Software Developer Interviews

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

Given 10 cups to locate the bottle poisoned wine from a batch of normal ones, you can make any mixture of them and test your mixtures by mouses. However the density of poison in the mixture, the testing mouse will certainly die. And you must give all the mixtures of the 10 cups before the test. There is only one poisoned bottle. How many bottles of wine you can test at most?
avatar

Financial Software Developer

Interviewed at Bloomberg

4
Dec 8, 2012

Given 10 cups to locate the bottle poisoned wine from a batch of normal ones, you can make any mixture of them and test your mixtures by mouses. However the density of poison in the mixture, the testing mouse will certainly die. And you must give all the mixtures of the 10 cups before the test. There is only one poisoned bottle. How many bottles of wine you can test at most?

Given any number of arrays containing numbers, write a function which finds the numbers that appear in exactly two arrays. arrays = [ [6, 2, 2, 0, 4], [5, 0, 2, 6, 7, 1], [6, 7, 9, 9], ] find_in_two(arrays) should return [2, 0, 7]
avatar

Software Developer

Interviewed at Booking.com

4.1
Jun 20, 2016

Given any number of arrays containing numbers, write a function which finds the numbers that appear in exactly two arrays. arrays = [ [6, 2, 2, 0, 4], [5, 0, 2, 6, 7, 1], [6, 7, 9, 9], ] find_in_two(arrays) should return [2, 0, 7]

input log = [ { 'user': 'A', 'page': 1}, { 'user': 'B', 'page': 5}, { 'user': 'A', 'page': 2}, { 'user': 'A', 'page': 1}, { 'user': 'B', 'page': 2}, { 'user': 'C', 'page': 7}, { 'user': 'C', 'page': 3}, { 'user': 'A', 'page': 3}, { 'user': 'C', 'page': 1}, ] please implement discover_site_map(log) discover_site_map returns a representation of the links between pages, using whatever data structure you think is suitable: 1 -> 2, 3 2 -> 1 3 -> 1 5 -> 2 7 -> 3
avatar

Software Developer

Interviewed at Booking.com

4.1
Jun 20, 2016

input log = [ { 'user': 'A', 'page': 1}, { 'user': 'B', 'page': 5}, { 'user': 'A', 'page': 2}, { 'user': 'A', 'page': 1}, { 'user': 'B', 'page': 2}, { 'user': 'C', 'page': 7}, { 'user': 'C', 'page': 3}, { 'user': 'A', 'page': 3}, { 'user': 'C', 'page': 1}, ] please implement discover_site_map(log) discover_site_map returns a representation of the links between pages, using whatever data structure you think is suitable: 1 -> 2, 3 2 -> 1 3 -> 1 5 -> 2 7 -> 3

Russian roulette brain teaser: Interviewer takes an imaginary revolver gun with 6 empty chambers, and loads 2 adjacent chambers with bullets. Interviewer has the first turn: rolls the cylinder, puts it to his head, and pulls the trigger... no shot. The lucky interviewer passes the gun to you and gives you two options before you put the gun to your head and pull the trigger: (a) to roll the cylinder again or (b) not to roll the cylinder Which option would you choose?
avatar

Software Developer

Interviewed at OpenBet

3.1
Jun 23, 2010

Russian roulette brain teaser: Interviewer takes an imaginary revolver gun with 6 empty chambers, and loads 2 adjacent chambers with bullets. Interviewer has the first turn: rolls the cylinder, puts it to his head, and pulls the trigger... no shot. The lucky interviewer passes the gun to you and gives you two options before you put the gun to your head and pull the trigger: (a) to roll the cylinder again or (b) not to roll the cylinder Which option would you choose?

Populate an array of numbers from 1 to N (inclusive). Given two numbers, p and q , if a number in the array is divisible by p print OUT, if a number is divisible by q print THINK. If number is divisible by both p and q, print OUTTHINK. Otherwise, print the number.
avatar

Entry-Level Software Developer

Interviewed at IBM

3.9
Oct 2, 2017

Populate an array of numbers from 1 to N (inclusive). Given two numbers, p and q , if a number in the array is divisible by p print OUT, if a number is divisible by q print THINK. If number is divisible by both p and q, print OUTTHINK. Otherwise, print the number.

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