Software Development Engineer 1
Collision Handling in HashMap
How are hash collisions handled in a HashMap? Explain techniques such as chaining (linked list / balanced tree) and open addressing.
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Blinkit Software Development Engineer 1 Interview Experience
The Blinkit interview process consisted of three comprehensive rounds evaluating problem solving, high-level system design, and cultural alignment. Round 1 focused on data structures, algorithmic coding, and core CS fundamentals. Round 2 deeply evaluated system design skills through designing a scalable promo code engine alongside distributed systems and database concepts, while Round 3 covered behavioral questions, project architecture, and messaging tradeoffs. Overall, the interview was moderately difficult with an emphasis on production systems, distributed caching, and practical engineering trade-offs.