I applied online. I interviewed at Oracle (Hyderābād) in Jan 2011
Interview
1. First round was technical - Discussion on projects, java, unix shell scripting
2. Round is again technical - weblogic, webservice, jms, xml
3. Third round is manager round from US
4. Hr interview
Interview questions [1]
Question 1
Discussed about the project which i worked for
question on core java
Question on Unix shell scripting
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 June 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.