What is Swiggy's machine-coding round?

A 2–3 hour round where you build a working, runnable feature end to end (like a Splitwise or a Snake & Ladder). It is graded on SOLID principles, clean OOP, readability, low-level DB design, correctness, and unit-test coverage — design quality over algorithmic trickery.

Does Swiggy ask high-level system design for new grads?

HLD is more prominent for SDE-2/3 and experienced candidates; for SDE-1 / new grad it is lighter. LLD (design patterns, extensible class design) is expected across levels.

How hard is Swiggy's DSA?

Primarily LeetCode-medium — arrays, linked lists, trees, hash maps, graphs, sorting and searching — with time/space-complexity analysis expected. Backend roles add API/system-flavoured questions.

What design patterns should I know for Swiggy?

Factory, Strategy, State, Decorator, and Singleton, plus SOLID principles and interface segregation — the LLD and machine-coding rounds reward clean, pattern-appropriate, extensible class design.

Swiggy Software Engineer (SDE) Interview

A DSA screen, a signature 2–3 hour machine-coding (LLD) build, an LLD + HLD design round, and a hiring-manager round.

Product company India Web-verified 2026-07

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The Swiggy interview, in brief

Swiggy is an India food-tech / quick-commerce unicorn hiring into SDE-1/2/3 bands, with a process that resembles the Flipkart-style Indian product-company loop: strong DSA screening, a distinctive 2–3 hour machine-coding / low-level-design round, a combined LLD + HLD design round, and a hiring-manager round. It puts heavy emphasis on clean, extensible object-oriented code (SOLID, design patterns) alongside algorithms.

An online DSA assessment (PSDS) is followed by the machine-coding round — a runnable, end-to-end build graded on SOLID, OOP, readability, low-level DB design, and unit tests — then a combined LLD + HLD design round with a senior engineer, and a hiring-manager round covering the project, messaging systems, and ownership.

Interview rounds

1. Online assessment (PSDS) HackerRank/HackerEarth

DSA problems (roughly LeetCode-medium), with complexity analysis; backend roles add an API/response question.
2. Machine coding (LLD) ~2–3 hours

Build a working, runnable feature end to end — graded on SOLID, OOP, readability, correctness, low-level DB design, and unit tests.
3. LLD + HLD design round With a senior engineer

LLD (design patterns, class modelling, interface segregation) and HLD (a scalable Swiggy-style feature: API, DB schema, resiliency, scaling), often with a code review.
4. Hiring manager round Behavioural + depth

Tech-stack overview, project and current-role deep-dive, messaging (Kafka/RabbitMQ), entity design, and ownership.

Coding & DSA topics

Arrays & linked listsTreesHash mapsStacks & queuesGraphsSorting & searchingComplexity analysisAPI / backend modelling

System design

Machine coding is the defining round — a timed, runnable build (a Splitwise, a Snake & Ladder, a calendar/meeting scheduler, a CRUD app with ranking) stressing OO design quality over algorithmic trickery. LLD (design patterns, extensible class design) is expected across levels; HLD (scalable architecture, API + DB schema, resiliency/failover for Swiggy-scale features) is more prominent for SDE-2/3 and lighter for SDE-1.

Behavioural round

The hiring-manager round centres on ownership, impact, project depth, decision-making, and culture fit rather than a named leadership-principles rubric. STAR structure is recommended for experience and behavioural questions.

Representative question categories

Patterns in Swiggy’s style — not verbatim proprietary questions.

Machine coding builds — Splitwise, Snake & Ladder, a calendar/meeting scheduler, or a CRUD app with ranking.
LLD with design patterns — Model a ride-hailing app using State/Strategy/Factory and interface segregation.
Core DSA — Arrays, trees, hash maps, graph traversal, sorting/searching (LeetCode-medium).
Backend / API design — Model an API response and DB schema for a food-delivery feature.
HLD (SDE-2/3) — Design a Swiggy Instamart-style feature: caching, DB modelling, resiliency, failover, scaling.
Hiring manager — Kafka vs RabbitMQ trade-offs; entity design; project ownership and hard decisions.

How to prepare

Do

Practise machine coding: build Splitwise, Snake & Ladder, and scheduler apps as clean, extensible OOP with unit tests.
Know your design patterns (Factory, Strategy, State, Decorator) and interface segregation cold.
For SDE-2/3 HLD, be ready to reason about caching, DB schema, resiliency, and failover.
Prepare Kafka-vs-RabbitMQ trade-offs and an entity-design example for the hiring-manager round.

Avoid

A machine-coding solution that works but is a tangled, unextensible class model.
Skipping unit tests / input validation in the LLD build.
Vague ownership in the hiring-manager round.

Who can apply

SDE-1 (new grad / early-career) through SDE-2/SDE-3 (experienced). Primarily an India-based process (Bengaluru HQ), on-campus and off-campus; higher levels weight LLD/HLD and machine coding more heavily. Both backend and frontend tracks exist.

Swiggy interview FAQ

What is Swiggy's machine-coding round?: A 2–3 hour round where you build a working, runnable feature end to end (like a Splitwise or a Snake & Ladder). It is graded on SOLID principles, clean OOP, readability, low-level DB design, correctness, and unit-test coverage — design quality over algorithmic trickery.
Does Swiggy ask high-level system design for new grads?: HLD is more prominent for SDE-2/3 and experienced candidates; for SDE-1 / new grad it is lighter. LLD (design patterns, extensible class design) is expected across levels.
How hard is Swiggy's DSA?: Primarily LeetCode-medium — arrays, linked lists, trees, hash maps, graphs, sorting and searching — with time/space-complexity analysis expected. Backend roles add API/system-flavoured questions.
What design patterns should I know for Swiggy?: Factory, Strategy, State, Decorator, and Singleton, plus SOLID principles and interface segregation — the LLD and machine-coding rounds reward clean, pattern-appropriate, extensible class design.

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Wrexa Edge is an independent exam-prep platform and is not affiliated with, authorised by, or endorsed by Swiggy. This guide is based on publicly documented interview practice; it does not reproduce any employer’s internal rubric or question bank, and it does not predict a hiring outcome.