The process took 1 day. I interviewed at Adyen (Madrid) in Jul 2025
Interview
Two guys interviewed me. The interview was about concruency. They gave task from hackerrank and asked more details in interview about my task.
Task was about payment system. You should prevent fraud case and implement two method. One of them was payment and other one was getCardCountAtLastTenSecond
Interview questions [1]
Question 1
Say about syncronized keyword and thread safe collections
Pretty smooth experience, recruiter was very good, 5 rounds in total, online test, screening, DSA, system Design, leadership discussion, global leadership round, which was with CTO of adyen,so great overall
I applied the position which aligns with my experience via Adyen's application platform with referral program. My referrer answered their questions carefully, however then I got rejection via email without feedback. I was expecting from them to be clear what's the reason.
Interview questions [2]
Question 1
Based on the job description, which required skills does this person have?
Pretty standard in tech company in NL. This what was the recruiter told me:
- Apply through job portal
- Recruiter call
- Tech interviews
- Offer
I failed after some interviews and no feedback despite asking