I applied through a recruiter. The process took 1 week. I interviewed at Amazon Web Services (Madrid) in Jul 2025
Interview
was contacted by an Amazon recruiter and decided to apply for the proposed role. The interview process was clear and well-structured. It began with a 2.5-hour online assessment that included two challenging coding problems. A key detail: you don’t get to see the full input of the automatic test cases, only their outputs. So, your code needs to be efficient, clean, and capable of handling edge cases proactively.
Next came a 20-minute work simulation designed to mimic real-life work emails from colleagues or project managers. The format was multiple-choice, with responses rated on a scale from "Not at all" to "Very much." You’re asked to make architectural decisions, weigh trade-offs, and assess project dynamics based on these simulated communications.
The process wrapped up with a 10-minute attitudinal questionnaire aimed at understanding how you typically operate in professional environments: your mindset, collaboration habits, and general workplace behavior.
Interview questions [1]
Question 1
One of the coding questions was focused on identifying monotonic progressions, and required applying a mix of hashing and greedy algorithms to solve efficiently. It wasn’t just about getting the right answer, you had to optimize for performance while handling edge cases with limited feedback from the test suite.
On the technical side, the work simulation included questions like selecting the most appropriate type of database based on minimal project specs, choosing the best data ingestion approach for a high-throughput system, or making architectural decisions to handle high traffic and scalability challenges. These weren’t deep-dive system design questions, but they still required solid technical judgment.
I interviewed at Amazon Web Services (Seattle, WA)
Interview
It tested highly on system design, understanding of infrastructure, distributed systems, and data structures and algorithms. Make sure to study LeetCode and make sure you know your system design. Thanks so much.
Interview questions [1]
Question 1
LeetCode question about arrays and hashing (medium - hard)
I interviewed at Amazon Web Services (Dublin, Dublin)
Interview
Behavioral questions, asked to tell about how team disagree with me and we handled that. After that coding question: Balanced brackets. Given stream of chars, tell whether it is balanced or not (each opened bracket should be closed). As follow up, asked how to extend code to support other symbols.
I interviewed at Amazon Web Services (Arlington, VA)
Interview
They give you a couple of online assessments then a final round to discuss the code you wrote and make sure you wrote it. You can probably find all of the questions on leetcode.
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