
Coolblue Interview Questions
& Process
Real candidates share what happened, how many rounds they had,
and how the experience turned out.
Based on 270 interview experiences · FREE TO READ
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30 roles · 270 reportsCandidate interview experiences
First-hand accounts from people who interviewed at Coolblue.
Team Lead
I had a recruiter call first, and then they quickly set up a technical interview with two team leads. I thought that was great because they were fast. But in the second interview, the team leads mostly asked behavioral questions. For example, they asked 'How would you deal with someone who isn’t performing well?' I said I'd try to mentor and help them get back on track. After the interview, they called to say I was rejected because they wanted someone who would 'be direct.' Apparently, they meant confrontational rather than helpful. That’s when I realized the rumors about Coolblue’s toxic culture might be true, and this interview confirmed it.
- What's your approach to managing an underperforming team member?
C# Developer
This was the initial interview for a C# Developer role in Rotterdam. I had applied for a similar position previously but was rejected. A friend referred me this time, and I got to the first interview. When I checked the application link, it showed the position was filled, which became clear during the recruiter's call. The recruiter seemed to indicate they weren't hiring much and the salary was a major issue. I'm on a Highly Skilled Migrant Visa, and Dutch law mandates a certain gross monthly salary (around 5700). I asked for 6000 based on my 8+ years of experience, but the recruiter was hesitant, calling it a dealbreaker. The interview continued with her filling out a form, and she eventually stated that we weren't proceeding due to salary and automated testing concerns. Many large firms have separate QA roles, and despite claiming to be large, they apparently lack this structure. I rated myself 5/10 on automated QA skills (knowing Selenium and Playwright) as she stressed it was crucial. The call ended early, with the recruiter asking questions already covered in my application, which was frustrating as she didn't seem updated. I felt she was obligated to conduct the interview and fill her form. I'm disappointed with the recruiter's attitude and feel it was a waste of my time. I won't apply again while she works there. Learning new tech is easy for developers, and candidates might not fit 100% of the description; companies should be more supportive and look for learning potential rather than reasons to reject. The recruiter also didn't ask if I had any questions.
- How do you ensure your code quality is good?
Delivery Driver
The process takes about 2 hours. First, you'll get instructions on how to properly lift and move a dryer or washing machine using the right techniques. Then, you'll lift a machine together with other applicants, first a 30kg one, then a 60kg, and finally a 100kg one. After that, you'll go through an obstacle course with a colleague and the heaviest machine. Next, you'll go up and down one floor with the colleague and the heaviest machine. Finally, there's a role-playing exercise to test customer service skills, followed by an introductory chat.
- What motivates you to work at Coolblue?
- Are you available to work on Saturdays?
Online Marketeer
First, you upload your CV and cover letter. If that's positive, the recruiter invites you for a short phone call. After this, you will be invited for an online assessment. If that went well, you'll get an invitation for an interview (with a recruiter and marketer) at the office. After this conversation, I was NEVER called back and no contact was made with me. It's understandable if there are better candidates, but not giving feedback after a personal conversation I don't find professional.
- The questions asked in the phone call are communicated in advance by email.
- The questions for the assessment are via Harver and are comparable to assessments from other large companies.
- During the interview, they also asked about a specific scenario for selling something on the website and how you would best promote and/or arrange it on the website.
Coolblue Interview Questions
Quoted word for word from Coolblue interview reports.
“Can you explain what overfitting means and how to detect it?”
Read reports →“Given a dataset of products, identify which one would be the best candidate for removal.”
Read reports →“Describe the customer journey on Coolblue, from arriving via Google to the point of purchase.”
Read reports →“What would you do if another delivery driver was smoking in the van?”
Read reports →“What would you do if you knew another delivery driver was smoking in the van and it wasn't allowed?”
Read report →“Looking at the data on spreadsheet 1, what do you observe?”
Read report →“Has your family considered the possibility of relocating to Rotterdam for this job?”
Read report →“Can you discuss the pros and cons of using an ORM like Hibernate?”
Read report →“Could you review the code in the provided Github link and give us your feedback?”
Read report →Formats, difficulty and experience
Across all 270 Coolblue interview reports.