Crack Oracle's Software Engineer Interview: LRU Cache & Virus Scan Challenges

Software Engineering
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Oracle | Software Engineer | Interview Experience

Interview Date: Not specified
Result: Not specified
Difficulty: Not specified

Interview Process

The interview process consisted of four rounds. The recruiter provided details about what to expect in each round, including the interviewers’ LinkedIn profiles.

  1. First Round: Behavioral Questions (BQ) + LeetCode-style problems. The candidate was asked to output all possible combinations.
  2. Second Round: Behavioral Questions (BQ) + LeetCode-style problems. The focus was on analyzing from both sides.
  3. Third Round: Bar Raiser interview focused solely on Behavioral Questions (BQ).
  4. Fourth Round: Behavioral Questions (BQ) + System Design. The candidate was tasked with designing a file system that could scan for viruses.

The candidate was notified of their success on the second business day after the final interview.

Technical Questions

  1. LRU Cache (backtracking, combinations)
  2. Sliding Window Maximum (deque, sliding window)
  3. File System Virus Scan Design (system design, multithreading)

Tips & Insights

  • Be prepared for a mix of behavioral and technical questions.
  • Familiarize yourself with system design principles, especially for file systems.
  • Practice LeetCode problems focusing on combinations and sliding window techniques.