Oracle DBaaS | Senior Software Developer | Bengaluru

Status: IN3, Walmart Global Tech, Bengaluru - 6yrs overall experience
Position: Senior Software Developer at Oracle
Location: Bengaluru, India
Date: Dec, 2023

Round 1:

Introduction:

The interviewer asked about my current work, reasons for wanting to switch jobs, and the team I worked in at Oracle.
The interviewer thoroughly read my resume and asked about various areas

Topics Discussed:

Kafka:

Explained the architecture.
Discussed the message queues used and why we didn't use a standard message queue.
Described the use case of Kafka in my application.
Shared a scenario where I had to debug issues with missing messages in Kafka.

Java:

Discussed the version of Java I am using.
Talked about streams and filters.
Mentioned the features of Java 11 I have used.
Explained the use of data structures like binary trees for code optimization.
Described my experience with multithreading and the thread lifecycle.

Authorization Module:

Explained the working of the authorization module, token generation, and validation.

Camunda Workflows:

Described how Camunda workflows function and interact with the code.

Performance Optimizations:

Discussed any performance optimizations I have made in the application.
CICD Framework and Cloud Usage:
Briefly talked about my work in the CICD framework and the cloud used (no in-depth questions).

DSA Question:

Initially, the interviewer thought I wasn't familiar with data structures, but I clarified my understanding.
Question: Word Break II
The interviewer wasn't focused on me coding the solution but on explaining my approach.
He hinted that the problem could be solved using backtracking.
I explained my approach and discussed the time and space complexity.

Verdict :

I tried calling the HR multiple times, no response