System design

Salesforce System Design Questions

Every system design problem candidates reported at Salesforce between September 2025 and September 2026, most-asked first. Each one links to a full solution. Tick them off as you go.

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15problems
17candidate reports
2asked more than once
24topics
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Companies

Meta26Microsoft24Amazon23OpenAI22Google20TikTok16Salesforce15Anthropic15Uber12LinkedIn11Apple11JPMorgan11Atlassian11Snowflake9Netflix9Oracle9Goldman Sachs8Rippling8Databricks7Walmart7Airbnb7Capital One7NVIDIA6Pinterest6Roblox6Flipkart4Bloomberg4Visa4Adobe4Anduril1

Topics

Design a scalable coffee ordering notification system
2 reports · last seen Feb 2026E-commerceReal-timeAPI Design
Beginner▶ Mock
Design an analytics dashboard for an AI chat app
2 reports · last seen Jan 2026AnalyticsAI / MLData Pipelines
Intermediate▶ Mock
Track Top-K Frequent Elements from an Unbounded Stream
1 report · last seen Aug 2026AnalyticsReal-timeAlgorithms
Advanced+4▶ Mock
Design an Idempotent Payment Processing Platform
1 report · last seen Aug 2026PaymentsFintechDistributed Systems
Advanced+1▶ Mock
Design a Scalable Notification Service
1 report · last seen Aug 2026Real-timeMessagingDistributed Systems
Advanced+5▶ Mock
Design a Venue Rental and Booking System (HLD)
1 report · last seen Jun 2026Distributed SystemsPaymentsBooking System
Beginner+3▶ Mock
Design a Multi-Tenant Enterprise Messaging System
1 report · last seen Apr 2026Real-timeMessagingDistributed Systems
Advanced+5▶ Mock
Design a TikTok-like short video platform
1 report · last seen Mar 2026Media StreamingCDNStorage
Advanced▶ Mock
Design a configurable monthly API rate limiter
1 report · last seen Feb 2026Rate LimitingDistributed SystemsAPI Design
Intermediate+9▶ Mock
Design a pipeline orchestration system on Kubernetes
1 report · last seen Feb 2026SchedulingDistributed SystemsEvent Driven
Advanced+7▶ Mock
Design a file sync and sharing service
1 report · last seen Jan 2026StorageCDNDistributed Systems
Advanced▶ Mock
Design a Concurrent Car Reservation Service
1 report · last seen Jan 2026Booking SystemDatabasesConcurrency
Intermediate▶ Mock
Design a Multi-Vendor Integration Platform
1 report · last seen Jan 2026API DesignSecurityEvent Driven
Intermediate▶ Mock
Design a collaborative spreadsheet backend
1 report · last seen Jan 2026CollaborationReal-timeDistributed Systems
Advanced▶ Mock
Design a 911 emergency calling service
1 report · last seen Oct 2025Real-timeDistributed SystemsGeospatial
Advanced▶ Mock

Duplicate reports of the same problem are merged and counted.

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Frequently Asked Questions

What system design questions does Salesforce ask?

Candidates reported 15 distinct system design problems at Salesforce between September 2025 and September 2026, including Design a scalable coffee ordering notification system, Design an analytics dashboard for an AI chat app, Track Top-K Frequent Elements from an Unbounded Stream.

How to prepare for Salesforce system design interview?

Start with the Salesforce problems reported most often, work through each full solution, then practice explaining a design end to end under time pressure in a mock interview.

What is the difference between HLD and LLD at Salesforce?

HLD (High-Level Design) focuses on system architecture, scalability, and component interactions. LLD (Low-Level Design) dives into class diagrams, API contracts, and database schemas. Salesforce tests both.