Walmart SDE III (Backend, 3 YOE) Interview Experience — Bangalore

I recently went through the Walmart SDE III backend interview process and received an offer.Role: SDE III (Java Backend)YOE: 3 yearsLocation: BangaloreInterviewed On: Octo...

I recently went through the Walmart SDE III backend interview process and received an offer. Role: SDE III (Java Backend) YOE: 3 years Location: Bangalore Interviewed On: October, 2025 Applied via: LinkedIn Interview Structure: Total of 3 rounds: DSA LLD + Backend fundamentals Hiring Manager (Behavioral + System discussion) All rounds were done in 3 consecutive days (1 per day) — pretty fast process :)

Round 1 DSA Duration: 1 hrs Difficulty: Medium → Hard level What to expect: Direct or slightly modified versions of problems from LeetCode 150 / NeetCode 150 2 questions to be solved in 1

hr Spiral Matrix problem Linked List (hard-level manipulation problem) My experience: I solved both problems within the allotted time,

passed all test cases, clearly explained my approach, and wrapped up by asking a few questions about the team’s tech stack.

Round 2 LLD + Backend Concepts Duration: 1 hrs 30mins Problem: Design a WhatsApp-like system, with focus on: Chat functionality Search (especially chat search / master search) What the interviewer looked for: 1. LLD Fundamentals Class design Relationships Clean modeling 2. Database Design Schema clarity Trade-offs Indexing (especially for search) 3. API Design Clean endpoints Pagination (this was explicitly expected) Tip: Always mention pagination for search-heavy systems. Bonus discussion: The interviewer went deeper into: Microservices vs Monolith. But interestingly, the focus was more on when NOT to use microservices. Towards the end, I was asked about : Spring Boot annotations Spring Security basics Tip: Using proper terminology (SOLID principles, design patterns, etc.) makes a noticeable difference in LLD rounds

Round 3 Hiring Manager (Offline — Bangalore Office) Duration: 45-50 mins This round was very conversational and comfortable. 1. Project Deep Dive Architecture of past work Leaned towards high-level design Deep dive into: Asynchronous flows Kafka Rule engines (Since my project architecture involved these concepts) 2. Behavioral Questions Conflict resolution Handling escalations Disagreeing with your manager Sample question: Would you push back if code quality is being compromised? 3. Your Questions I asked about: Tech stack Team's work Nature of problems Walmart's work culture Don’t skip this—it leaves a good impression.

Verdict Selected Compensation: 35 LPA (CTC) Final Thoughts: This wasn’t an “out of syllabus” process. It’s quite predictable if you prepare well: Solid DSA Practical LLD Decent backend fundamentals Clear communication No tricks. No surprises. All the best! If you have specific questions, feel free to ask in the comments!