Ho presentato la mia candidatura online. La procedura ha richiesto 2 settimane. Ho sostenuto un colloquio presso Zalando (Berlino) nel mese di set 2021
Colloquio
The interview started with describing my previous experience and continued on discussing my stronger points. Then, online coding exercise started. Final stage covered technical questions on ML. The interviewer was well prepared and he tried to ask from the areas where I am mostly experienced with. This was a good point.
Domande di colloquio [1]
Domanda 1
Basic probability question
Sorting a sequence of tuples based on the 2nd entry of each tuple, and discussing the running time complexity.
How to improve the running time complexity of the given working solution.
How would you diagnose overfitting problem and how would you decrease it?
Describe how L1 and L2 regularization works.
Describe how dropout works during training and testing.
Ho sostenuto un colloquio presso Zalando (Berlino)
Colloquio
The interview process was poorly organized and unprofessional. Across 5 rounds, multiple interviewers used the exact same question, showing a clear lack of coordination. As a candidate with a PhD in Machine Learning, I was given feedback that my machine learning knowledge was insufficient — yet one of the interviewers was unfamiliar with basic ML terminology and apologized at the end of the interview for his limited English proficiency, which made technical communication nearly impossible. The overall experience suggested a significant mismatch between the stated requirements and the actual evaluation criteria, and raised serious questions about the interview process design and interviewer preparation.
La procedura ha richiesto 3 mesi. Ho sostenuto un colloquio presso Zalando (Berlino) nel mese di ott 2025
Colloquio
They had overall about 5 Interviews.
There is firstly a 30min introduction.
Then a first 1 hour technical interview. If passed you'll go to, final rounds of interviews consisting of 4 interviews: coding, knowledge depth, collaboration, scope and impact.
Domande di colloquio [1]
Domanda 1
Explain a project and go into details.
Explain a situation where you had difficulty communicating.
Ho presentato la mia candidatura online. La procedura ha richiesto 3 mesi. Ho sostenuto un colloquio presso Zalando (Berlino) nel mese di ott 2025
Colloquio
The process involved a 30-minute HR screening, followed by the hiring manager round and then four final rounds: (1) Science Depth, (2) Science Breadth (coding), (3) Scope (product-focused), and (4) Collaboration. It felt extremely exhausting - especially having four ‘final’ rounds - only to receive an automated rejection email at the end. The interviewers were very pleasant and the HR team was prompt, but the overall process took nearly three months, which feels disproportionate given the offered salary.