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.
Solicité el puesto por otro medio. Acudí a una entrevista en Oracle en oct 2020
Entrevista
Two Phone Screens -
1 technical round that had leetcode medium problem and prior experience related questions.
1 Hiring Manager Screen.
5 rounds of virtual onsite
- 2 technical rounds that had leetcode easy problem and prior experience related questions.
- 2 behavioral rounds
- 1 round simple system design and prior experience related questions.
Preguntas de entrevista [1]
Pregunta 1
Leetcode Easy, Linux Commands, System Design Concepts, Behavioral
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
El proceso duró 4 semanas. Acudí a una entrevista en Oracle (Zúrich) en jun 2025
Entrevista
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.
Preguntas de entrevista [1]
Pregunta 1
Describe 3 different optimisations applied to LLM inference.
