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Elixir developer interview questions featured image

Hiring the right Elixir developer can make or break your architecture. From managing millions of lightweight processes to designing fault-tolerant supervision trees, Elixir demands more than syntax memorization – it requires deep fluency in concurrent, functional systems.  Elixir coding tests combined with strategic interview questions help uncover whether candidates can build scalable applications, not just write code.  At TestGorilla, we believe smarter hiring starts with better screening. Bel

6 tricky Elixir developer interview questions to ask when hiring

featured image for Julia developer interview questions

Hiring the right Julia developer to take your research and machine learning projects to the next level can be challenging. A lot of applicants say they have Julia experience on their resumes, when actually they lack true fluency or the performance-oriented mindset needed to get the most out of Julia programs. Choosing the wrong developer can grind your projects to a halt or result in poorly performing code. So, it’s important to make sure you’re testing candidates’ Julia coding skills and asking

5 tricky Julia developer interview questions to ask when hiring

Blog thumbnail Dart developer interview questions

Finding the right Dart developer to build the web and mobile apps your company needs can be tough. A lot of candidates say they have Dart experience, but they lack the skills needed to write clean Dart code, debug quickly, and build complex user-facing apps. Hiring the wrong developer can lead to lengthy project delays or glitchy apps that harm your business’s reputation with customers. So, it’s crucial to ask the right questions during your interview process and test candidates’ Dart coding ski

6 tricky Dart developer interview questions to ask when hiring

Blog thumbnail Swift developer interview questions

Looking at resumes only tells you so much. The Swift developer who seems perfect on paper might freeze when faced with a complex retain cycle or find it difficult to handle the nuances of reference types in real-world code. The right interview questions, alongside comprehensive Swift developer tests, reveal whether candidates truly understand Swift's architecture or are just reciting memorized definitions. We've listed eight of the trickiest questions below.

8 tricky Swift developer interview questions to ask when hiring

 tricky Scala developer interview questions to ask when hiring featured image


Finding the right Scala developer isn’t easy, especially when you need someone who can write functional, scalable, and production-ready code. That’s where great interview questions come in. The right questions reveal how candidates think, not just what they know.  This guide gives you tricky, targeted Scala developer interview questions to help you go beyond surface-level answers and find real talent. Plus, we discuss how you can screen candidates using Scala coding tests for smarter hiring.  

8 tricky Scala developer interview questions to ask when hiring

tricky Erlang developer interview questions to ask when hiring featured image


Hiring an experienced Erlang developer isn’t easy. Many candidates list Erlang on their resumes – but not all can build fault-tolerant systems, navigate supervision trees, or debug message-passing issues in a live environment. And in industries like telecoms, fintech, or infrastructure, one bad hire can compromise uptime, reliability, and long-term maintainability. That’s why your interview questions must go deeper than basic syntax by testing a candidate’s real-world understanding of Erlang’s c

8 tricky Erlang developer interview questions to ask when hiring

12 tricky Perl developer interview questions to ask when hiring featured image

Hiring a skilled Perl developer isn’t easy. On paper, many candidates look the part – but when debugging real-world scripts, wrangling complex data structures, or writing clean, maintainable code, only a few truly deliver – and an unskilled developer can sink your system. That’s why your interview questions must dig deeper than trivia or textbook knowledge and assess practical skills to identify candidates who can contribute meaningfully from day one. In this article, we explore some tricky Perl

12 tricky Perl developer interview questions to ask when hiring

Hiring & recruiting

55 claims adjuster interview questions (+ sample answers) featured image

Claims adjusters help decide how much should be paid out on insurance claims. But finding someone with the right mix of technical knowledge, problem-solving, and people skills isn’t easy.  A poor hire can lead to bad decisions, legal issues, and unhappy customers – so getting it right really matters. Luckily, the right interview questions help you get to know candidates beneath the surface. You’ll see their strengths and weaknesses, what makes them tick, and how they might fit into your team. To

55 claims adjuster interview questions (+ sample answers)

30 soft skills interview questions featured image

Today’s employers are struggling with not only hiring but also retaining good employees. Much of this stems from recruiting people who may be experts in their field but just don’t mesh well with your company’s culture and people.  That’s why it’s so important to learn about candidates’ soft skills, aka human skills, before rolling out that offer letter. But what are soft skills, and how can you measure them?  You're about to find out.  In this article, we explain soft skills in the workplace and

30 soft skills interview questions

20 medical coder interview questions to hire top talent featured image

Hiring a subpar medical coder is more than just an inconvenience – it directly threatens patient data security, regulatory compliance, and your healthcare organization's financial stability. Inaccurate medical coding leads to rejected claims, reimbursement delays, damaged reputation, and even legally binding financial repercussions.  Don’t worry – you can avoid all this. Below, we’ve compiled 20 interview questions to ask your medical coding candidates during a structured interview.  

20 medical coder interview questions to hire top talent

data governance interview questions featured image graphic

Data governance professionals must keep data clean, secure, and compliant – all while working across teams and making sure policies work. A bad hire leaves you with messy data, regulatory headaches, and decisions based on bad information.  A great interview can reveal who understands data governance, has strong data management skills, and knows how to turn policies into real business impact. That’s why we’ve pulled together a list of essential data governance interview questions.

13 data governance interview questions

Panel interviews are a great way to bring diverse perspectives to the hiring process by including hiring managers, senior management, and subject matter experts as interviewers.   However, they can quickly become a case of too many cooks in the kitchen, overwhelming candidates with different approaches and overlapping questions.  How can you avoid this? We recommend taking a considered approach and structuring your panel interview. Below, we’ve put together a list of questions you can use as a s

37 panel interview questions to ask candidates

Top 40 interview questions for credit analysts featured image

Finding a great credit analyst isn’t easy. They need a sharp analytical mind, strong risk assessment skills, and the ability to communicate financial insights. Hire the wrong person, and you could face poor lending decisions, increased financial risk, and strained client relationships. That’s why asking the right interview questions is so important. By doing so, you can go beyond a candidate’s resume and uncover technical expertise, problem-solving ability, and risk management strategies. To sav

What is behavioral interviewing?

Human resources

Job interviews are a crucial part of hiring. They give both candidates and employers a chance to connect, understand each other, and assess job fit.  Despite their importance, many employers miss the mark when it comes to interviewing – resulting in costly mis-hires, a damaged employer brand, and wasted time and resources. The good news? We’re here to help you avoid all of that.  In this article, we share 28 job interview statistics, plus trends and insights into what’s working best, so you can 

Job interview statistics: Everything you need to know

How to conduct an online coding interview and assess developers featured image

Online coding interviews are a convenient and cost-effective way to test your developer candidates—especially for remote roles. But without the right preparation, these interviews won’t give you the full picture of your candidates’ abilities.  You’re making a decision that could impact your entire development team. The right hire means better productivity, innovation, and team cohesion, whereas the wrong choice can mean poor code quality, costly delays, and a demoralized team.   So, how do you c

How to conduct an online coding interview and assess developers

Skills-based hiring

Should you post your interview questions online graphic

In April 2024, UK retailer the John Lewis Partnership announced it would publish interview questions for all roles on its website, allowing candidates to prepare their responses.[1]  The HR community widely praised the move, particularly for its positive impact on neurodiverse people. These individuals are often underrepresented in the workforce and face barriers to employment, especially in traditional interview processes.  In light of John Lewis’s announcement, it’s a good time to ask: Should 

Posting interview questions online: Should you do it?

With the rise in hybrid and remote work, virtual interviews are more common than ever. 82% of talent professionals now use them, and most recruiters agree that virtual interviews make hiring more efficient and stress-free. However, virtual interviews have downsides. Subtle nonverbal cues can be lost in translation, making it challenging to assess candidates accurately and increasing the risk of costly mis-hires.  Luckily, there are ways to get the best of both worlds – that’s why we’ve put toget

What is a virtual interview? + How to conduct one

interview questions for data entry supervisors graphic

Finding a good data entry supervisor is tough. The right candidate must have a unique blend of attention to detail, fast and accurate typing, and the ability to lead and manage a team. One mis-hire, and you could face critical errors, delayed projects, and dissatisfied clients.   That’s why getting to know someone properly before you hire them is so important. An interview is a fantastic way to do this. With the right questions, you can dive into a candidate’s skills, experiences, and personalit

26 interview questions for data entry supervisors

20 interview questions for supervisors featured image

It’s not easy to find a good supervisor. You need someone with the right mix of hard and soft skills, managerial experience, and personality traits – and not everyone is cut out for the job.  Hiring the wrong supervisor can disrupt work, damage team morale, and lead to high turnover rates. Unfortunately, this is more common than you think. But don’t worry, we’re here to help.  In this article, we share 20 of the best interview questions for supervisor roles. These questions will help you get to 

20 interview questions for supervisors

In today’s complex, data-driven world of work, critical thinking skills are more important than ever. According to the World Economic Forum’s Future of Jobs Report, the demand for critical thinking and analysis is growing at a faster rate than any other skill group. For this reason, hiring managers now need a robust system for assessing critical thinking skills for most positions they fill. When we talk about critical thinking, we refer to a range of sub-skills including research, analysis, judgment, problem-solving, and self-reflection. The interview is a great opportunity to evaluate a candidate’s critical thinking skills. It enables hiring managers to probe into their personal thinking process while tailoring the assessment to the situational needs of the role.  For the best results, interviews should be preceded by a Critical Thinking test, along with other skills and personality tests. Pre-employment testing allows you to get an in-depth understanding of your candidates’ abilities, identify top talent, and screen out unsuitable applicants. To make the interview worthwhile, hiring managers need to ask the right kind of critical thinking questions to candidates. But these aren’t always immediately obvious! That’s why we’ve put together 15 of the best critical thinking interview questions for you to use in your hiring process. These include 10 behavioral and 5 situational critical thinking questions, allowing you to create an interview structure befitting your business requirements. Sample answers for each question are also included for your reference.

Critical thinking is an important skill in any role, and its significance only increases the more complex responsibilities employees have. The best way to ensure your candidates have the skills to tackle sophisticated problems is to screen applicants using a Critical Thinking skills test and create a shortlist of quantifiably competent interviewees. The next step is to ask thought-provoking interview questions. This interview process is tricky, but to help you out, we’ve created a list of 17 cri

17 critical thinking interview questions to find the perfect candidate

Hiring managers want nothing more than for the interviewee sitting in front of them to be the right person for the job. Tough job interview questions aren’t designed to catch candidates out for the sake of showing their weaknesses. Rather, they give them another opportunity to show their critical thinking skills in action. What’s more, job interview statistics show that candidates prefer difficult interviews.   These are less open-ended and require more creativity than common interview questions

25 tough interview questions and answers to help you hire talent

 great questions to ask a potential employee featured image

Looking to interview a potential employee? Though you may already have questions specific to the available role, it’s also important to prepare more generic questions to ask interviewees to get a better feel for your candidates. We have compiled 75 questions to ask a potential employee for you to use alongside talent assessments.  These questions touch on various topics – from general questions to soft skills – each aimed at bringing out the most useful answers from your applicants. 


75 great questions to ask a potential employee

55 supply chain interview questions to assess candidates’ skills featured image

Looking to hire top supply chain managers or skilled supply chain specialists? Assessing candidates’ skills quickly and accurately is a must. To help you evaluate candidates, we’ve prepared a list of the best 55 supply chain interview questions you can use to gain a better understanding of their skills, knowledge, and expertise.  You’ll also find answers to the most important 25 questions, enabling you to assess candidates’ responses, even if you’re not familiar with the intricacies of supply ch

55 supply chain interview questions to assess candidates’ skills 

Entity framework interview questions featured image

If your development team relies on Entity Framework for data management in .NET applications, finding the right talent is key. To help you find and hire the best candidates who know Entity Framework (EF) inside out, we've put together a list of more than 60 Entity Framework interview questions. To make the candidate evaluation process easier for you, even if you’re not an EF expert, we’ve also included sample answers to 20 of them.  These questions will help you assess the technical proficiency 

60+ Entity Framework interview questions to hire top developers

65 Pandas interview questions to hire top data scientists

Pandas is a powerful open-source data manipulation and analysis library for Python and an invaluable tool for data manipulation and analysis. However, to make full use of it, it’s crucial to hire expert data analysts and scientists who are proficient in Pandas and can transform vast amounts of raw data into meaningful and organized information. Without them, your data analysis efforts might simply fall short and not live up to your expectations.  To help you assess candidates’ proficiency with P

Talent assessment

The traditional interview process is time-consuming and often fails to reveal a candidate’s true potential. This inefficiency usually leads to poor hiring decisions and high turnover rates. Hard interview questions and answers help you identify applicants who can perform their jobs well. Combining these complex interview questions with talent assessments is the best approach to make your hiring process more efficient. In this article, we review 23 hard interview questions to ask candidates to be

23 hard interview questions to ask candidates and assess their skills objectively

70 payroll interview questions to hire skilled payroll staff

Hiring the right payroll staff is crucial for the financial health of your business.  Payroll clerks and specialists process and manage employee payments, verify timesheets, calculate wages, handle tax deductions, and answer employees payroll-related questions. For all this, they need a keen eye for detail, excellent communication skills, and the right technical knowledge to support employees and the organization effectively. When hiring payroll staff, you need to evaluate candidates’ skills acc

35 network engineer interview questions and answers to hire top talent

When looking to hire a network engineer for your organization, the simplest and most objective way to evaluate skills is to build a skills-first process featuring skills tests and interviews.  Pre-employment skills assessments give all candidates an equal opportunity to show their skills, enabling you to make objective, accurate, and impartial decisions. Use those in combination with the right network engineer interview questions, and you’ll be sure to make the right hiring choice.  Use our Netw

Being able to accurately evaluate candidates’ collaboration skills is essential to making the right hiring decisions. After all, if a person is an expert in their field but cannot work well with others, they’re less likely to contribute to the team than someone who’s knowledgeable, experienced and also a strong communicator. To hire great team players, you need the right combination of skills tests and in-depth interviews.  In this article, we’ll share our top 50 collaboration interview question

50 collaboration interview questions to build a strong team

65 Kotlin interview questions to hire top developers

If your development team uses Kotlin to build robust, scalable applications, securing the right talent is crucial. To help you spot the best talent in your candidate pool and make sure you’re able to hire top Kotlin developers, we’ve built a comprehensive list of 65 Kotlin interview questions. Below, you’ll also find sample answers to 25 of them, enabling you to evaluate your candidates’ knowledge, even if you aren’t familiar with Kotlin yourself. With these questions, you’ll be able to evaluate

54 conflict resolution interview questions to hire great team players featured image

The ability to diffuse conflicts is key for any team and helps build a positive team culture – so, it’s a good idea to make sure candidates have it.  How? With the right conflict resolution interview questions.  To help you out, we’ve selected the best questions you can ask applicants to evaluate their conflict management skills, along with sample answers. To gain deeper insights into their abilities, you can also use a Communication or a Negotiation test at the top of your recruitment funnel. T

54 conflict resolution interview questions to hire great team players

For job seekers

7 most common interview questions and answers graphic

The interview questions you’re about to read may be familiar to you. Questions about your strengths, experience, and organizational skills aren’t exactly reinventing the interview.  But that doesn’t mean you should wing it when the interviewer asks them. Interviewers use these questions to see if you can communicate well, be truthful about your experience, and tell an engaging story about your background.  Since these questions have stood the test of time, so don’t be vague or make up stories. S

What are the 7 most common interview questions and answers?

Job interviews should be about identifying the candidates that bring something extra to a role – not making sure they meet basic requirements. Interview assessments give candidates a chance to prove their skills upfront, so you don’t have to worry about screening in the interview. This speeds up shortlisting and enables you to focus on learning more about the candidate's attitude, experience, and ambitions for the role instead of checking their MySQL skills or other aptitudes listed on their res

7 types of interview assessments that companies should give candidates

Every job requires problem solving skills, whether you’re a cashier working out how to process a coupon with a broken scanner or a busy executive dealing with supply chain issues.  he problem is that it’s difficult to demonstrate a candidate’s ability to problem-solve in an interview – or for employers and hiring managers to spot it. Finding the truth requires the right variety of problem-solving questions asked in interviews. Unlike problem-solving questions people encounter in school, problem-

12 problem solving interview questions and answers

50 HTML interview questions to assess the skills featured image

Proficiency in HTML (and its latest version, HTML5) is essential for creating beautiful and functional websites that are easy to navigate and that provide a great user experience. So, if you’re looking to hire a designer or web developer who’s experienced with HTML, you need to make sure their skills match your needs. The best way to do this is by building a skills-based hiring process, featuring skills tests and the right HTML interview questions.  TestGorilla’s here to help you with both. Firs

50 HTML interview questions to assess the skills of web developers and designers

45 CSS interview questions to hire skilled web developers

Whether you're looking to hire a web developer, web designer, or a front-end developer, proficiency in CSS (Cascading Style Sheets) is essential for creating beautiful, responsive, and user-friendly websites. To help you assess your applicants' CSS knowledge effectively, we've compiled a list of the top 45 CSS interview questions, along with sample answers to 25 of them. These questions will give you a well-rounded view of candidates’ skills, from basic CSS concepts to advanced technical knowled

50 data modeling interview questions to hire top talent featured image

Finding the right data modeler or analyst can make a big difference in how well your organization uses its data and whether it manages to stay ahead of the competition.  But what’s the best way to identify top talent in such a new and competitive field? By using skills tests to assess applicants – and then invite the best ones to an interview, to ask them targeted data modeling interview questions. This skills-based approach to hiring enables you to evaluate candidates fairly and objectively and

50 data modeling interview questions to hire top data experts

The 7 best video interview software for online candidate screening featured image

The traditional interviewing process can be costly and time-consuming, requiring resources many companies, especially startups, can’t afford.  According to research by Josh Bersin Company, the average hiring process lasts 44 days, mostly due to multiple interviews. As a result, candidates often lose interest. Video interview tools streamline recruitment, enabling you to quickly schedule interviews and efficiently compare candidates without compromising hiring decision timelines. In this article,

The 7 best video interview software for online candidate screening

55 data engineering interview questions (+ sample answers) to hire top engineers

For any organization that works with big data extensively, hiring skilled data engineers is a must. This means that you need to evaluate applicants’ abilities accurately and objectively during the recruitment process, without bias.  But how can you achieve that?  The best way to assess candidates’ skills is to use a pre-employment talent assessment featuring skills tests and the right data engineering interview questions.  Here are some skills tests you can use to evaluate your next data enginee

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