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    <title>DEV Community: Nikhil Sharma</title>
    <description>The latest articles on DEV Community by Nikhil Sharma (@nikhil_sharma19).</description>
    <link>https://dev.to/nikhil_sharma19</link>
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      <title>DEV Community: Nikhil Sharma</title>
      <link>https://dev.to/nikhil_sharma19</link>
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      <title>Amazon SDE-2 (L5) Interview Experience — India | 2 Years 8 Months</title>
      <dc:creator>Nikhil Sharma</dc:creator>
      <pubDate>Mon, 28 Sep 2026 11:01:27 +0000</pubDate>
      <link>https://dev.to/nikhil_sharma19/amazon-sde-2-l5-interview-experience-india-2-years-8-months-312k</link>
      <guid>https://dev.to/nikhil_sharma19/amazon-sde-2-l5-interview-experience-india-2-years-8-months-312k</guid>
      <description>&lt;p&gt;After nearly a month of interviews, reschedules, and a few uncertain moments, I finally received the good news — selected for Amazon SDE-2 (L5). 🚀&lt;/p&gt;

&lt;p&gt;Around the same time, I also received another offer, which made this phase of my interview journey even more memorable.&lt;/p&gt;

&lt;p&gt;Role: SDE-2 (L5)&lt;br&gt;
Location: India&lt;br&gt;
Experience: 2 Years 8 Months&lt;br&gt;
Applied Through: Recruiter&lt;br&gt;
Overall Difficulty: Medium–Hard&lt;/p&gt;

&lt;p&gt;💻 Online Assessment&lt;/p&gt;

&lt;p&gt;The OA consisted of 2 DSA questions.&lt;/p&gt;

&lt;p&gt;I was able to clear the OA, but there was no update for quite some time. Later, a recruiter reached out and asked if I was still interested in the SDE-2 role.&lt;/p&gt;

&lt;p&gt;🧠 Round 1 — DSA&lt;/p&gt;

&lt;p&gt;Duration: 60 minutes&lt;/p&gt;

&lt;p&gt;I was asked 2 DSA questions:&lt;/p&gt;

&lt;p&gt;Dynamic Programming — Pick / Not-Pick pattern&lt;/p&gt;

&lt;p&gt;Binary Tree — Variation of Children Sum Property&lt;/p&gt;

&lt;p&gt;I was able to solve both questions and explain:&lt;/p&gt;

&lt;p&gt;Approach&lt;/p&gt;

&lt;p&gt;Time and space complexity&lt;/p&gt;

&lt;p&gt;Edge cases&lt;/p&gt;

&lt;p&gt;The round also included 2 Amazon Leadership Principles (LP) questions toward the end.&lt;/p&gt;

&lt;p&gt;Overall, the round went well.&lt;/p&gt;

&lt;p&gt;🏗️ Round 2 — LLD&lt;br&gt;
Duration: 60 minutes&lt;/p&gt;

&lt;p&gt;Problem: Design a Ride Matching Service&lt;/p&gt;

&lt;p&gt;The discussion covered:&lt;/p&gt;

&lt;p&gt;Classes and responsibilities&lt;/p&gt;

&lt;p&gt;Rider and Driver modelling&lt;/p&gt;

&lt;p&gt;Ride lifecycle&lt;/p&gt;

&lt;p&gt;Driver availability&lt;/p&gt;

&lt;p&gt;Matching logic&lt;/p&gt;

&lt;p&gt;SOLID principles&lt;/p&gt;

&lt;p&gt;Extensibility&lt;/p&gt;

&lt;p&gt;Design patterns&lt;/p&gt;

&lt;p&gt;There were also 2 Leadership Principles questions.&lt;/p&gt;

&lt;p&gt;This wasn't my strongest round, and the recruiter later mentioned that the feedback was mixed.&lt;/p&gt;

&lt;p&gt;🌐 Round 3 — HLD&lt;/p&gt;

&lt;p&gt;Duration: 60 minutes&lt;/p&gt;

&lt;p&gt;Problem: Design Uber&lt;/p&gt;

&lt;p&gt;We discussed:&lt;/p&gt;

&lt;p&gt;Functional and non-functional requirements&lt;/p&gt;

&lt;p&gt;Ride request flow&lt;/p&gt;

&lt;p&gt;Finding nearby drivers&lt;/p&gt;

&lt;p&gt;Rider-driver matching&lt;/p&gt;

&lt;p&gt;Real-time location updates&lt;/p&gt;

&lt;p&gt;Major services&lt;/p&gt;

&lt;p&gt;Database design&lt;/p&gt;

&lt;p&gt;Caching&lt;/p&gt;

&lt;p&gt;Service communication&lt;/p&gt;

&lt;p&gt;Scalability&lt;/p&gt;

&lt;p&gt;Handling concurrent requests&lt;/p&gt;

&lt;p&gt;Failure scenarios&lt;/p&gt;

&lt;p&gt;I was comfortable with this discussion, and the round went well.&lt;/p&gt;

&lt;p&gt;The final part again included Leadership Principles questions.&lt;/p&gt;

&lt;p&gt;🔥 Round 4 — Bar Raiser&lt;/p&gt;

&lt;p&gt;Duration: 60 minutes&lt;/p&gt;

&lt;p&gt;My Bar Raiser round was postponed multiple times.&lt;/p&gt;

&lt;p&gt;The coding question was based on Graphs. I solved it using BFS, and we also discussed how the problem could be extended using Dijkstra's Algorithm.&lt;/p&gt;

&lt;p&gt;After that, we discussed:&lt;/p&gt;

&lt;p&gt;My current work&lt;/p&gt;

&lt;p&gt;Projects&lt;/p&gt;

&lt;p&gt;Technical decisions&lt;/p&gt;

&lt;p&gt;Challenges I faced&lt;/p&gt;

&lt;p&gt;Why I made certain decisions&lt;/p&gt;

&lt;p&gt;The final ~20 minutes were mostly Leadership Principles questions, with multiple follow-ups around my decisions, challenges, impact, and learnings.&lt;/p&gt;

&lt;p&gt;✅ Final Result&lt;br&gt;
After completing all the rounds, I still wasn't completely sure about the result, especially because of the mixed feedback from my LLD round.&lt;/p&gt;

&lt;p&gt;I followed up with the recruiter the next week and finally received the good news:&lt;/p&gt;

&lt;p&gt;Selected for Amazon SDE-2 (L5). 🚀&lt;/p&gt;

&lt;p&gt;The complete process took around 1 month.&lt;/p&gt;

&lt;p&gt;🎯 Key Takeaway&lt;/p&gt;

&lt;p&gt;One thing I learned from the Amazon interview process is that Leadership Principles should not be treated as a formality.&lt;/p&gt;

&lt;p&gt;In my interviews, LP questions were asked across the rounds, and the Bar Raiser round had several follow-ups.&lt;/p&gt;

&lt;p&gt;📚 Resources&lt;br&gt;
A few resources I used during my preparation:&lt;/p&gt;

&lt;p&gt;DSA: Striver's A2Z DSA Sheet — &lt;a href="https://takeuforward.org/prep-hub/strivers-a2z-dsa-sheet" rel="noopener noreferrer"&gt;https://takeuforward.org/prep-hub/strivers-a2z-dsa-sheet&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;LLD: Target Trek — Mastering System Design LLD — &lt;a href="https://targettrek.in/book/system-design/lld" rel="noopener noreferrer"&gt;https://targettrek.in/book/system-design/lld&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;HLD: Target Trek — Mastering System Design HLD — &lt;a href="https://targettrek.in/book/system-design/hld" rel="noopener noreferrer"&gt;https://targettrek.in/book/system-design/hld&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;These helped me structure my preparation across DSA, LLD, and HLD instead of jumping randomly between topics.&lt;/p&gt;

&lt;p&gt;I'll share my interview experiences for Mastercard, PayPal, and EPAM Systems next.&lt;/p&gt;

&lt;p&gt;Hope this helps someone preparing for SDE-2 interviews. 🚀&lt;/p&gt;

&lt;h1&gt;
  
  
  Amazon #SDE2 #InterviewExperience #SoftwareEngineer #DSA #LLD #HLD #SystemDesign #BackendEngineering
&lt;/h1&gt;

</description>
      <category>algorithms</category>
      <category>career</category>
      <category>interview</category>
    </item>
    <item>
      <title>Got Selected for SDE-2 | Tekion</title>
      <dc:creator>Nikhil Sharma</dc:creator>
      <pubDate>Fri, 25 Sep 2026 19:01:52 +0000</pubDate>
      <link>https://dev.to/nikhil_sharma19/got-selected-for-sde-2-tekion-5gco</link>
      <guid>https://dev.to/nikhil_sharma19/got-selected-for-sde-2-tekion-5gco</guid>
      <description>&lt;p&gt;Happy to share that I recently got selected for an SDE-2 role after going through 4 interview rounds — DSA, LLD, HLD and a Managerial round.&lt;/p&gt;

&lt;p&gt;The DSA round had Largest Rectangle in Histogram and Next Greater Element. LLD was probably the toughest round for me, where I had to design and code a TTL-based caching library.&lt;/p&gt;

&lt;p&gt;For HLD, I was asked to design a ticket-booking system like BookMyShow. There were several follow-up questions around concurrent bookings, seat locking, handling two users trying to book the same seat, and payment-related edge cases.&lt;/p&gt;

&lt;p&gt;Resources that helped me 🙌&lt;/p&gt;

&lt;p&gt;DSA — Striver A2Z DSA Sheet&lt;/p&gt;

&lt;p&gt;A big thanks to Striver. The A2Z sheet helped me revise important DSA patterns in a structured way and was really useful for my coding preparation. Striver A2Z DSA Sheet&lt;/p&gt;

&lt;p&gt;LLD — Shreyash Jain&lt;/p&gt;

&lt;p&gt;I followed Shreyash Jain's YouTube content for LLD. It helped me understand how to approach LLD problems, structure classes and apply design patterns.&lt;/p&gt;

&lt;p&gt;HLD — Target Trek: Mastering System Design HLD&lt;/p&gt;

&lt;p&gt;This book helped me structure system design problems from requirements → APIs → services → database → caching → scaling → edge cases. The real-world system design examples were especially useful during my BookMyShow/ticket-booking HLD round.&lt;/p&gt;

&lt;p&gt;Target Trek – Mastering System Design HLD &lt;a href="https://www.targettrek.in/book/system-design/hld" rel="noopener noreferrer"&gt;https://www.targettrek.in/book/system-design/hld&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;Really thankful to Striver, Shreyash Jain and the Target Trek HLD book for the resources. Seeing Selected after all the preparation feels great! 🚀&lt;/p&gt;

</description>
      <category>career</category>
      <category>interview</category>
      <category>softwareengineering</category>
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