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Lead Backend Developer Interview Questions

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12,387 lead backend developer interview questions shared by candidates

The program to develop was a client which retrieves json formatted info from a REST api and put it into a CSV file. The questions ordered by interview were: 1. a) Java Generics b) Different types of sql JOIN c) How to deal with java.lang.OutOfMemoryError 2. a) Java Generics b) Differences between ArrayList and LinkedList c) Pattern Designs d) SOAP services e) TDD and Behavior-driven development f) Java 8 new features g) Have you ever used Git? 3. a) REST apis b) Dealing with long running queries c) How do you test your code? d) Have you ever worked with Spring? 4. Related to Google Stock Screener (the new CTO used to work for Google). Design a cache system and estimate necessary hardware. 5. Non technical questions.
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Java Backend Developer

Interviewed at Omio

3★
Feb 4, 2015

The program to develop was a client which retrieves json formatted info from a REST api and put it into a CSV file. The questions ordered by interview were: 1. a) Java Generics b) Different types of sql JOIN c) How to deal with java.lang.OutOfMemoryError 2. a) Java Generics b) Differences between ArrayList and LinkedList c) Pattern Designs d) SOAP services e) TDD and Behavior-driven development f) Java 8 new features g) Have you ever used Git? 3. a) REST apis b) Dealing with long running queries c) How do you test your code? d) Have you ever worked with Spring? 4. Related to Google Stock Screener (the new CTO used to work for Google). Design a cache system and estimate necessary hardware. 5. Non technical questions.

22 OOP questions. Many trick questions and overly specific things that aren't relevant to actual work. 2 coding exercises. One was a very tedious task of filtering a list of lists of strings, converting some of the strings to DateTimes, sorting by DateTime, then returning it back. The other was building something that converts integers to roman numerals. WHY?
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Backend Engineer

Interviewed at IT Labs

3.6★
Nov 22, 2023

22 OOP questions. Many trick questions and overly specific things that aren't relevant to actual work. 2 coding exercises. One was a very tedious task of filtering a list of lists of strings, converting some of the strings to DateTimes, sorting by DateTime, then returning it back. The other was building something that converts integers to roman numerals. WHY?

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