Went through 3 interview rounds at Adyen. The third one (and last one for me) was a case study interview. It was very intensive and honestly didn't leave me with a good feeling about the company. Luckily I had two other interview processes ongoing at the same time and both of them ended up sending me job offers. At the same time Adyen declined me, which was probably the best for me. I chose one of the offers I already got, and I am still working for that company after 1,5 years :)