Condensed Placement Preparation Syllabus
System Design · Scalability · Databases · Caching · Interview Ready
A concise, placement-focused syllabus — covers every key concept without overloading.
Module 1
Module 2
Module 3
Module 4
Module 5
Module 6
Module 7
Learn recurring patterns, not one-off tricks — the fastest path to solving new problems.
Every module ends with an assessment or drill mapped to the way rounds are actually run.
Unlimited AI Tutor, Mock Interviews and Resume Review are included with your subscription.
A system design course built for interview conversations rather than architecture theory. It covers scalability basics, load balancing, caching layers and invalidation, database choice and sharding, replication and consistency trade-offs, message queues, rate limiting, CDNs and observability — each with the trade-off you are expected to state out loud.
The second half applies them to standard interview systems: URL shortener, news feed, chat application, file storage, ride-hailing, notification service. Every walkthrough follows the same frame — requirements, scale estimation, API design, data model, high-level diagram, bottlenecks, then failure handling.
System design questions reach freshers as 'how would you build X' in the final round, and they decide role and band as much as the coding rounds. Interviewers score reasoning about trade-offs, so a repeatable framework beats memorised diagrams.
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Often, in a lighter form — one system, fewer scale requirements, more focus on the data model and API. Startups and product companies ask it more than mass recruiters.
Use a fixed structure: clarify functional and non-functional requirements, estimate scale, sketch APIs and the data model, draw components, then discuss bottlenecks and trade-offs. Structure is what is being marked.
LLD first. It builds the object-oriented vocabulary and is asked earlier in most hiring processes.