Senior Member of Technical Staff (IC3) at Oracle

How it went

What they would tell you

How to prepare

Round by round

1. 1

   Technical Coding Round 160 min

   Problem: Given an array showing the daily price of a product and a limited number of discount vouchers, apply these vouchers optimally to minimize your total purchase cost. For example, you can buy on any number of days, but each voucher can only be used once. You want to minimize your total spending by strategically using your vouchers on the cheapest days. Approach: This is a greedy problem, use a priority queue (heap) to always apply the next voucher to the smallest remaining price.

   • Greedy based
2. 2

   System Design60 min

   After clearing the technical coding round, after 4 day system design ,I was asked to design a Distributed Rate Limiter Key requirements:

   • Handle requests per second across regions.
   • Allow per-client, per-endpoint, and global rate limits.
3. 3

   Behavioral Interview60 min

   Describe a time you made a tough technical decision under tight deadlines. Tell me about a project where you led a team with conflicting priorities. Explain a professional failure or mistake and what you learned from it.

4. 4

   Technical Coding Round 260 min

   Most Recently Used (MRU) cache.

   • get(key) retrieves the value associated with the key.
   • put(key, value) stores or updates the value.
   • If the cache is full, evict the most recently used item.
   • All operations must be O(1) average time.

What came up