Back End Developer Interview Questions

1,559 back end developer interview questions shared by candidates

public class Person { Person father; Person mother; Gender gender; Integer age; List<Person> children; int level = 0; public enum Gender { Male, Female; } } For the above class, you basically have to implement 2 methods. public List<Person> getOldestSisters() public List<Person> getGreatestAncestors()
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Senior Software Engineer, Java Back End

Interviewed at Veeva Systems

3.5
19 Aug 2015

public class Person { Person father; Person mother; Gender gender; Integer age; List<Person> children; int level = 0; public enum Gender { Male, Female; } } For the above class, you basically have to implement 2 methods. public List<Person> getOldestSisters() public List<Person> getGreatestAncestors()

round 1: Why coming to Berlin from India? Why Zalando? What do you know about Zalando? Salary expectations? Do you have any questions? round 2: Tell me about about a situation when there has been a conflict between you and your colleague, how you resolved it. Tell me about about a situation when there has been a conflict between two of your colleagues, they approached how you resolved it. How do you convince people to choose a technology? Tell me about about a situation when you went against odds / didn't listen to your manager. How you convince people to help you with technical issues. Tell me about about a situation which proves you are motivated to take up challenges and learn new technologies. How you choose a a particular technology/solution from among multiple technologies/solutions.
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Back End Developer (Java)

Interviewed at Zalando

3.6
22 Nov 2015

round 1: Why coming to Berlin from India? Why Zalando? What do you know about Zalando? Salary expectations? Do you have any questions? round 2: Tell me about about a situation when there has been a conflict between you and your colleague, how you resolved it. Tell me about about a situation when there has been a conflict between two of your colleagues, they approached how you resolved it. How do you convince people to choose a technology? Tell me about about a situation when you went against odds / didn't listen to your manager. How you convince people to help you with technical issues. Tell me about about a situation which proves you are motivated to take up challenges and learn new technologies. How you choose a a particular technology/solution from among multiple technologies/solutions.

The Codility Test was about taking an integer and determine how many different arrangements of the number are possible. So if given, 132, arrangements are 132, 123, 231, 213, 312, 321. So the function should return 6.
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Entry Level Back-end Engineer

Interviewed at Rakuten

3.6
22 Oct 2016

The Codility Test was about taking an integer and determine how many different arrangements of the number are possible. So if given, 132, arrangements are 132, 123, 231, 213, 312, 321. So the function should return 6.

You are given a 5L and a 3L jug. Both jugs are really oddly shaped and don't have any measure markings, so you can only fill the jug up to the top. Given unlimited water, can you somehow make 4L of water from these two jugs?
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Back-end Software Engineer

Interviewed at Grow Technologies

5
25 Jul 2017

You are given a 5L and a 3L jug. Both jugs are really oddly shaped and don't have any measure markings, so you can only fill the jug up to the top. Given unlimited water, can you somehow make 4L of water from these two jugs?

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