The interview process was fairly complicated and long: it took around 3 months from the initial application to the offer. The interview process consists of several parts: - HR Interview, where they describe the role and you have a chance to briefly describe your experience; - Home coding exercise: basic algorithms and data structures. I used LeetCode and the Grokking Algorithms book to prepare and it definitely helped; - Hiring Manager interview, where they elaborate on the role description and ask deeper questions about your relevant experience; - Round of Final Interviews: Coding, System Design and General Tech, each lasting for 1 hour. They can be spread across several days or be all in 1 day, depending on interviewers' availability. I feel like all interviews' difficulty was fair to the role. Zalando has resources for potential candidates, where they describe the interview process and provide recommendations on how to approach each step. Study them, it helps a lot. The only issue I had during the interview process was the waiting times between steps which induced my anxiety and made the whole process more stressful. On the other hand, if you are confident in how you handled previous steps, you can use this time to prepare for next ones.