Top 30 System Design Interview Questions
The most frequently asked questions on this topic across all roles and companies, ranked by real interview frequency. Updated weekly.
Design a production ranking system with robust feature drift monitoring across batch and real-time features at high QPS.
Alpaca
Meta
DevoteamDesign a shared feature store for training and low-latency inference across many ML systems with strict freshness and consistency needs.
Hewlett Packard Enterprise
InvocaDesign an end-to-end product recommendation system for a large e-commerce marketplace with strict latency and freshness needs.
Alcatel-Lucent Motive
Candescent
Frontier TechnologyDesign a URL shortening service that routes, ranks, and monitors links at scale.
Amazon DSP
Applied Intuition
Dover IndiaDesign an LLM serving system that balances latency, cost, scalability, and safety for production traffic.
Bell
Actian
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Design a cloud ML deployment system for a security product, covering training, serving, updates, and production monitoring.
American Association Of Motor Vehicles
Booking
SpectraforceDesign a personalized recommendation system that turns user preferences into ranked suggestions with retrieval, ranking, and feedback loops.
G-TECH Services
Fujitsu
NeenOpalDesign a distributed ML serving platform that stays available and scales under failures, traffic spikes, and model updates.
Global Payment HoldingDDistrict by Zomato