Swiggy
Leading Indian food delivery aggregator with complex real-time logistics.
4 Rounds
~15 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 a restaurant search and recommendation system that supports typo-tolerance, prefix matching, and personalized ranking.
#Elasticsearch
#Information Retrieval
#Microservices
Backend Engineer
•
System Design
•
hard
Design Swiggy's real-time delivery tracking system where customers can see the live location of their delivery executive.
#WebSockets
#Kafka
#Redis
#Geospatial Data
Backend Engineer
•
System Design
•
hard
Design a surge pricing engine for Swiggy that dynamically adjusts delivery fees based on weather, traffic, and real-time demand-supply gaps in specific geohashes.
#Stream Processing
#Distributed Systems
#Event-Driven Architecture
Backend Engineer
•
System Design
•
medium
Design a distributed rate limiter for Swiggy's public APIs to prevent abuse and manage tiered API access.
#Rate Limiting
#Redis
#Algorithms
Backend Engineer
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System Design
•
hard
Design Swiggy Instamart's inventory management system to handle high concurrency during flash sales or peak hours without overselling.
#Concurrency
#Distributed Locks
#Database Isolation
#Caching
Backend Engineer
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System Design
•
medium
Design a system to handle Swiggy One memberships, ensuring benefits (like free delivery) are applied correctly at checkout with minimal latency.
#Caching
#Microservices
#Rule Engines
Backend Engineer
•
System Design
•
hard
Design a location-based service to find the nearest delivery executives for order assignment.
#Geospatial Indexing
#QuadTrees
#Geohash
#Redis Geospatial
Backend Engineer
•
System Design
•
hard
Design a payment processing gateway integration system that handles third-party gateway timeouts and failures gracefully.
#Payments
#Idempotency
#Reconciliation
#State Machines
Backend Engineer
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System Design
•
medium
Design a highly available notification system to send SMS, Email, and Push notifications for order lifecycle events.
#Asynchronous Processing
#Message Queues
#Retry Mechanisms
Backend Engineer
•
System Design
•
hard
Design Swiggy's cart and checkout service. How do you handle concurrent modifications from multiple devices and out-of-stock scenarios during checkout?
#State Management
#Data Consistency
#Saga Pattern
Cloud Engineer
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System Design
•
medium
Design a CDN and caching strategy to serve millions of restaurant menus and food images with ultra-low latency across India.
#CDN
#CloudFront
#Caching
#S3
Cloud Engineer
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System Design
•
hard
Design a multi-region active-active architecture on AWS for Swiggy's core order management system to ensure high availability during a regional outage.
#AWS
#Global Accelerator
#DynamoDB Global Tables
#Route53
Cloud Engineer
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System Design
•
hard
Design the cloud infrastructure for Swiggy Instamart's real-time inventory system. It needs to handle high read/write throughput and ensure items aren't oversold.
#AWS
#Redis
#Kafka
#Databases
Cloud Engineer
•
System Design
•
hard
Design a rate-limiting service at the API Gateway level to protect Swiggy's backend services from abuse or DDoS attacks during New Year's Eve.
#Rate Limiting
#API Gateway
#Redis
#Algorithms
Cloud Engineer
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System Design
•
hard
Swiggy uses Kafka extensively for event streaming (e.g., order state changes). How do you architect a highly available Kafka cluster across multiple Availability Zones?
#Kafka
#High Availability
#Zookeeper/KRaft
#AWS
Data Engineer
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System Design
•
hard
Design a real-time dashboard pipeline for Swiggy's restaurant partners to see live orders and daily earnings.
#Real-time Analytics
#Kafka
#Stream Processing
#Databases
Data Engineer
•
System Design
•
hard
Design a surge pricing data model and pipeline that updates delivery fees every 2 minutes based on demand and supply.
#Micro-batching
#Geospatial Data
#Machine Learning Pipelines
Data Engineer
•
System Design
•
medium
Design a data lake architecture for Swiggy to store and query historical geospatial data (delivery partner pings).
#Data Lake
#AWS S3
#Partitioning
#File Formats
Data Engineer
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System Design
•
medium
How would you design a deduplication system for clickstream events coming from the Swiggy app?
#Deduplication
#Bloom Filters
#Stream Processing
Data Engineer
•
System Design
•
hard
Design the data pipeline for Swiggy Instamart's real-time inventory management system.
#Event Sourcing
#Data Consistency
#Architecture
Data Scientist
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System Design
•
hard
Design a system to predict whether an ongoing order will be delayed, so proactive communication can be sent to the customer.
#Streaming Data
#Event-driven Architecture
#Classification
#Kafka
Data Scientist
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System Design
•
hard
Design a system to suggest autocomplete queries as a user types in the Swiggy search bar, considering their past order history.
#Trie Data Structure
#Caching
#Personalization
#Low Latency
Data Scientist
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System Design
•
hard
Design an ETA (Estimated Time of Arrival) prediction system for Swiggy food delivery.
#Machine Learning Architecture
#Real-time Systems
#Regression
#Feature Engineering
Data Scientist
•
System Design
•
medium
Explain how you would build a recommendation engine for Swiggy Instamart to cross-sell items during checkout.
#Recommender Systems
#Collaborative Filtering
#Market Basket Analysis
#Deep Learning
Data Scientist
•
System Design
•
hard
How would you build a search ranking algorithm for restaurants when a user searches for a generic term like 'Biryani'?
#Information Retrieval
#Learning to Rank
#Personalization
#NLP
DevOps Engineer
•
System Design
•
hard
How would you design the Kubernetes cluster architecture to handle Swiggy's New Year's Eve traffic spike where load increases by 10x in minutes?
#Kubernetes
#Autoscaling
#AWS EKS
#Capacity Planning
Machine Learning Engineer
•
System Design
•
hard
Design a demand forecasting system for Swiggy Instamart dark stores to predict inventory requirements for the next 7 days.
#Time Series Forecasting
#Supply Chain
#Demand Prediction
#Deep Learning
Machine Learning Engineer
•
System Design
•
hard
Design Swiggy's ETA (Estimated Time of Arrival) prediction system from scratch. How would you account for food preparation time, delivery partner assignment, and real-time traffic?
#ML System Design
#Regression
#Real-time Systems
#Geospatial Data
Machine Learning Engineer
•
System Design
•
hard
Design a personalized restaurant recommendation system for the Swiggy homepage. How do you balance relevance, novelty, and business metrics like delivery cost?
#Recommender Systems
#Collaborative Filtering
#Two-Tower Models
#Ranking
Machine Learning Engineer
•
System Design
•
hard
How would you design a dynamic 'surge pricing' model for Swiggy delivery during peak hours or bad weather conditions?
#Dynamic Pricing
#Elasticity
#Regression
#Marketplace Matching
Machine Learning Engineer
•
System Design
•
medium
Design a machine learning system to detect promo-code abuse and fraudulent orders in real-time.
#Anomaly Detection
#Classification
#Graph ML
#Real-time Inference
Machine Learning Engineer
•
System Design
•
medium
How would you design a model to predict the exact food preparation time for a specific dish at a specific restaurant?
#Time Series
#Regression
#Feature Engineering
Machine Learning Engineer
•
System Design
•
medium
Design a system to predict Delivery Partner churn. How would you define 'churn' for gig workers who don't have formal contracts?
#Survival Analysis
#Classification
#Churn Prediction
#Feature Engineering
Machine Learning Engineer
•
System Design
•
medium
Design an intent classification model for Swiggy's customer support chatbot. How do you handle out-of-domain queries and multi-lingual text?
#NLP
#Classification
#Real-time Inference
#Chatbots
Software Engineer
•
System Design
•
hard
Design a surge pricing system that dynamically updates delivery fees based on weather, demand, and fleet availability.
#Stream Processing
#Event-Driven Architecture
#Scalability
Software Engineer
•
System Design
•
hard
Design Swiggy's real-time order tracking system where customers can see the live location of the delivery executive.
#High Level Design
#WebSockets
#Kafka
#Geospatial
Software Engineer
•
System Design
•
medium
Design a distributed logging and monitoring system for Swiggy's microservices architecture.
#Observability
#ELK Stack
#Distributed Tracing
Software Engineer
•
System Design
•
hard
Design Swiggy's restaurant search and recommendation engine. How do you handle typos and location-based filtering?
#Elasticsearch
#Search
#Recommendation Systems
Software Engineer
•
System Design
•
medium
Design a notification system that sends SMS, Email, and Push notifications for order status updates with an at-least-once delivery guarantee.
#Pub/Sub
#Asynchronous Processing
#Retry Mechanisms
Software Engineer
•
System Design
•
hard
Design the delivery executive assignment system. How do you efficiently find the best executive for a new order?
#Geospatial Databases
#Quadtrees
#Matching Algorithms
Software Engineer
•
System Design
•
medium
Design a highly available API Gateway for Swiggy that can handle rate limiting, authentication, and request routing.
#API Gateway
#Rate Limiting
#Security
Software Engineer
•
System Design
•
hard
Design the inventory management system for Swiggy Instamart. How do you handle high concurrency when 1000 users try to buy the last PS5 during a flash sale?
#Concurrency
#Distributed Locks
#Database Transactions
Software Engineer
•
Technical
•
hard
Explain the CAP theorem. In the context of Swiggy's cart service, would you prioritize Availability or Consistency, and why?
#CAP Theorem
#Distributed Systems
#Architecture
Difficulty Radar
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Senior EngineerFocuses on core competencies, system constraints, and clear communication.
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