I applied through a recruiter. The process took 1 week. I interviewed at Oracle (Bengaluru) in Nov 2024
Interview
Total 4 rounds
1. Technical Screening
Asked overall experience skills, challenges
2. Data Structure and Algorithm Round
Two Medium level Leetcode question (HashMap, Math, Graph, DP)
3. System Design Round
Design video streaming platform and scale it for million users
4. Behavioral Round
Interview questions [1]
Question 1
How will you handle situation which requires immediate action, either you wait for the superior response or will you try to solve it by yourself then inform the superior ?
Technical Prep: Data Structures & Algorithms (DSA)
Oracle commonly asks Easy to Medium-level questions on HackerRank, focusing on efficiency and code quality.
Key Topics: Arrays, Strings, HashMaps, Linked Lists, Binary Trees, and Graphs.
Common Problems: Inverting a binary tree, merging sorted arrays, and finding the first non-repeating character in a string.
Focus: Practice communicating your thought process out loud ("think out loud") and optimizing for both time and space complexity.
1st round elimination.
4 rounds of loop interview.
Loop rounds- 1 DSA Hard
HLD
LLD
Bar Raiser round.
Interview experience was average. First interviewer was not supportive in DSA. In spite of giving 3 solutions, he wanted to hear one that he had predetermined
The process took 4 weeks. I interviewed at Oracle (Zúrich) in Jun 2025
Interview
Was for a position at one of their labs and took a bit under a month.
1. Screening call with HR with basic behavioural/experience question.
2. 2x technical interviews (LLMs, parallelism, databases, etc) with coding components.
3. Hiring manager interview (behavioural, technical).
Overall the interviewers were timely, pleasant and reasonable. Often they asked questions about many different areas and went more in depth based on my experience.
Interview questions [1]
Question 1
Describe 3 different optimisations applied to LLM inference.