- Phone screening - Code challenge - Technical interview where you review the code challenge - Face to face interview in their offices in Rotterdam Make sure you know functional programming in Javascript, and functions like reduce(), filter() and map()

The interview process was well-organized (even though there was 2 weeks gap between 1st and 2nd interview rounds) and highly focused on Coolblue's core values (especially "Vrienden/Friends" and "Gewoon, doen/Just do it"). They care just as much about your communication and mentoring skills as they do about your technical expertise. Round 1: Recruiter Screen. A standard introductory call discussing my background, my motivation for joining Coolblue, and aligning on expectations and process. Round 2: Behavioral & Cultural Fit. A 60-minute video call with two Engineering Team Leads. This was a deep-dive into stakeholder management, conflict resolution, and mentorship. The interviewers were friendly but asked very direct, drilling follow-up questions. If you give a high-level answer, they will immediately ask, "Okay, but what exactly did you do?" or "How did you confirm the result?" Even though I did not get the offer, I rated the experience as "Positive" because their rejection email contained some of the most detailed, constructive feedback I have ever received in my career, which helped me identify exactly what I need to improve in my storytelling. My advice for interviewees: 1. Be Concise: Use the STAR method, but start with the "Bottom Line Up Front." Don't ramble or give too much backstory. They want clear, structured communication. 2. If they ask a specific question you don't have a perfect answer for, do not try to make up filler content.