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3,199 automation test engineer interview questions shared by candidates

How to print even & odd numbers concurrently using thread? How to use Optional Parameter? If you have two generics defined of type string, int in main method, but you have to run only string one.How you will do so ? What is the difference between hiding method & overriding method? They said to write the code. Write a code to make a list of object type? They will give some test scenarios to write test cases. Some Automation basics. Some Sql queries like find the second highest salary from employee table.
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Automation Test Engineer

Interviewed at Siemens

4.1★
Jun 15, 2017

How to print even & odd numbers concurrently using thread? How to use Optional Parameter? If you have two generics defined of type string, int in main method, but you have to run only string one.How you will do so ? What is the difference between hiding method & overriding method? They said to write the code. Write a code to make a list of object type? They will give some test scenarios to write test cases. Some Automation basics. Some Sql queries like find the second highest salary from employee table.

I'll focus on the technical part of the interview only. This consisted of creating an automated test solution within 5-7 days, The AUT is the production app itself. This is a bit tricky, because there are measures in place to detect fraud and automated scripts, which are usually bypassed in test environments. As I understood it this part will somewhat change in the future, because it's not 100% fair. Afterwards there was a technical discussion, which was a bit easy, but on point. There was no nonsense like reciting documentation from memory, that you encounter in other lame interviews at other companies.
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Senior Test Automation Engineer

Interviewed at MailerLite

4.4★
Apr 19, 2025

I'll focus on the technical part of the interview only. This consisted of creating an automated test solution within 5-7 days, The AUT is the production app itself. This is a bit tricky, because there are measures in place to detect fraud and automated scripts, which are usually bypassed in test environments. As I understood it this part will somewhat change in the future, because it's not 100% fair. Afterwards there was a technical discussion, which was a bit easy, but on point. There was no nonsense like reciting documentation from memory, that you encounter in other lame interviews at other companies.

Solve either one the below coding question you have to move zeros either to end of the array or bring them to beginning of the array. For example, if {14, 0, 5, 2, 0, 3, 0} is the given array, then moving zeros to end of the array will result {14, 5, 2, 3, 0, 0, 0} and bringing zeros to front will result {0, 0, 0, 14, 5, 2, 3}. Solve without using For loop and without using a new blank array/collection. Write a Java program to replace all leading and trailing zeroes in a number without using Replace function. Eg. input - 0001120380.0000 output - 1120380, input - 00012.001200 output - 12.0012
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Automation API Test Engineer

Interviewed at R Systems

3.9★
Nov 6, 2024

Solve either one the below coding question you have to move zeros either to end of the array or bring them to beginning of the array. For example, if {14, 0, 5, 2, 0, 3, 0} is the given array, then moving zeros to end of the array will result {14, 5, 2, 3, 0, 0, 0} and bringing zeros to front will result {0, 0, 0, 14, 5, 2, 3}. Solve without using For loop and without using a new blank array/collection. Write a Java program to replace all leading and trailing zeroes in a number without using Replace function. Eg. input - 0001120380.0000 output - 1120380, input - 00012.001200 output - 12.0012

Version of selenium and testng, difference between get and navigate to, if there is no select element in dom then how to select value from dropdown, code to switch to different window, about multiple inheritance, encapsulation
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Automation Test Engineer

Interviewed at MathCo

3.9★
Dec 29, 2024

Version of selenium and testng, difference between get and navigate to, if there is no select element in dom then how to select value from dropdown, code to switch to different window, about multiple inheritance, encapsulation

Difference between questions like comparable vs comparator, arraylist vs linkedlist, finally vs finalize. What is lambda and features of Java 8, how to run failed test cases in cucumber or testNG, how to run parallely in testing and cucumber, asked to write xpath of an element in a webtable in a live website and then a program based on the table. Kannan board, test strategy document,
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Test Automation Engineer

Interviewed at EPAM Systems

4★
Jun 26, 2024

Difference between questions like comparable vs comparator, arraylist vs linkedlist, finally vs finalize. What is lambda and features of Java 8, how to run failed test cases in cucumber or testNG, how to run parallely in testing and cucumber, asked to write xpath of an element in a webtable in a live website and then a program based on the table. Kannan board, test strategy document,

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