I applied through college or university. The process took 3 weeks. I interviewed at Oracle (Ciudad de Mexico) in Mar 2017
Interview
The screening interview was done in the offices at Mexico city. The person that made the interview asked me about my master's degree thesis, and about the courses that I took during my graduate studies. Also he told me about the project he did.
The second interview was made with a webcam and with a phone conference. There was a manager from the U.S. and two people from the team where I would work in case of getting an offer. The first part was about a coding problem (1 hour) and the second part was about a machine learning problem (1 hour).
Interview questions [1]
Question 1
You have a rectangular keyboard with letters A to Z, ordered sequentially from left to right and up to down, but the number of columns is given by number N. Given N and a string S, print the actions that you have to make in order to type the string S. The available actions are U (up),D (down),L (left),R(right) and Enter.
1 technical phone screen covering basic networking and data structures, followed by a 4-round onsite loop focused heavily on Oracle Cloud Infrastructure (OCI) scale challenges. The rounds were split between low-level system execution, multi-tenant cloud architecture, and standard relational/non-relational database trade-offs. The interviewers kept drilling into network virtualization, hypervisors, and storage layers.
To prep, I needed to brush up on high-throughput cloud networking patterns and storage engine internals. I utilized Apex Interviewer to simulate full cloud infrastructure design problems.
Interview questions [1]
Question 1
Design a highly secure, multi-tenant virtual cloud network block storage migration system that allows live volume transfers between physical data centers without dropping active I/O operations.
Mostly coding question focused, and some talking about personal experience and terms. Some technical design, you could have chosen any language to complete the coding questions. Questions were simple technical concepts that person came up with at the moment.
Interview questions [1]
Question 1
Something like searching in logs using maps and filter/find data
decent amount of DSA and System design were asked, and behavioral questions. so prepare leetcode level questions and good amount knowledge in sql, java and also mostly oracle sql. overall it was good
