Swiggy Redis Interview Questions 2026
Published July 22, 2026 · Updated July 22, 2026
6 real Redis interview questions asked at Swiggy. Upvoted by engineers who cleared the loop. Covers System Design, Technical rounds.
6 questions
241 engineers asked
325 upvotes
Company: Swiggy
Technology: Redis
All Redis Questions Asked at Swiggy
Swiggy
Hard
System Design round
KafkaRedisAWS
Design Swiggy's real-time order tracking system. A customer should see their delivery agent's location update every 5 seconds on a map.
Cover: location ingestion from agents, WebSocket vs SSE for pushing updates to clients, data store choices, and how you scale to 100k concurrent orders during peak hours.
↑ 63 upvotes · 62 engineers asked this · SDE2
Swiggy
Hard
System Design round
ElasticsearchRedisDistributed Systems
Design Swiggy's restaurant search and ranking system.
How do you index 200k restaurants? Discuss full-text search (Elasticsearch), geospatial filtering, personalised ranking signals (past orders, ratings, delivery time), and how to refresh the index when a restaurant updates its menu.
↑ 51 upvotes · 48 engineers asked this · SDE2
Swiggy
Hard
System Design round
RedisKafkaDistributed Systems
Design Swiggy's delivery partner assignment algorithm. When an order is placed, how do you assign the optimal nearby delivery partner within 2 minutes considering distance, current load, and restaurant prep time?
↑ 61 upvotes · 40 engineers asked this · SDE2
Swiggy
Medium
Technical round
RedisJavaPython
Implement a rate limiter for Swiggy's API gateway using the token bucket algorithm. Handle 1000 requests/second per user. Code the solution and explain how you'd deploy it across multiple API servers with Redis.
↑ 49 upvotes · 30 engineers asked this · SDE1
Swiggy
Hard
System Design round
KafkaRedisAWS
Design Swiggy's notification system. When an order status changes (Confirmed, Picked Up, Arriving), send push notification, SMS, and in-app notification reliably with at-least-once delivery. Cover fan-out and handling inactive devices.
↑ 53 upvotes · 33 engineers asked this · SDE2
Swiggy
Medium
Technical round
PostgreSQLRedisJava
Design the data model for Swiggy's menu system. A restaurant has categories, items, add-ons, variants, and availability windows (breakfast/lunch/dinner). How do you model this in PostgreSQL and handle real-time menu updates?
↑ 48 upvotes · 28 engineers asked this · SDE2
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Design Swiggy's real-time order tracking system. A customer should see their delivery agent's location update every 5 seconds on a map.
Design Swiggy's real-time order tracking system. A customer should see their delivery agent's location update every 5 seconds on a map.
Cover: location ingestion from agents, WebSocket vs SSE for pushing updates to clients, data store choices, and how you scale to 100k concurrent orders during peak hours.
Design Swiggy's restaurant search and ranking system.
Design Swiggy's restaurant search and ranking system.
How do you index 200k restaurants? Discuss full-text search (Elasticsearch), geospatial filtering, personalised ranking signals (past orders, ratings, delivery time), and how to refresh the index when a restaurant updates its menu.
Design Swiggy's delivery partner assignment algorithm. When an order is placed, how do you assign the optimal nearby delivery partner within 2 minutes considering distance, current load, and restaurant prep time?
Design Swiggy's delivery partner assignment algorithm. When an order is placed, how do you assign the optimal nearby delivery partner within 2 minutes considering distance, current load, and restaurant prep time?
Implement a rate limiter for Swiggy's API gateway using the token bucket algorithm. Handle 1000 requests/second per user. Code the solution and explain how you'd deploy it across multiple API servers with Redis.
Implement a rate limiter for Swiggy's API gateway using the token bucket algorithm. Handle 1000 requests/second per user. Code the solution and explain how you'd deploy it across multiple API servers with Redis.
Design Swiggy's notification system. When an order status changes (Confirmed, Picked Up, Arriving), send push notification, SMS, and in-app notification reliably with at-least-once delivery. Cover fan-out and handling inactive devices.
Design Swiggy's notification system. When an order status changes (Confirmed, Picked Up, Arriving), send push notification, SMS, and in-app notification reliably with at-least-once delivery. Cover fan-out and handling inactive devices.
Design the data model for Swiggy's menu system. A restaurant has categories, items, add-ons, variants, and availability windows (breakfast/lunch/dinner). How do you model this in PostgreSQL and handle real-time menu updates?
Design the data model for Swiggy's menu system. A restaurant has categories, items, add-ons, variants, and availability windows (breakfast/lunch/dinner). How do you model this in PostgreSQL and handle real-time menu updates?