Let's learn about Interview Questions via these 122 free blog posts. They are ordered by HackerNoon reader engagement data. Visit the Learn Repo or LearnRepo.com to find the most read blog posts about any technology.
Interview questions are specific queries asked during a job interview to assess a candidate's knowledge, skills, experience, and suitability for a role. These questions are a fundamental component of the hiring process, designed to reveal a candidate's capabilities and problem-solving approach.
1. Java Algorithms: Merge k Sorted Lists (LeetCode)
An easy approach to the hard leetcode problem Merge k Sorted Lists from that many people using Java Algorithms will need to learn in order to be effective.
2. 160+ Data Science Interview Questions
A typical interview process for a data science position includes multiple rounds. Often, one of such rounds covers theoretical concepts, where the goal is to determine if the candidate knows the fundamentals of machine learning.
3. Why Interviewing As A Developer Is Complete Nonsense
Learn what a developer goes through on every job search
4. How I Relocated to the US and Found a Job at Roku
This post and the creation of the telegram channel were motivated by the lack of detailed information about interviews for Front-End engineers in the USA.
5. Understanding the Sliding Window Pattern: Efficient Utilization Through Examples
The article explores the Sliding Window pattern's efficient application through illustrative examples.
6. Technical Data Science Interview Questions: SQL and Coding
A data science interview consists of multiple rounds. One of such rounds involves theoretical questions, which we covered previously in 160+ Data Science Interview Questions.
7. Product Sense Interview: How to Prepare and Succeed
The Product Sense Interview or Product Design Interview is an important stage in the interview process for a product manager role.
8. Top 5 React Interview Questions in 2022
ReactJS is the most popular choice, and this lesson on how to answer ReactJS interview questions will help you get the job.
9. Java Algorithms: First Missing Positive (LeetCode)
The First Missing Positive problem is an algorithm problem that requires finding the smallest positive integer that is not present in a given unsorted array of
10. I Led Dozens of Meta System Design Interviews, Here's The Right Way to Prep
A FAANG software engineer's guide to acing the Meta system design interview. Learn to crack 9 meta system design interview questions.
11. Landing A Job At Twitter As A Software Engineer [How I Did It]
This is the story of how I landed a job at Twitter as a full-time software engineer, what I went through, how I prepared and why I finally decided to join the company.
12. 3 Practical Tasks for Your Next React Interview
Here are 3 React tasks to check your coding skills, way of thinking, and ability to create good understandable code.
13. Data Structures and Algorithms: 20 Problem-Solving Techniques
This is the article I wish I had read when I started coding. I will dive deep into 20 problem-solving techniques that you must know to excel at your next interview.
14. If The Interviewer Says "Do You Have Any Questions for Me?” Ask Questions That Matter
Some questions that don't just show you are worth hiring, but also show whether the company is worth hiring into.
15. A Look at the Top Questions for a System Design Interview at Facebook
Facebook System Design Interview; Design Facebook NewsFeed; Design Status Search; Design Live Commenting; Design Facebook Messenger / WhatsApp; Design Instagram
16. How to Ace Coding Interviews - Advice from a Former Amazon Dev
I must have been in almost a hundred coding interviews. Sometimes as an interviewee and sometimes as an interviewer. I have struggled in front of the whiteboard and I have seen many candidates struggle.
17. Top 5 Interview Questions For Junior React Developers in 2022.
Junior React developers trying to get a job are likely to come across these five interview questions when trying to get a job in the industry as a grad.
18. My 45-min Product Design Interview Experience
What is Product Design interview, how it differs from system design interview, and how to pass it successfully.
19. 30 BI Engineering Interview Questions That Actually Matter in the AI Era
The BI interview hasn't caught up with the job. Here are 30 questions that reflect what it actually means to be a BI engineer in 2026.
20. How I Approached Machine Learning Interviews at FAANGs as an ML Engineer
Cracking a Machine learning interview at companies like Facebook, Google, Netflix, Snap etc. really comes down to nailing few patterns that FAANGs look for.
21. How to Prepare for the Facebook Behavioral Interview
Facebook Behavioral Interviews; Tell Me About A Time You Had To Manage Conflicting Priorities; Evaluation Criteria, Response Framework, and Tips & Tricks
22. BI Analyst Interview Questions And Answers: 2020 Edition
Why you should prepare for BI analyst interview questions?
23. STAR: The Best Framework for Answering Behavioral Questions in Tech Interviews
The STAR Method is one of the most well-known interview frameworks out there that are perfect for answering behavioral interview questions.
24. Startup Interview: Questions for Nominees of Startups of the Year Hosted by HackerNoon
Startups of the Year, hosted by HackerNoon, honors over 40k startups all over the world in cities with 100k+ population. Visit startups.hackernoon.com to vote.
25. Web Developer Job Interview Preparation: 25 Questions, Prompts, and Coding Assignments
You’ve set the alarm for 2:45pm.
26. Top 40+ Data Science Product Interview Questions
Find the top 40+ product interview questions you must prepare for your next data science interview.
27. Top 10 Interview Questions on Spring Boot
In this article, we will discuss some important 10 interview questions in Spring Boot. These the entire question is trending with building strong java career in the job market.
28. 5 Useful Tips from My Amazon SDE II Interview Experience
Amazon SDEII coding and system design interview experience from initial recruiter call to online assessment and onsite rounds.
29. 23 Common Data Science Interview Questions for Beginners
In 2012, Harvard Business Review called data scientists the sexiest job of the 21st century. However, correctly answering data science interview questions to get a job as a data scientist is very tricky.
30. 10 Essential Javascript Questions
JavaScript is a client-side programming language. It is used in over 90% of the websites in the world. It is one of the most used programming languages in the world. So, today we will be talking about the 10 most
asked questions about JavaScript.
31. Common MS Excel Questions to Help you Excel in a Data Analyst Job Interview
EXCEL Interview Questions for Data Analysts
32. Junior Interviews Will Never Change
The author compares the interview process in 2012 and 2020s. You will know how it happens from companies side. What you have to get an offer.
33. How to Solve Product Design Questions|The Great PM Interview
A comprehensive guide to Product Manager Interview questions asked in top Product companies (Facebook, Google, Whatsapp, Instagram). How to design a product ?
34. How to Solve 6 Dynamic Programming Problems In a Systematic Way
In this article, I gave you an introduction to Dynamic Programming with several examples. Here I will solve 6 harder Dynamic Programming problems to show you how to approach them.
35. Top Facebook Behavioral Interview Questions - Part 1
Facebook Behavioral Interviews: How they cover the topics of leadership, time management, ability to deal with disagreement while assessing the right fit.
36. 35 In-depth Scrum Master Interview Questions and Answers [2020]
From the desk of a brilliant weirdo #1:
37. 10 JavaScript Interview Questions and Answers to Help you Land Your Next Role
10 JavaScript questions for experienced developers that can help you crack your next interview.
38. Running Great Tech Interviews: The Art of the Follow-up Question
This article gives sample software engineering interview questions, as well as my approach to conducting efficient interviews.
39. Coding Interview Prep: Let's Test Your CSS
A brief test of some CSS skills to help prospecting developers prepare for interviews or just to keep their skills sharp.
40. 5 Data Science Interview Questions via Facebook, Twitch, and Postmates
There are data science interview questions that I’ve collected in the first few months of 2021 from Facebook, Twitch, Postmates, and more.
41. A Better Way to Pass Technical Interviews
To LeetCode or not to LeetCode? What if you don't want to practice 100s of coding questions before your next coding interview?
42. The Best Interview Question is “Tell me how to get to your favorite restaurant”
Interviews are hard enough without turning them into a "name the secret word" quiz show. This surprisingly simple question tells you everything you need to know
43. Javascript Promise Methods With Polyfill Example: A Cheat Sheet for Developers
44. Breaking The Loop Of Trust While Dealing With Real-World-Data Between The Patients And Researchers
In this interview, we spoke to the company’s Co-CEO and Co-Founder, Ashwin Rathod about its innovation.
45. Finding Product of Array Except Self
Sergei Golitsyn. Find the product of all the elements of nums except nums[i].
The product of any prefix or suffix of nums is guaranteed to fit in a 32-bit int
46. Top 5 Interview Questions for Beginner React Developers
Here are 5 common interview questions you might hear in an interview.
47. Top 15 Basic DevOps Interview Questions: 2021 Edition
If you are looking for DevOps Interview Questions and answers, you are on the right page and below are some Real-time DevOps Interview Questions common in 2020. Go through all of them to crack your next interview.
48. What Tech Newbies Need to Know According to Industry Insiders
When junior or aspiring developers prepare for tech interviews, they tend to focus only on the technical part, which is of course very important.
49. HackerNoon Contributor Bob Wright on Coding, Writing, and More
A brief interview with a HackerNoon contributor
50. Top Apache Kafka® Interview Questions for Juniors In 2023
Prep for an Apache Kafka interview by reading this questions! Aimed at juniors.
51. Startups of the Year 2023: Meet HarperDB - A Database and Application Development Platform
HarperDB is a database and application development platform that is focused on performance and ease of use.
52. What To Prepare For A Software Interview
Both interviewees and interviewers can benefit from understanding what to prepare for a software interview and how best to learn about their counterpart.
53. Understanding and Applying the Knuth-Morris-Pratt Algorithm: From String Matching to Stream Search
An article explaining the Knuth-Morris-Pratt Algorithm.
54. A Simple Visual Chart to Help You Understand 'This' in Javascript
Learn how to easily find the value of this in JavaScript and use it more effectively.
55. House Robber
You need to solve this: given an integer array nums representing the amount of money of each house, return the maximum amount of money you can rob tonight.
56. Solving the Single Number and Climbing Stairs Coding Challenge
author: Sergei Golitsyn
element appears twice except for one. Find that single one.
how many distinct ways can you climb to the top?
57. Meet the Writer: Lisa Gibbons, Web3 Connoisseur, Forager, and Writer of Lines On the Edge
Lisa is a writer, a struggling poet, a keen forager, and a Web3 enthusiast.
58. Examining the Dynamics of Blockchain Interoperability with Layer One X's Devs
We spoke to its developers about the vision for Layer One X
59. How To Prepare For A Technical Interview
As an engineer you will face several controversial situations when looking for a new job. I've been there too and now I'm sharing what worked for me.
60. Implement Queue using Stacks
author: Sergei Golitsyn
Implement a first in first out (FIFO) queue using only two stacks
61. Please Stop Using Stupid Puzzles in Job Interviews
“Sam’s uncle’s mother’s brother’s sister’s daughter’s grandfather’s name is John. How are Sam and John related?” We need you to stop.
62. Compilation of the Most Common JavaScript Interview Questions
Comprehensive list of JavaScript interview questions from basic to advanced, to help you prepare for technical interviews and boost your coding skills.
63. NFTs Are Looking To Make A Comeback. What Does The Market Need?
What factors are necessary for NFTs to make a successful comeback?
64. Can Superheroes And Comics Survive In Web3?
Today, some of the biggest rock stars are fans of comic books. It’s now the “cool” thing to be a comic book fan, and even adults are fine with having favorites
65. How Digital Communities Can Get First-Mover Advantage with Web3
Over the past year or two, we’ve seen a lot of talk about Web3 and why it’s a new frontier of the internet that has everyone excited.
66. Implementing Stack Using Queue
Sergei Golitsyn. Implement a last-in-first-out (LIFO) stack using only two queues. The implemented stack should support all the functions of a normal stack.
67. Find the Celebrity
A celebrity is known to everyone, but he does not know anyone at the party.
68. HackerNoon Contributor Denisa Ganea on HackerNoon, Human Existence, and Everything in Between
I like to ask for opinions and feedback from people with more professional experience in the specific niche I’m researching (eg. for my last article I had very
69. Answering The Most Common Questions About Swift
Swift is a general-purpose programming language developed by Apple Inc. It is a powerful language developed for iOS, iPadOS, macOS, watchOS, tvOS, Linux, and z/OS. Swift is one of the popular languages and has a huge scope if you want to develop apps for Apple products. So, today we will be checking out the 11 most asked Swift programming questions.
70. Let's Demystify Hoisting for Javascript Developers
Struggled with JS hoisting in interviews? How let, var, const and function hoist differently? This article explains the concept and makes it easy to understand.
71. Andre, Founder of Tutti Frutti Women, on the Tech Industry and More
Do women have a seat at the table in an ICT Corporation? How can tech companies and public sector reduce the gender gap in tech and not only?
72. Why Blockchains Need To Invest In Speed Heading Into Web3
By investing in speed, blockchains can lower barriers to entry, attract a broader user base, and foster a vibrant web3 ecosystem.
73. How to Prepare for a Product Manager Interview [Part 3-From Zero to Product Manager]
74. 6 Common HTML and CSS Interview Question and Answers
In this article, I will present some of the most frequent questions and answers made by interviewers. There will be questions about HTML & CSS. If you like reading, go ahead. If you don’t, you can still watch myself answering the same questions in this YouTube playlist I prepared.
75. How to Successfully Interview Developers in 2022
Here is the exact process I’ve used to successfully interview software developers.
76. How Web3 is Reshaping The Landscape Of Open-Source Development
In this interview, we spoke to Max Howell - creator of Homebrew as well as the founder of Tea & pkgx - to understand his vision for the platform and its future.
77. 93 Stories To Learn About Interview Questions
Learn everything you need to know about Interview Questions via these 93 free HackerNoon stories.
78. Hiring an Engineer: 7 Different Types of Engineering Interviews
These are 7 Different Types of Engineering interviews that engineers may come when searching for jobs, including those used by large companies like Google.
79. 3 Questions to Ask When Hiring Your Startup's First Designer
My first job as a UX designer was fresh out of grad school at a small startup with six people. It wasn't a great fit. I'd come from the world of print graphic design and had never designed a real-world digital software product. Even though I was enthusiastic, I had no experience to call on to know how to reconcile UX tradeoffs or convince the team why one design decision was better than another.
80. Problem Solving Questions During PM Interview
Problem-solving question is the most frequent and recurring question asked PM interview. Here's a way on how shall one approach it.
81. The Noonification: From the Ocean’s Depths (9/17/2022)
9/17/2022: Top 5 stories on the Hackernoon homepage!
82. 2022 Noonies Programming Nominee Roy Derks on GraphQL, React, and More
I’m Roy Derks! A tech speaker, writer and software developer from the Netherlands! I’ve been nominated for the categories below and if you've enjoyed anything
83. The FAQs of RuboCup
RuboCop is a Ruby static code analyzer and code formatter which helps to track errors easily and fix minor code issues during the development process saving your time. It has many advantages and you can learn more about RuboCop on https://docs.rubocop.org/en/stable/.
84. Top 5 Artificial Intelligence Questions Asked During Job Interviews
The artificial intelligence (AI) field has been snowballing in the past two decades. To meet its exponential growth, the industry demand for individuals with related tech skills has doubled. According to LinkedIn, the need for experts in AI and machine learning (ML) grew by 74% annually in the past four years. Similarly, Indeed reported that the number of companies seeking talents with AI skills increased by 119% from 2018 to 2019.
85. The Heat Index Of Questions About PHP
PHP (Hypertext Pre-processor) is a popular server-side scripting language mainly used for developing websites and web applications. It can be used to build either static or dynamic websites. It is very simple and easy to learn. So, today we will be checking out the 11 most frequently asked questions about PHP.
86. 10 Ways To Effectively Sell Yourself During A Job Interview
Get the job you want as markets are soaring to all new heights. The multitude of MNCs is overwhelming therefore there is the demand for employees and they are using best possible human resources in order to ensure their sustainability and growth in the competitive environment. Every employer requires the most desirable skills in an employee.
87. HackerNoon Contributor Celine “Oibiee” Aju on Tech, HackerNoon, and the Arts
As a tech writer, I believe that the most exciting technology of the present is ED-TECH because it gives us the opportunity to move from the assembly line appro
88. How Can Decentralized Storage Empower Content-Driven Apps?
In the evolving landscape of digital content, the storage and delivery of data have become pivotal aspects of user experience and application functionality.
89. How to Conduct a Job Interview
Stories of job interviews at large companies, ranging from unpleasant to weird or horrid, are very popular on dedicated forums.
90. An Interview With Pawnfi Founder Wesley Kayne: The Converging Lines Between NFTs & DeFi
Pawnfi Founder Wesley Kayne discusses NFT, DeFi, and the rise of Web3, along with the long-term viability of current Blockchain technologies in this interview.
91. Wait, People Cheat in Technical Interviews?
Can you cheat in a technical interview? This approach for hiring tuned over decades is how you moneyball hiring & work with great people.
92. Meet the Writer: Interview Questions for Hacker Noon Top Contributors
Interview Questions for HackerNoon's Top Contributing Writers
93. Solving DeFi’s Complexity Problem As Adoption Stalls
To unlock DeFi's full potential and drive widespread adoption, it's crucial to address the usability and accessibility challenges that hinder its growth.
94. Ninja Warriors' Jason Chan: The Move-To-Earn Trend Is Coming For Traditional Combat Games Too
We spoke to Jason Chan, the game’s founder and developer, about his plans for the future and their overview of the industry.
95. So, Do You Have Any Questions For Us?
OR: How to ask the right questions in order to find your dream company.
96. A Step-By-Step Guide on How to Hire Engineering Managers
A complete guide to hiring engineering managers, including how to identify what to interview for. Includes a full interview plan with interview questions.
97. Learning the art of Informational Interviews : Best Practices
How to prepare and execute informational interviews to land a job faster.
98. HackerNoon Contributor Nikita Vasilev on Programming, Python, and More
I’m Nikita Vasilev and I’m the Senior Big Data Engineer at Grid Dynamics. I’ve been nominated for the categories below.
99. How To Find A Great Developer on Upwork
My name is Eduard and I’m the CTO at Polecat. Sometimes I help my friends to find developers on Upwork. Below, I describe how I recently searched for a React developer on Upwork.
100. Web3 Platforms Need Customers - How Loyalty Programs Can Help
Web3 is still very much in its infancy, and the general consensus is that we might have to wait a few years to see it really reach millions of people.
101. Prepare for Your Selenium Interview With These 10 Questions
If you're preparing Selenium interview questions, the following tricky questions will be really helpful.
102. Traditional Tokenomics Is Broken. What Does The Future Hold?
It appears that it is time to innovate around how we see tokenomics on a general level.
103. 2021 Noonies Nominee Interview with Sarrah Pitaliya
Who is she and what's behind her passion for technical writing?
104. 3 Outside-the-box Questions to Ask During a Cybersecurity Interview
When interviewing, I initially used the popular lists you find via Google. This led to asking questions that candidates that made selection even more difficult.
105. Top Ultimate List of 50 LLMs Interview Question • Master LLMs, Crack Your Next Interview
Prepare to ace your next interview with the top 50 LLM interview questions. Master key concepts, boost your confidence, and land your dream job in AI.
106. Blockchain Base Layers & The Need For DeFi Adoption
While DeFi has been a revolution, it has also faced the same adoption issue as traditional crypto.
107. My Favorite Kind Of Coding Interview Exercise
How to prepare for a job interview as a programmer looking for a job that needs coding, how these simple exercises will help you prepare fully for it.
108. Build Your Own Polyfills for Call, Apply, and Bind in JavaScript
A polyfill is a piece of code (usually JavaScript) that adds functionality to older browsers.
109. Meet the Writer: Bakir Djulich, Marketing Manager and Gaming Specialist
Bakir Djulich is a marketing manager, a gaming specialist, and a HackerNoon writer. Find out more about him here!
110. Beyond APIs: What It Really Takes to Build AI-Native Products
To understand what building truly AI-native products looks like, I spoke with Yose Rizal, a technology builder with over 15 years of experience
111. Q&A With Mauro Battellini, Startup PR Dude at Black Unicorn PR
In conversation with Mauro Battellini, Startup PR Dude at Black Unicorn PR.
112. A Letter to Tech Recruiters
As a software engineer with more than 15 years of experience, a LinkedIn and Stackoverflow profile, I got my fair share of interaction with recruiters. Some were spot-on with the relaxed to the point attitude that gets an engineer’s attention.
113. Nailing Your Job Interview: Preparation, Research, and Looking Out For Your Best Interests
Ace your job interview: Prepare questions, research the company, negotiate salary, and make informed career decisions.
114. How To Hire The Right Employee: 7 Steps To Take
The article brings to you 7 phases of the recruitment process that range from analyzing an organization’s needs to finally hiring the candidate.
115. How to Answer This One Interview Question That (Might) Lose You The Job
Unlike the "hiring superstitions" I recently shared, there's one question that can single-handedly ruin your chances of getting hired.
116. Startup Interview with UB Ciminieri, interviewIA CMO
interviewIA is a minority and Colorado-founded technology startup helping interviewers hire better with less bias using our interview collaboration platform.
117. How Developers Can Cultivate and Evaluate Problem Solving Skills
Why we should all shift our gaze from the tools we have to the nature of problems and to their solutions.
118. Meet the Writer: HackerNoon Contributor Misha Kharytonchyk - Lead iOS Developer
I'm Misha Kharytonchyk, a Lead iOS developer with hardworking and enjoyable years of experience in the field.
119. Uncovering Motivation in Engineering: an Interview with a Technical Recruiter
Eric Gong talks about how to uncover a candidate's motivations during an interview and why that's so crucial to understanding if they are a culture fit or not.
120. Tips For Conducting Successful Remote Interviews
How do you conduct effective remote interviews? Looking for remote interview tips?
121. A Smarter Way to Interview QA Engineers
AI-powered QA interviews: a practical approach to structured hiring that evaluates real skills, reduces bias, and reflects actual QA work.
122. What Will It Take To Save the Internet? An Interview With Jeff Kosseff
Jeff Kosseff, a former reporter turned lawyer and legal scholar, has emerged as one of the leading experts on the 1996 law...
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