Low-Level Design Interview Prep
Intermediate to Advanced
Build the OOP, SOLID, design-pattern, and machine-coding muscles needed for LLD interviews.
Intermediate to Advanced· 3 Topics· 611 Resources· Updated Jun 28, 2026
1
Beginner OOP Foundations
Not StartedRecommended prerequisiteRefresh OOP, SOLID, DDD, and Java design fundamentals before coding systems.
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2
Classic LLD Exercises
Not StartedDesign common interview systems such as LRU cache, URL shortener, parking lot, elevator, and vending machine.
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Concurrency & In-Memory Systems
Not StartedHandle concurrent access, pub-sub queues, and thread-safe in-memory designs.
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