Swiggy
SDE 2 Frontend
Swiggy interviews are machine-coding heavy with strong emphasis on React patterns, WebSocket/real-time, and virtualization. Expect practical, production-like coding challenges.
36
Total Topics
19
Ready to Study
4
Interview Rounds
30L–45L
Package Range
💡 Swiggy-Specific Tips
- • Machine coding is the heaviest round — practice building complete components in 60 min
- • Virtualization is a hot topic — infinite scroll with 10k+ items, virtual lists
- • WebSocket patterns are frequently asked — live order tracking, notifications
- • React patterns matter — know when to use refs, portals, compound components
- • Think mobile-first — Swiggy is primarily a mobile app, responsive design matters
Priority:Must Know (asked 80%+)Frequently Asked (40–60%)Good to Know
Round 1
90 min • 2–3 problemsOnline Assessment
HackerRank-style OA with JavaScript problems, DOM manipulation, and one DSA problem.
📖Closures & Scope Chain
Must Know→
📖Promises & Async/Await
Must Know→
📖Polyfills (bind, Promise.all, etc.)
Must Know→
💻Two Sum (HashMap pattern)
Must Know→
🏢Infinite Scroll implementation
Swiggy-specificMust Knowsoon
💻Debounce / Throttle from scratch
Must Knowsoon
💻DOM manipulation (vanilla JS)
Frequently Askedsoon
💻Maximum Subarray
Frequently Asked→
5/8 topics available • 6 must-know
Round 2
60 min • Discussion + CodeJavaScript + Framework Deep Dive
WebSocket patterns, virtualization, and advanced React. Live coding with conceptual discussion.
📖JavaScript Runtime & Event Loop
Must Know→
📖Execution Context & Hoisting
Must Know→
📖React Reconciliation & Diffing
Must Know→
📖Custom Hooks Patterns
Must Know→
🏢WebSocket connection management
Swiggy-specificMust Knowsoon
🏢Virtual scrolling / Windowing
Swiggy-specificMust Knowsoon
📖Service Workers & Caching
Frequently Asked→
📖Code Splitting & Lazy Loading
Frequently Asked→
📖State Management
Frequently Asked→
7/9 topics available • 6 must-know
Round 3
75–90 min • Build complete componentMachine Coding (React)
Build a production-quality React component. Swiggy expects proper state management, error handling, and responsive design.
📖Machine Coding Fundamentals
Must Know→
🏢Restaurant Listing App (search + filters)
Swiggy-specificMust Knowsoon
🏢Infinite Scroll with API pagination
Swiggy-specificMust Knowsoon
🏢Live Order Tracking Component
Swiggy-specificMust Knowsoon
🏢Cart with add/remove/quantity
Swiggy-specificFrequently Askedsoon
💻Multi-filter sidebar (price, cuisine, rating)
Frequently Askedsoon
💻Accordion menu (nested categories)
Frequently Askedsoon
💻Star rating with half-star support
Good to Knowsoon
1/8 topics available • 4 must-know
Round 4
45–60 min • WhiteboardFrontend System Design
Design scalable frontend for food-delivery scenarios. Real-time tracking, search, and high-traffic handling.
📖System Design Interview Formats
Must Know→
📖Client-Server Interaction Patterns
Must Know→
🏢Design Swiggy Home (restaurant discovery + geo)
Swiggy-specificMust Knowsoon
🏢Design Live Delivery Tracker
Swiggy-specificMust Knowsoon
💻Design Search with autocomplete + filters
Frequently Askedsoon
🏢Handling offline state in ordering flow
Swiggy-specificFrequently Askedsoon
💻Push notifications architecture
Good to Knowsoon
2/7 topics available • 4 must-know
Bonus
Behavioural Preparation
Prepare STAR-format answers for behavioural themes commonly asked at Swiggy.
See How Others Cracked It
Read real interview questions, solutions, and what interviewers were looking for — from candidates who got the Swiggy offer.
Read Swiggy Interview Experience →