After clearing OA for dev role having 4 programming questions, 2 easy and 2 hard questions. First round interview basic C programming questions and CS fundamentals. Second round DSA questions, they will ask brute force and further optimisations.
I applied online. I interviewed at Zscaler (Bengaluru) in Dec 2025
Interview
Round 1: Resume Shortlisting
Round 2: Technical Interview (easy-medium DSA + CS fundamentals)
Round 3: HR Round (resume based discussion + cultural fit check)
The whole interview process is smooth and the HR will always be in touch with you throughout the process.
Interview questions [1]
Question 1
In Technical Interview, they asked me to implement Linked List from scratch using OOP principles
