Interview Experience

Recently went through a multi-round interview process of JioHotstar. Sharing a brief round-wise summary.

R1: DSA [1 Hr]

• Dijkstra-based graph problem (medium–hard)
• Monotonic stack based problem (medium–hard)
• Focus on optimisation and edge cases
• Follow-up questions based on my resume and past projects

R2: LLD [1 Hr]

• Designed a cache library
• Implemented LRU cache
• Discussion extended to LFU and eviction strategies
• Strategy pattern was expected

R3: Bar Raiser[1 Hr]

• Designed a ticket booking system like BookMyShow
• Deep dive into payments, locking, and concurrency
• Handling millions of requests during popular events (e.g. Coldplay)
• Race conditions in single-seat booking

R4: Hiring Manager / Cultural Fit [1 Hr]

• Resume-based discussion
• Scenario questions on conflicts, product decisions, and production debugging
• Improving existing code and learnings from past projects

Overall:
Strong DSA basics, clean LLD, good understanding of concurrency, and clear communication are key.

Verdict

• Selected (was informed next day)

Compensation Details: https://leetcode.com/discuss/post/7529982/jiohotstar-software-development-engineer-6uz4/