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
Software Engineer
•
Behavioral
•
medium
Tell me about a time you had to push back on a product manager's unrealistic deadline. How did you negotiate the scope?
#Communication
#Conflict Resolution
#Agile
Software Engineer
•
Behavioral
•
medium
Describe a situation where a system you built or maintained failed in production. What was the root cause and how did you resolve it?
#Incident Management
#Accountability
#Problem Solving
Software Engineer
•
Behavioral
•
medium
How do you balance the need to deliver new product features with the necessity of paying down technical debt?
#Prioritization
#Technical Debt
#Engineering Excellence
Software Engineer
•
Behavioral
•
easy
Tell me about a time you mentored a junior engineer or helped a peer overcome a technical roadblock.
#Mentorship
#Teamwork
#Empathy
Software Engineer
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Behavioral
•
easy
Why do you want to join Swiggy? What specific engineering challenges in the food delivery or quick commerce space excite you?
#Motivation
#Domain Knowledge
#Company Fit
Software Engineer
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Coding
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hard
Write a program to assign N orders to M delivery executives such that the total wait time is minimized.
#Dynamic Programming
#Bipartite Matching
#Graphs
Software Engineer
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Coding
•
medium
Given an array of delivery intervals [start, end], merge all overlapping delivery windows to find the continuous busy periods for a delivery executive.
#Arrays
#Sorting
#Intervals
Software Engineer
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Coding
•
medium
Find the K closest delivery executives to a restaurant given an array of their [x, y] coordinates and the restaurant's location.
#Heaps
#Geometry
#Sorting
Software Engineer
•
Coding
•
hard
Calculate the minimum time required to deliver an order from a restaurant to a customer considering a city map represented as a weighted graph where edges are traffic delays.
#Graphs
#Dijkstra's Algorithm
#Shortest Path
Software Engineer
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Coding
•
medium
Implement an LRU Cache to store the most frequently accessed restaurant menus. It should support get() and put() operations in O(1) time.
#Design
#Hash Table
#Linked List
Software Engineer
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Coding
•
medium
Given a grid representing an Instamart warehouse where 0 is empty, 1 is fresh produce, and 2 is rotten produce, find the minimum minutes until all produce rots.
#Graphs
#Breadth-First Search
#Matrix
Software Engineer
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Coding
•
hard
Design a data structure to find the top K trending dishes in a specific geohash in real-time from a continuous stream of orders.
#Heaps
#Hash Table
#Stream Processing
Software Engineer
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Coding
•
medium
Find the maximum number of active orders in any sliding window of 'W' minutes given a stream of order timestamps.
#Sliding Window
#Queues
#Two Pointers
Software Engineer
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Coding
•
hard
Implement a trie-based autocomplete system for searching restaurant names and dishes that returns the top 3 matches based on historical search frequency.
#Trie
#Design
#Strings
Software Engineer
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Coding
•
medium
Given a matrix of 1s (serviceable areas) and 0s (unserviceable areas), find the number of distinct delivery zones (islands).
#Graphs
#Depth-First Search
#Matrix
Software Engineer
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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
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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
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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
•
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
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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 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 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 distributed logging and monitoring system for Swiggy's microservices architecture.
#Observability
#ELK Stack
#Distributed Tracing
Software Engineer
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System Design
•
hard
Machine Coding: Design the Low-Level Architecture for a Food Delivery App. Implement classes for User, Restaurant, Order, and Cart. Handle state transitions for an Order.
#Object Oriented Design
#State Pattern
#Low Level Design
Software Engineer
•
System Design
•
hard
Machine Coding: Design an in-memory message queue similar to Kafka with support for topics, publishers, and consumer groups.
#Concurrency
#Observer Pattern
#Low Level Design
Software Engineer
•
System Design
•
medium
Machine Coding: Design a Promo Code Evaluation Engine. Support different types of discounts (flat, percentage, max cap) and user-specific eligibility rules.
#Strategy Pattern
#Extensibility
#Low Level Design
Software Engineer
•
System Design
•
medium
Machine Coding: Design a Wallet System where users can add money, pay for orders, and receive refunds. Ensure thread safety for concurrent transactions.
#Concurrency
#Transactions
#Low Level Design
Software Engineer
•
System Design
•
medium
Machine Coding: Design a Rating and Review system where users can rate restaurants and delivery partners, and fetch the average rating efficiently.
#Data Modeling
#Caching
#Low Level Design
Software Engineer
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Technical
•
medium
How would you handle a race condition in a relational database when two concurrent transactions attempt to deduct the same inventory count?
#SQL
#Transactions
#Concurrency Control
Software Engineer
•
Technical
•
medium
Explain the internal working of ConcurrentHashMap in Java. How does it achieve thread safety without locking the entire map?
#Java
#Multithreading
#Data Structures
Software Engineer
•
Technical
•
medium
How does Kafka guarantee message ordering within a partition, and how would you handle out-of-order messages in a consumer?
#Kafka
#Distributed Systems
#Messaging
Software Engineer
•
Technical
•
medium
What is the difference between clustered and non-clustered indexes in MySQL? How does the InnoDB engine store them?
#SQL
#Indexing
#MySQL
Software Engineer
•
Technical
•
hard
Explain the Saga design pattern. How would you implement distributed transactions across the Order, Payment, and Restaurant microservices?
#Distributed Transactions
#Saga Pattern
#Event Sourcing
Software Engineer
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Technical
•
medium
How does Garbage Collection work in Java? Which GC would you choose for a low-latency microservice like Swiggy's pricing engine?
#Java
#Garbage Collection
#Performance Tuning
Software Engineer
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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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