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Backend Engineer Interview Questions
15,469 backend engineer interview questions shared by candidates
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Given a list of accounts and using the information in data module, return a dictionary where each key is an account and its value is dictionary with the accounts total orders, completed orders and pending orders example: given ["u2"]. For this challenge you will consume an API to fetch todos individually. Given a list of todo ids, fetch each todo and return a list of todos Example of a request: https://jsonplaceholder.typicode.com/todos/1 Improve the performance of the above function afterwards if have not done yet. In this challenge you need to read the csv file and perform the following: Clean the data as best as you can Calculate the mean of the annual salaries, calculate the max and minimum of the annual salaries Calculate the most common employment_status and most common married status As a bonus you need save the clean data as a VALID JSON file.
how many blank lines do you leave between functions (python)
What technologies did you use in you professional experience?
Problem solving and DB related question like multi join, views, API questions
I was given a Django task to code in 3 days
What is OOP ? What is overload ? What is override ? Can overload be use together with override ?
Out of dozens of questions (rapidly progressing within the 1 hour allotted to the interview), I mainly recall this one: What does the following statement do: Stream.of(1,2).peek(i->System.out.print(i));
Final round, coding interview: given a web framework and a root node in a map, make an endpoint which returns a list of each node and its corresponding neighbors in the map. Follow up question: make an endpoint which accepts a specific target node and returns its neighbors in the map.
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