Junior Developer Interview Questions (That Could Get You in Trouble)

The following blog post is for you, junior developers! You may be wondering what to expect in a technical interview and how to prepare. I've compiled 33 of the most common software developer interview questions.
by Billy Stone » Remote Work Nerd » 
last updated on November 13th
There are many interview questions that a software developer could be asked. It is important to prepare for the interview by matching your knowledge and qualifications with the job description so you know how to properly represent yourself.

In addition, practicing how you will answer certain development and programming questions can help you perform better in your interview. Ready? Let's start!
Table of Contents

Junior Developer Interview Questions Introduction

So you sent out your remote work cover letter and now you're invited to a job interview.

You might be worried about what questions might come up? Don't worry, we got this.

You may have read horror stories about how difficult it is to solve really hard computer science problems in an interview.

These interviews don't revolve around only one factor: passion and attitude (though those two things will help)! The main focus instead lies in demonstrating your knowledge about technology and your personality: for remote workers aka. remote worker skills.

In addition, practicing how you will answer certain development and programming questions can help you perform better in your interview.

Junior Developer walking behind his table

Q: What is your favorite programming language and why?

Possible Answer: My favorite programming language is JavaScript (check our article 69 Java Senior Developer Interview Questions) because it's the first programming language I ever learned. What I like the most is the fact that JavaScript is everywhere. It's not just used on the web but also with all kinds of devices like mobile phones, game consoles, and even cars!

In my opinion, there is not much you can't create with the help of JavaScript. It's just a matter of knowing how to use it!

As an example, I once did an eCommerce project in WordPress and created a plugin that lets customers create their vouchers. This was mainly done with the help of JavaScript.

Q: How do you debug a program when the error message isn't helpful?

Possible Answer: There are many different ways to debug a program. What's important is that you can identify the source of your problem so you know where to start looking for it!

I always try to remove parts of my code until I have simplified it enough to be able, with confidence, to say in which part of my code the bug is hiding. Then I just find the problem and fix it!

Q: What are the advantages of using a debugger?

Possible Answer: The biggest advantage of using a debugger is that it's much faster than running your code step by step and checking whether everything went as expected. What I like about debugging my code is that you can set breakpoints and pause the program at a certain line of code.

Q: What is the difference between a Thread and a Process in Java?

Possible Answer: A thread represents an independent sequence of instructions. It has its call stack, program counter, user stack, privilege level, and so on. A process can contain many threads which all share resources like memory and filehandle, but at any given time only one of these threads is being executed.

Q: What's your least favorite thing about working as a developer?

Possible Answer: One of the things I dislike the most is when you have to fix a bug in an existing codebase. It can be challenging because it's not always easy to understand how everything works and why something was implemented like this or that way!

Q: Why did you decide to pursue computer science instead of something else?

Possible Answer: I decided to study computer science because it combines so many different aspects that I truly enjoy. For example, I love working with people and I also like math! But what makes me tick is being able to work on new ideas every day – something you can't do in other professions!

As an example, I once worked on a project where we had to create an app for blind people and help them navigate their surroundings. It was really challenging but so exciting!

Q: What is your least favorite language to use and why?

Possible Answer: My least favorite language is probably C++. Most of the time, I only use it at work and not for private projects because it's just too difficult to write good code with this language! I also think that C++ has a really bad reputation and I think that's because of all the bugs you need to be careful about when writing code in it!

Q: What are the most difficult problems that you've solved in a programming language?

Possible Answer: I think that one of the most difficult problems I've ever solved was rewriting a program so it would work properly in another language. We had to rewrite this entire software from Java into C++ and it wasn't easy because we didn't have enough time back then! The other challenge was making sure everything worked correctly after we finished, which can be really hard when you're not used to working with this language.

Q: Do you prefer working on small or large projects?

Possible Answer: I think I prefer working on small projects because it's a lot easier to communicate with other people and coordinate your work. For me, the biggest benefit of working on small projects is that it's easier to see your progress! But I once worked on a really big project and I think it was cool to see how people from different fields of expertise came together and created something great.

Q: Can you describe what it's like to be a programmer?

Possible Answer: It's cool to be a programmer! I think that the word "programmer" is something people don't truly understand – they think it only means someone who sits in front of a computer and always does one thing. But, what they don't know is that programmers are also creative – we create new things every day – and have so many opportunities to do things that interest them. So, if you're a person who likes being creative and solving problems – it's the perfect job for you!

Q: What is your second favorite programming language and why?

Possible Answer: My second favorite programming language is Python. I think it's a creative and easy-to-learn language because the code you write in it looks almost like English! But, what I also love about this language is that there are so many different applications for it – from web development to machine learning!

As an example, I once did a project with Python and it was great to see how much I could do with it and how flexible it was. The other reason I like Python is that it's really easy to debug – you just need to see your code fail once and then fix the bug!

Q: What are the pros and cons of using a SQL database vs an ORM?

Possible Answer: The biggest pro of using a SQL database is that it's well-suited for storing data. But, you need to understand how everything works together because if there are any errors in your query – the whole program will crash!

The other thing about this type of database is that they're not very flexible because you have to use exactly what the database is designed for. For example, you can't just add some new data fields to your tables – it's really hard!

Q: What is the difference between a variable and a constant?

Possible Answer: A variable is something that changes – like the name of a user or how much money they have. But, constants are unchanging values like numbers and letters!

Q: How to tell if you have an out-of-bounds error in your code?

Possible Answer: An out-of-bounds error happens when you try to access a variable that doesn't exist – for example, if your user ID is 42 and not 43.

The easiest way I know how to tell if there's an issue with my code is by using the debugger available in most programming languages! It allows me to look at all the variables in my program and see if they're getting changed or not.

Q: What does it mean to "go-to" something?

Possible Answer: Goto is an instruction that tells the computer to jump from one part of your code to another. It was really popular in programming languages like C and Java, but it's not used anymore because people think that using goto is bad practice!

Q: The syntax for declaring a function or subroutine?

Possible Answer: The syntax for declaring a function is to type "function name (parameters)" and then define what the code does in curly brackets. The other thing you need to know about functions is that they always return something – even if it's just an empty string or number! That means, when your program runs into the end of a function, it will go back to where it came from.

Q: What is the order of precedence for operators, from highest to lowest?

Possible Answer: If you have an expression with multiple operators, they are executed in the following order: Parentheses Exponentiation Multiplication and Division Addition and Subtraction

Q: Explain how to use recursion with an example problem statement?

Possible Answer: Recursion is a really hard term to explain – but basically, it's when you have a function that calls itself. So for example, if I had the code "int foo()" and then called this from another method in my program – it would cause an infinite loop!

Q: Do you have any experience with coding languages other than Java or C++?

Possible Answer: Yes, I have experience coding in Ruby and Python. The reason why I like these languages is that they're easy to read and intuitive – you don't need a lot of time learning them! For example, to find the average of a list in Python, you just type "average = sum(list) / len (list)"!

Junior developer interview questions about personality & soft-skills

As a junior developer, it's important to be able to answer questions about your experience and qualifications. The first step in preparation should always start with understanding the job posting details. So that when asked "tell me about yourself", it won't come out as stuttering.

Did you know that practicing how to answer soft-skill and personality questions in advance can help your interview performance? It's true! Thankfully, there are many websites out there where people post common interview questions. Use these resources before an upcoming job listing so it won't feel like something new came up all of sudden when interviewing with this company or other organizations - get ready by reviewing what they might ask beforehand!

Q: Why do you want to work with this company specifically?

Possible Answer: When I was a kid, I used to read a lot of comics. One of my favorite characters is Spider-Man and a big part of the reason why was because he spent his whole time fighting for justice! For me, working at this company would feel like being a real superhero – helping people every day while also getting paid for it! So, if you hire me, I promise I will give my best to contribute as much as possible and do everything in my power to help people!

Q: How would your friends and family describe what it's like when they see you as an engineer/programmer/developer?

Possible Answer: I think they would say that I'm a nice and easy-going person. But, when it comes to my work – if something needs doing, I get straight down to business! They know what kind of hours programmers work so they don't mind me sitting in front of the computer late at night or spending my weekends writing code.

Q: Describe a time when you failed at something or felt like a failure?

Possible Answer:

Q: What are some of the challenges that come with being a woman in tech?

Yes, this one's especially for you – you lovely dev ladies out there!

Possible Answer: I think the biggest challenge for women in tech is that we feel like we need to constantly fight against stereotypes and prejudices. This means, on one hand, it's important for us not to give up but at the same time, we should make sure to not get stuck with this idea of fighting all the time either! But, there are also a lot of positive sides to being a woman in tech. For example, I think we are often more organized and better at finding a solution for problems!

Q: What are your weaknesses?

Possible Answer: My weakness is that I tend to get too excited about things. When I find something that interests me, it's hard for me to let go of the idea! This has also made me very ambitious – if there is a goal or challenge in front of me, you can be sure that this will motivate and inspire me to work towards achieving it!

Q: How would you rate yourself on a scale of 1-10 as an employee?

Possible Answer: I rate myself as a nine because I know that no matter the task, it's always better if you prepare for what comes next! So, firstly I like to read up on everything related to my work and then plan step-by-step exactly how this job will be done. Once all of the groundwork is laid out – there should not be any reason why things will go wrong!

Q: What is the best way to motivate people in a team setting?

Possible Answer: It's important to be a good role model. If someone sees that you are putting in 100% effort, they will understand it is worth investing their time as well! So the best way to motivate people is by showing them how much you care about what you do. This means always being on time with deadlines and never missing any meetings or calls!

Q: What is your favorite book and why?

Possible Answer: I like to read a lot of different books but my all-time favorite has got to be 'The Fellowship of the Ring' by J. R. R Tolkien! It's such an epic story that goes on for ages – there are so many intriguing characters and it's just impossible to stop reading!

Q: When have you had conflicts with other employees at work?

Possible Answer: Not really. But I think the best way to avoid conflicts is by being honest and direct with one another. Everyone must act respectfully but it doesn't work if people are afraid of hurting each other's feelings either! So, whenever there has been a conflict at my previous jobs, this was because someone had tried to be too nice instead of just telling it like it is and this will only make things worse!

Q: Is there a certain type of animal that you don't like?

Possible Answer: I think it's probably snakes because they are just so creepy!

Q: If you had to choose between being an astronaut or a marine biologist, which would you choose and why?

Possible Answer: I would choose to be an astronaut because I think it's the most incredible thing you can do! We all know how dangerous space is but just imagine being able to explore new planets, learn about different species and their habitats – who knows what we might find out there?!

Q: How many hours per day do you spend at work/school?

Possible Answer: I spend about eight hours a day at work and then some time outside of this as well. I like to try and switch off my mind from the job by watching TV series or playing video games with friends, for example!

Q: What is your favorite movie and why?

Possible Answer: I love watching movies, to be honest! But, I think my favorite one is "The Hunger Games" because it's so exciting! I like to see someone becoming the hero and fighting for justice. For me, it has a lot of parallels to the real world and it makes me feel like I could do anything!

Q: What is one thing you wish your manager understood about what it's like to work in this position?

Possible Answer: The one thing I wish my manager understood is that sometimes, it's really important to just step back and not get so caught up in all of the details. It can be easy for them to forget how stressful things are when they're sitting at their computer writing code while we, on the other hand, need breaks! Sometimes a quick ten-minute walk around the block is all it takes for me to be ready and able to focus again.

Conclusion

Having an interview as a junior developer, there are plenty of interview questions that could trip you up. Interviewers will want to know about your previous work experience and how well you can problem-solve on the spot.

There are also some more personal questions they might ask like what is your favorite book? What would be one thing you wish your manager knew?

The most important takeaway from this article is that preparation is key! If someone has prepared for their interview with junior developers then it should be smooth sailing all around.