Google System Design Interview
HLD · LLD · Distributed Systems · Architecture · Scalability
How to Crack Google System Design Interview
Google system design interviews assess your ability to design scalable, reliable, and maintainable systems. Interviewers look for clear communication, structured thinking, and awareness of trade-offs.
Key areas to focus on:
- High Level Design (HLD) — overall architecture and component interactions
- Low Level Design (LLD) — class diagrams, APIs, data models
- Scalability — horizontal/vertical scaling, sharding, partitioning
- Reliability — replication, failover, consistency vs. availability
- Caching strategies — Redis, CDN, write-through vs. write-behind
- Database design — SQL vs. NoSQL, indexing, query optimization
Common Google System Design Topics
Google System Design Experiences
Google System Design Interview FAQs
Does Google have a system design round?
Yes, Google typically includes system design rounds for senior engineering roles. This covers High Level Design (HLD), Low Level Design (LLD), scalability, and distributed systems concepts.
What system design topics does Google ask?
Google system design interviews typically cover distributed systems, database design, caching strategies, API design, load balancing, microservices architecture, and scalability patterns.
How to prepare for Google system design interview?
Practice designing scalable systems like URL shorteners, social media feeds, and payment systems. Focus on trade-offs between consistency and availability, caching, and database sharding strategies.