The process took 4 weeks. I interviewed at Oracle (Seattle, WA) in Oct 2019
Interview
I reached out to hiring manager. He gave me initial call and he informed me about the product and overall interview process. Then I received a phone call interview invite. It was a 45min round where we programmed easy level leetcode question on coderpad. After that I received onsite interview invite. It was my 4th onsite interview and I cleared all 3 previous interviews. But this interview was the worst interview experience ever.
Onsite interview started with a leetcode question LRU Cache which I solved quickly on white board - interviewer was kind and we had a very good discussion on team and their project.
Second round of interview was a system design interview. The interviewer was very rash. He started laughing as soon as he entered the room. He gave me a question and asked me to use white board to explain. As soon as I started, he said sit down and changed his mind to ask me about some random sorting algorithm. I explained that and he started looking at my resume and started laughing again. I really didn't understand his behavior.
Third round was a lunch interview with hiring manager. He asked me about some behavioral questions and after lunch we sat together to answer some oracle values questions. He asked me to a leetcode question to find if a number is perfect square or not. Which I solved quickly on whiteboard. It was a good interview overall.
The last interview was again very disappointing. Interviewer was a senior software engineer. He gave me a simple array question. When iterating over array I incremented index like this 'index++' and as soon as I did that he started arguing with me saying this will increment index first and then reach to next index. Initially I thought he is trying to confuse me but later on it turned out that he didn't know. But he didn't agree to what I said. Anyways. Then he asked me to change arrays to list because list will give me O(1) look up but not arrays - this is what he said me during interview. I didn't know what to do there. I changed array to list, lol.
The last one was behavioral with a member of other team. It was a good interview with many behavioral questions.
Overall the interview process was very disappointing. If the interviewer lacks with the fundamentals it is very difficult to clear the interview as he will never listen to you.
I travelled to Seattle a month ago but still didn't receive my reimbursement.
Interview questions [1]
Question 1
LRU Cache
Find if the number is perfect square or not
Array based LC question - I don't remember exactly
Se divide en varias etapas, lo primero evalúan tu ingles, ya que es requisito para trabajar ahí, normalmente es solo una entrevista en ingles con preguntas sencillas, como cuál es tu actual trabajo, por qué quieres trabajar en Oracle, y normalmente es alguien de RH, después si pasas esa etapa viene la entrevista técnica en la que te preguntarán conceptos básicos, por ejemplo si es para java te preguntarán sobre herencia, polimorfismo, era entrevista puede ser en español o en ingles dependiendo si es alguien de aquí de México tu manager o si es del extranjero y posteriormente te pondrán problemas de algoritmos que tendrás que programar en el tiempo de la entrevista
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
