JP Morgan SDE2 Interview Experience: Code Review, HLD, and DSA

Thought I’d share my recent interview experience. Hopefully this helps someone who is currently preparing for similar roles. ### Background

Education: B.Tech in Computer Science from a Tier-3 coll

Thought I’d share my recent interview experience. Hopefully this helps someone who is currently preparing for similar roles. ### Background

Education: B.Tech in Computer Science from a Tier-3 college

Experience: ~3.5 years

Current Role: SDE-2 at Bank ### Online Assessment

Platform: HackerRank The assessment had 2 DSA questions. Both were standard problem-solving questions and I managed to solve them within the given time. Interestingly, the interview call came almost 1 month after completing the assessment, which was quite unexpected. ### Interview Process

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Round 1 Coding + Code Review (1 hour)**

Part 1 – Code Review I was given a pull request and asked to review the code as if I were reviewing a teammate’s PR. The discussion mainly revolved around: * Spring Boot fundamentals * Coding best practices * Identifying potential improvements in the implementation

Part 2 – DSA The coding question was based on arrays involving a circular traversal concept.

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Round 2 System Design (HLD) – 1 hour The task was to design a high-level architecture for a Rate Limiter. Topics discussed included: * Different design approaches * Algorithms which best suits * Trade-offs between solutions * Scalability considerations * Handling failures and edge cases There were a few moments where the interviewer and I had different opinions on certain design decisions. I tried to justify my approach with clear reasoning and examples. Some of my points were accepted while others were challenged, which made it a very engaging and deep technical discussion**. Looking back, I feel there were a few design aspects where I could have improved my approach. ---

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Round 3 Managerial /

Behavioral 45 mins This round focused more on behavioral and communication aspects. Some areas covered: * Communication and collaboration * Leadership mindset * Real project experiences A few example topics discussed: * Handling difficult challenges at work * Resolving conflicts within a team * Making decisions under tight deadlines I answered most questions using real examples from my past projects and work experience**. ### Outcome

Status: Selected ✅ Overall, it was a great learning experience and a well-structured interview process. For preparation, I focused on DSA practice, system design fundamentals, and reviewing common interview questions through interview preparation sheets. Hope this breakdown helps someone who is currently preparing. Wishing everyone the best for their upcoming interviews! 🚀