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Software Developer Interview Questions

Software development is an in-demand career path, and it's also a job that can provide opportunities for high earnings and professional fulfillment. When interviewing for software developer positions, you'll likely face questions about your hard and soft skills and how you manage projects efficiently.

Top Software Developer Interview Questions & How to Answer

Question 1

Question #1: What type of software development do you currently do?

How to answer
How to answer: When answering a question about your current software development projects, emphasize the coding languages and technology stack that you use. This question helps an interviewer determine if you have the skills needed to handle the workload.
Question 2

Question #2: Describe a development issue you faced and how you solved it.

How to answer
How to answer: Talking about a specific situation allows you to describe your problem-solving methods and the actions you took to resolve the problem. Use the STAR method (situation, task, action, result) to provide a clear picture of the problem you faced in development and what you did to fix it.
Question 3

Question #3: How do you handle the QA process?

How to answer
How to answer: Quality assurance is an important aspect of software development, and the process may fall on the developers in a smaller organization that doesn't have a designated QA team. If you face a question about the QA process, the interviewer may be trying to determine whether you would be willing and able to take on testing and bug fixing as part of the role.

96,161 software developer interview questions shared by candidates

Suppose there is a rectangular map where you can only travel up or right to go from a start location in the bottom left corner to the top right corner, and each move is discrete. Write a program that prints all possible solutions to get from the start to finish.
avatar

Financial Software Developer Intern

Interviewed at Bloomberg

4★
Mar 5, 2010

Suppose there is a rectangular map where you can only travel up or right to go from a start location in the bottom left corner to the top right corner, and each move is discrete. Write a program that prints all possible solutions to get from the start to finish.

I have a log that consists of more than 100 million lines. Each line is just a data about user login, login time, etc. I want to sort them based on user login, and then if there is a tie based on login time, etc. However, I have limited memory, so don't think of storing all of them in an array. The memory can only hold n data where n is much smaller than 100 millions. You can access the disk though although it is much slower. How will you do it so that it is as efficient as possible?
avatar

Software Developer

Interviewed at Epic

3.3★
Aug 29, 2009

I have a log that consists of more than 100 million lines. Each line is just a data about user login, login time, etc. I want to sort them based on user login, and then if there is a tie based on login time, etc. However, I have limited memory, so don't think of storing all of them in an array. The memory can only hold n data where n is much smaller than 100 millions. You can access the disk though although it is much slower. How will you do it so that it is as efficient as possible?

We have a log file, can grow pretty big. Each line is a trace-log, and the first field is the RequestID. We need to scan the file, and print all the logs for requests which resulted in error .. 001 <timestamp> BEGIN 001 <timestamp> fetched from db 001 <timestamp> some processing .. 002 <timestamp> BEGIN .. 002 <timestamp> fetched from db 001 <timestamp> returned success 003 <timestamp> BEGIN 001 <timestamp> END 003 <timestamp> some work 002 <timestamp> ERROR 003 <timestamp> some other work
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Software Developer

Interviewed at Booking.com

4.1★
Mar 30, 2017

We have a log file, can grow pretty big. Each line is a trace-log, and the first field is the RequestID. We need to scan the file, and print all the logs for requests which resulted in error .. 001 <timestamp> BEGIN 001 <timestamp> fetched from db 001 <timestamp> some processing .. 002 <timestamp> BEGIN .. 002 <timestamp> fetched from db 001 <timestamp> returned success 003 <timestamp> BEGIN 001 <timestamp> END 003 <timestamp> some work 002 <timestamp> ERROR 003 <timestamp> some other work

how would you design how a cellphone implements its contact list when you press a certain letter. For example, If you press M it will tell you all the names starting with M. then if you press MI it will tell you all names starting from MI and so forth....
avatar

Amazon Software Developer Intern

Interviewed at Amazon

3.5★
Apr 1, 2011

how would you design how a cellphone implements its contact list when you press a certain letter. For example, If you press M it will tell you all the names starting with M. then if you press MI it will tell you all names starting from MI and so forth....

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