Flipkart
Indian e-commerce giant tackling massive supply chain and scale problems.
4 Rounds
~18 Days
Hard
The Interview Loop
Recruiter Screen (30 min)
Standard fit check, behavioral questions, and resume overview.
Technical Loop (3-4 Rounds)
Deep dive into domain knowledge, coding, and system design.
Interview Question Bank
Backend Engineer
•
System Design
•
hard
Design Flipkart's Big Billion Days Flash Sale system. Millions of users will try to buy a limited inventory of 10,000 iPhones at exactly 12:00 PM.
#High Concurrency
#Caching
#Message Queues
#Database Locking
Backend Engineer
•
System Design
•
medium
Design a Distributed Rate Limiter for Flipkart's public API to prevent scraping and DDoS attacks.
#Redis
#Algorithms
#Distributed Systems
Backend Engineer
•
System Design
•
hard
Design an Order Management System (OMS) that handles order creation, payment confirmation, inventory deduction, and shipping initiation.
#Microservices
#Saga Pattern
#Event-Driven Architecture
Backend Engineer
•
System Design
•
medium
Design a highly scalable Notification Service capable of sending SMS, Email, and Push notifications to millions of users during promotional events.
#Message Queues
#Microservices
#Third-party Integration
Backend Engineer
•
System Design
•
hard
Design Flipkart's Search Autocomplete system. It needs to suggest products as the user types, with latency under 50ms.
#Trie
#Caching
#Data Aggregation
Backend Engineer
•
System Design
•
medium
Design a Leaderboard system for a Flipkart gaming/engagement zone where millions of users earn coins and the top 100 users are displayed in real-time.
#Redis
#Sorted Sets
#Databases
Backend Engineer
•
System Design
•
hard
Design a Distributed Cache system from scratch (similar to Memcached or Redis).
#Consistent Hashing
#Eviction Policies
#TCP/IP
Backend Engineer
•
System Design
•
hard
Design a Payment Gateway integration service. It must handle routing to multiple payment aggregators (Razorpay, Stripe) and ensure no double charging.
#Idempotency
#State Machines
#Webhooks
Backend Engineer
•
System Design
•
hard
Design Flipkart's Last-Mile Delivery Routing System. Given a delivery executive and 50 packages, determine the optimal route.
#Graph Algorithms
#Geospatial Data
#Heuristics
Backend Engineer
•
System Design
•
medium
Design a Product Catalog System. It must support millions of products, diverse attributes (electronics vs clothing), and rapid reads.
#NoSQL
#Elasticsearch
#Data Modeling
Difficulty Radar
Based on recent AI-sourced data.
Meet Your Interviewers
The "Standard" Interviewer
Senior EngineerFocuses on core competencies, system constraints, and clear communication.
SimulateUnwritten Rules
Think Out Loud
Always explain your thought process before writing code or drawing architecture.