Coolblue Frontend Engineer Interview Questions
& Process
Real candidates share what happened, how many rounds they had,
and how the experience turned out.
Based on 19 interview experiences · FREE TO READ
Candidate interview experiences
First-hand accounts from people who interviewed at Coolblue.
Coolblue
Frontend Developer
Mid Average Negative experience No offer 1 round
Interview process
Recruiter call
Interview formats
Behavioral Technical
I applied online and got an invitation from HR with a proposed time and video link. I confirmed but then heard nothing back. The interview was strange. They asked a lot about me, including my age, which I found odd. They also asked why I wanted to work there but didn't share much about the company. Towards the end, they asked about my experience with automated testing, which wasn't in the job description. They said they couldn't proceed without more automation testing experience, implying they might want 3-5 years. It seemed like they don't pay much for regular developers, and seniors need a lot of TDD automation experience, and even then, it didn't seem very competitive. I guessed their salary range was 63-90K EUR, possibly with growth into senior roles internally. No bonuses or stock options. They seemed to be hiring for both software and tester roles without stating it in the job ad. It felt like a waste of time.
Confirmed questions7 questions
- What motivated your application and what are your career aspirations in a company like this?
- What are you seeking in a work environment?
- What about our company specifically attracted you?
Coolblue
Senior Frontend Developer
Senior Easy Negative experience No offer 2 rounds
Interview process
Recruiter call Phone screen
Interview formats
Behavioral
The whole process was a mess. They didn't want to proceed after the soft skills interview, which was also a mess. They always ask questions like, 'Tell us your experience exactly like this/that.' As an interviewee, you're not a robot and don't have to recall experiences perfectly as they expect. They mentioned that as a senior developer, I should explain technical concepts simply to non-technical people. But how can I explain it easily if you have no idea about technology? It's nonsensical and unfair. Instead of making people feel bad, they should give a project or code assignment and let a developer or business analyst discuss it. If Coolblue doesn't address these issues with HR, they'll lose good talent.
Confirmed questions3 questions
- Tell us about your experience in a specific way?
- Explain technical concepts easily to someone non-technical.
- Tell us about your experience like the situation they are asking about?
Coolblue
Frontend Developer
Entry Easy Positive experience No offer 4 rounds
Interview process
Recruiter call Technical screen Take home Onsite
Interview formats
Behavioral Technical Coding
There were several meetings, and each one was with totally different people. Afterwards, I completed a custom Hackerrank online test. Then, I had another meeting with different people. The test itself had some straightforward open-ended questions at the beginning and then some more challenging coding tasks towards the end - definitely look at those first.
Confirmed questions5 questions
- Can you explain what MVC is?
- Describe how prototype inheritance functions.
- What's your current approach to time management?
Coolblue Frontend Engineer Interview Questions
Quoted word for word from Coolblue interview reports.
“How do browsers map CSS selectors to DOM elements?”
Read reports →“Explain the difference between `var`, `let`, and `const` in JavaScript.”
Read reports →“How do you use functions like reduce(), filter(), and map()?”
Read reports →“What are the key principles of frontend development?”
Read reports →“How do you handle asynchronous operations in JavaScript?”
Read report →“How much notice do you need to provide before starting?”
Read report →“What do you know about functional programming in Javascript?”
Read report →“What do you like about Coolblue and the company culture?”
Read report →“Can you tell me about your age?”
Read report →Formats, difficulty and experience
Across all 19 Coolblue interview reports.