I applied online. The process took 3 weeks. I interviewed at Oracle (Guadalajara, Jalisco) in Nov 2024
Interview
El proceso consiste de lo siguiente:
1.- Entrevista con RH
2.- Entrevista con manager.
3.- Entrevistas técnicas (3 en total).
4.- Oferta.
El proceso completo puede tomar alrededor de 3 semanas y para ingresar a Oracle puede durar de 2 a 3 semanas mientras se completa proceso de background check.
Interview questions [1]
Question 1
Ejercicios de nivel fácil y medio, preguntas relacionadas a estructuras de datos, Big O, algoritmos, etc.
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 (Zürich) 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.