Amazon Lab126 logo
Amazon Lab126Software Engineer
Updated Sep 2, 2026

Amazon Lab126 Software Engineer Interview Experiences 2026

Real, anonymous reports from people who interviewed for Software Engineer at Amazon Lab126, newest first and distilled into what to expect across the loop.

Get your personalized Amazon Lab126 Software Engineer prep plan
Answer 3 quick questions and we will build a free study plan with the exact topics and questions to focus on.
Build my free plan
Hot & recentNewest first
2 weeks ago

I was preparing for a System Design interview with Amazon’s Fulfillment team for an SDE III role, and the main thing I was trying to figure out was what the journey would feel like in practice. I hadn’t done the loop yet at the time I reached out, but I knew it would likely be a more experience-heavy conversation because system design typically depends on how I structure tradeoffs and explain decisions.

I spent the lead-up time thinking about the “end-to-end” shape of the interview: how the Fulfillment context might show up in the problem framing, and how the interviewers would probe my thinking after my initial plan. I also had a sense that the best answers wouldn’t just list components—they’d need to show how I’d reason about constraints.
3 months ago
Average Neutral Seattle, WA

My loop was pretty compact: two rounds total, and each round was roughly 30 minutes. In both, I got a medium LeetCode-style problem paired with behavioral questions, and the interviewers followed up with more questions after I gave my initial answers. The whole time added up to about an hour total, so I felt the pressure to be efficient and organized.

What surprised me was how much the follow-ups mattered. For the behavioral parts, it wasn’t enough to state what I’d done—I had to extend the reasoning behind my choices, using the examples I’d already laid out. On the coding side, they also pushed on my approach, asking for the reasoning behind the way I’d proceed and what I’d choose as the most optimal method.

Unlock every Software Engineer interview experience

Real Software Engineer interview experiences
  • Difficulty, sentiment and outcomes
  • New reports added every week
See all experiences
Share your interview experience
Interviewed here recently? Add yours to help the next candidate. You'll appear as Anonymous.

What to expect

Distilled from the reports

Interview Structure & Timeline

The interview process typically consists of a recruiter call followed by a series of technical and behavioral interviews, often structured in a compact format with multiple back-to-back sessions. Candidates should expect a quick turnaround in communication, with decisions being made rapidly after the final interviews.

Recruiter callBack-to-back sessionsQuick turnaround

Technical & Coding Rounds

Technical interviews often include LeetCode-style coding problems and system design challenges, with a focus on depth and clarity in reasoning. Candidates should be prepared for questions that probe their understanding of core concepts, as well as practical applications in systems programming and design.

LeetCodeSystem designDepth of knowledge

Behavioral & Leadership Principles

Behavioral interviews are heavily focused on Amazon's leadership principles, requiring candidates to provide structured responses using the STAR method. It's important to have multiple examples prepared that clearly illustrate how past experiences align with these principles.

STAR methodLeadership principlesBehavioral questions

Follow-up Questions & Communication

Candidates should expect follow-up questions during both technical and behavioral segments, which can reveal gaps in reasoning or alignment with the interview prompts. Clear and concise communication is essential to navigate these follow-ups effectively.

Follow-up questionsClear communicationConciseness

Difficulty & Pressure

The overall difficulty of the interviews is perceived as average to challenging, with a notable emphasis on precision and the ability to articulate thought processes under time constraints. Candidates may feel pressure to perform efficiently within the limited time allocated for each question.

Average difficultyTime pressurePrecision

Outcome & Feedback

Candidates often report abrupt communication regarding outcomes, with some receiving quick rejections and others experiencing delays. While some candidates appreciated recruiter follow-ups for debriefing, others felt left without closure after their interviews.

Outcome communicationFeedbackClosure