I applied online. I interviewed at Blacklane (Madrid) in Mar 2026
Interview
The interview process was clearly shared and defined. It started with a screening interview which included a few high level technical questions that were going to be shared with the team.
Then it followed a live coding exercise assited by AI tools. A few days later I had a system design interview and lastly a more cultural interview before getting an offer.
As I said the process was great, smooth and well organised. It also was quick, less than 2 weeks since the screening to the offer.
Interview questions [1]
Question 1
One of the questions I had was: From my perspective what is a good engineer?
I applied through a recruiter. The process took 2 weeks. I interviewed at Blacklane (Berlin) in Oct 2025
Interview
The interview was smooth, and the people were all nice and friendly. They showed empathy and involvement.
Overall, it took around 2 weeks from the recruiter contact to the offer.
The process consists of 3 steps.
First is a coding challenge. This one is a bit different from other companies, as they allow you to Google things if you can explain what you are googling and what you need.
Next is a system design. You will be asked to design a system, draw a diagram using a Miro board, and explain your decisions.
The last one is a behavioral part with the team leaders.
In my case, we didn't have much time for my questions, so I sent them to HR, and the team responded to each question within one day.
Interview questions [1]
Question 1
To code a simple service function and then explain how you'd support it in the production environment.
I applied through a recruiter. The process took 2 weeks. I interviewed at Blacklane in Sep 2025
Interview
An initial technical chat followed by a coding interview, a system design interview and a final, culture fit interview.
Everyone was very friendly yet professional and the technical exercises were challenging without being arbitrary.