The interview process for the Software Development Engineer (SDE) role was structured and focused on assessing both technical and behavioral competencies. It began with an online assessment, which included data structures and algorithms questions. After clearing that round, I was invited to a series of technical interviews, where I solved coding problems in real-time using Python. The questions involved problem-solving, edge case handling, and time/space complexity analysis.
Additionally, I was evaluated on my understanding of core computer science concepts, such as object-oriented programming, system design basics, and debugging. The final stage involved behavioral interviews based on the company’s leadership principles and past experiences—covering scenarios like working in a team, handling failure, and ownership.
Interview questions [1]
Question 1
Can you write a function to find the first non-repeating character in a string?"
This question tested my knowledge of data structures, particularly hash maps (dictionaries in Python), as well as my ability to optimize for time and space complexity. I walked through a brute-force solution first, then discussed an optimal approach using a two-pass algorithm with a dictionary.
I received an Online Assessment (OA) invitation from Amazon. The assessment consisted of two coding questions of medium to hard difficulty, focusing on data structures, algorithms, and problem-solving skills. The questions required efficient solutions with optimized time and space complexity. After the OA, shortlisted candidates typically proceed to one or more technical interview rounds covering coding, system design, and behavioral questions based on Amazon's Leadership Principles.
Applied online via career site, received OA link within 2 days and cleared it, Round 1- DSA, Round-2 DSA, Round 3- System Design, Round 4- Mixed Technical Discussion and Behavioral.
Interview questions [1]
Question 1
Number of Islands (LC 200 - Medium): You are heavily advised to know how to traverse connected components using a 2D grid.
Interview involved one screening OA and one final day, 3 back to back interviews, one technical, one behavioral and one mix. Focused on leader ship principles and DSA and algo