an index combining both string field and numeric range
Explain your approach to the task: why did you use the class system that you implemented?
¿Como optimizarías las queries a base de datos?
Given a binary tree, write a function to check if it is a valid binary search tree (BST).
Just a CV questions...And a great Logic test.
Algorithm and system design. New grad should also expect system design questions.
why you want to be placed here?
Experiencia laboral
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