JP Morgan SDE2 Interview Experience: Code Review, HLD, and DSA
Question Details
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
Full Details
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
**
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.
**
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. ---
**
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! 🚀
About This Question
This is a reported interview question from a jpmorgan interview for a swe role during the system design round reported in 2026.
It covers the following topics: Arrays, System Design, Behavioral .
Difficulty rating: Hard
Topics
More JPMorgan Interview Questions
About JPMorgan Interview Reports
This question was reported by a candidate who interviewed at JPMorgan. LeakCode aggregates interview reports from 10+ sources, including 1Point3Acres, Glassdoor, LeetCode Discuss, Blind, Reddit, Indeed, and Nowcoder. Each report is translated where necessary, deduplicated against existing entries, and tagged by company, role, round type, and reporting date.
Use this question as one calibration data point, not a memorization target. Companies typically rotate their question pools every 2-4 months; the exact wording of a 2024 question may differ from what you encounter today. The underlying pattern, difficulty level, and follow-up depth at JPMorgan are the higher-signal extractions to take from this report.
For broader preparation context, the JPMorgan interview process typically includes a recruiter screen, one or two technical phone screens, and a 4-5 round on-site loop covering coding, system design (at L4+ levels), and behavioral. Reports tagged on LeakCode show the round-by-round distribution and typical difficulty calibration. To browse questions filtered by round type and seniority, use the company hub linked above.
How To Practice This Type of Question
Solve similar problems on LeetCode under timed conditions (25-35 minutes per medium difficulty). The goal is pattern recognition: recognize the underlying technique (sliding window, two-pointer, BFS, memoized recursion, etc.) within 60-90 seconds of reading. Strong candidates verbalize their hypothesis out loud before coding, then iterate based on feedback. Weak candidates dive into implementation immediately, lose time on the wrong approach, and run out of time for follow-ups.
Companies update their question pools every 2-4 months. The exact wording of any given question may have been retired by the time you interview. Focus your prep on the pattern, not the specific problem. The patterns that appear in JPMorgan reports consistently are the ones worth investing in; one-off niche problems are not.
During Your JPMorgan Round
Apply the standard interview round template: clarify requirements (2-3 minutes), state your approach out loud and confirm direction with the interviewer (3-5 minutes), code with narration (15-25 minutes), test with concrete examples including edge cases (5 minutes), discuss optimization or trade-offs if time permits (5 minutes). This template is universally accepted across FAANG and adjacent companies; deviating from it produces weaker interviewer feedback signal.
The single most predictive failure mode in JPMorgan reports tagged "no hire": not asking clarifying questions. Interviewers are explicitly trained to weight this. Strong candidates ask 3-5 clarifying questions even on problems that look obvious; weak candidates dive into code immediately. The clarifying-question check is often the first signal recorded in the interviewer's written notes.