I recently interviewed for a Full-Stack Developer position at Amazon, and the process consisted of 7 rounds. Below is a detailed breakdown of each stage:

Screening Call (Round 1)

A recruiter reached out to discuss my background, experience, and interest in the role.

• Basic questions about my resume, projects, and preferred location.

Online Assessment/Test (Round 2)

• A timed coding test consisting of two data structures & algorithm problems.
• Topics included arrays, strings, trees, graphs, and dynamic programming.
• A work simulation assessment to evaluate problem-solving in real-world scenarios.

Technical Interview (Round 3)

• Conducted by a software engineer from the team.
• Focused on system design fundamentals, data structures, and algorithms.
• Some behavioral questions related to Amazon’s Leadership Principles (LPs).

Coding & Leadership Principles (Round 4)

• A mix of DSA questions and behavioral questions.
• One medium-hard Leetcode-style problem.
• LP questions related to ownership, problem-solving, and handling ambiguity.

Coding & Leadership Principles (Round 5)

• Another technical coding round with a software engineer.
• One hard-level DSA question, focusing on optimization.
• More LP-based questions assessing collaboration and decision-making.

Coding & Leadership Principles (Round 6)

• Similar format: One algorithm-heavy problem.
• Emphasis on writing clean, efficient code and explaining the thought process.
• Deeper behavioral discussion on past experiences, challenges, and leadership.

System Design Interview (Round 7)

• A high-level system design discussion.
• Asked to design a scalable application, discussing database choices, API design, caching, and fault tolerance.
• Evaluated on design decisions, trade-offs, and scalability considerations.

What is the most complex problem you solved?