Swiggy Interview Prep

Swiggy’s interview process for SDE-2+ follows the Indian product company template: DSA, machine coding (90 min), system design, and HM round. The machine coding round is the biggest filter - candidates are expected to produce clean, extensible code with design patterns in 90 minutes. System design focuses on food-delivery-adjacent problems: dispatch, real-time tracking, and high-throughput event processing.

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HLD Problems Asked at Swiggy

#	Problem	Difficulty	Link
1	Zomato / Uber Eats (Food Delivery)	Advanced	Read →
2	Notification System	Intermediate	Read →
3	Rate Limiter	Beginner	Read →
4	Distributed Job Scheduler	Advanced	Read →
5	Uber / Lyft (Ride Sharing)	Advanced	Read →

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LLD Problems Asked at Swiggy

#	Problem	Difficulty	Link
1	Parking Lot	Beginner	Read →
2	Splitwise	Intermediate	Read →
3	Snake and Ladder	Intermediate	Read →

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DSA Problems Frequently Asked at Swiggy

#	Problem	Pattern	Link
1	Two Sum	HashMap	Solve →
2	Merge Intervals	Sorting + Greedy	Solve →
3	Longest Substring Without Repeating	Sliding Window	Solve →
4	LRU Cache	HashMap + DLL	Solve →
5	Rotting Oranges	BFS on Grid	Solve →
6	Coin Change	DP	Solve →
7	Kth Largest Element	Quick Select / Heap	Solve →
8	Binary Tree Zigzag Level Order	BFS	LeetCode →
9	Next Greater Element	Monotonic Stack	LeetCode →
10	Trapping Rain Water	Two Pointers / Stack	Solve →

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Tips for Swiggy Interviews

1. Machine coding is make-or-break. Swiggy eliminates most candidates here. Practice writing full OOP solutions with Strategy/Observer patterns in 90 minutes. Working main() with output matters more than perfect coverage.
2. Think about delivery logistics. Swiggy’s core is dispatch and routing - show awareness of geo-queries, rider assignment, and order state machines in system design.
3. Expect follow-ups on real-time. “How does the customer see the rider moving?” is a guaranteed follow-up. Know WebSocket vs SSE, and how location pings flow through the system.
4. DSA is medium difficulty. Swiggy’s coding rounds are LeetCode medium - focus on clean implementation and edge case handling over exotic algorithms.

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