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Prep/Companies/Rapido

Mobility · Bengaluru

R

Rapido.

A ride-hailing app for bike taxis, autos and cabs across many Indian cities, matching riders with captains in real time.

its questions lean on

geospatial matching
real-time location
microservices and data ownership
SQL vs NoSQL and indexing
mobile feed architecture

Reported by candidates

From public interview write-ups; each links its source.

Design an LRU CacheLow-level design
LLD-02 · Design an LRU Cache →reported in:Learn with Rashika (blog) · Rapido Interview Experience, On Campus (2023) ↗
Design a Server-Driven Video Feed for a Mobile AppSystem design
SQ-19 · YouTube Video Platform →W04 · DAY 04 · Feed Caching →reported in:LeetCode Discuss · Rapido Android Developer (2022) ↗
How do you send a push notification to one specific device?Concept
W06 · DAY 02 · The Delivery Pipeline: Guarantees, Priorities and Preferences →IP-06 · Design a Notification System →reported in:LeetCode Discuss · Rapido Android Developer (2022) ↗
Monolith or microservices, and should each microservice own its database?Concept
W00 · PART 1 · System Design Fundamentals →W03 · DAY 02 · Transactional Outbox →reported in:GeeksforGeeks · Rapido Interview Experience for SDE-2, Off-Campus (2023) ↗
What is horizontal versus vertical scaling?Concept
W00 · PART 1 · System Design Fundamentals →W10 · DAY 04 · Capacity Planning →reported in:GeeksforGeeks · Rapido Interview Experience for SDE-2, Off-Campus (2023) ↗
SQL or NoSQL, and when does an index not help?Concept
W00 · PART 2 · Infrastructure Building Blocks →W00 · PART 6 · System Design Terminology & Theory →reported in:GeeksforGeeks · Rapido Interview Experience for SDE-2, Off-Campus (2023) ↗

Likely, from what they build

Our pick, not a report: questions that fit Rapido's products.

Design a Ride-Hailing ServiceSystem design
SQ-09 · Uber →IP-13 · Design a Proximity Service →
Design a Proximity ServiceSystem design
IP-13 · Design a Proximity Service →W01 · DAY 04 · Hot Keys and Skew →
Design Live Captain Location Tracking and ETASystem design
SQ-09 · Uber →W08 · DAY 01 · Event Ingestion at Scale →W03 · DAY 03 · Backpressure and Flow Control →
Design a Surge Pricing EngineSystem design
W08 · DAY 02 · Streaming vs Batch Processing →SQ-09 · Uber →
Design a Captain Wallet and Daily PayoutsSystem design
IP-20 · Design a Payment System →W02 · DAY 02 · Idempotency in Practice →W03 · DAY 05 · Audit Log System →
Design a Cab Booking App (LLD)Low-level design
SQ-09 · Uber →

Study path

Every lesson the questions above point to, once, in order.

01LLD-02Design an LRU Cache
02SQ-19YouTube Video Platform
03W04 · DAY 04Feed Caching
04W06 · DAY 02The Delivery Pipeline: Guarantees, Priorities and Preferences
05IP-06Design a Notification System
06W00 · PART 1System Design Fundamentals
07W03 · DAY 02Transactional Outbox
08W10 · DAY 04Capacity Planning
09W00 · PART 2Infrastructure Building Blocks
10W00 · PART 6System Design Terminology & Theory
11SQ-09Uber
12IP-13Design a Proximity Service
13W01 · DAY 04Hot Keys and Skew
14W08 · DAY 01Event Ingestion at Scale
15W03 · DAY 03Backpressure and Flow Control
16W08 · DAY 02Streaming vs Batch Processing
17IP-20Design a Payment System
18W02 · DAY 02Idempotency in Practice
19W03 · DAY 05Audit Log System

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