Personal Infosys DSE role interview experience
Summary
Interview process included a written coding round and a technical interview focusing on coding solutions, resume-based questions, and core CS concepts.
Full Experience
I attended an interview process for the Infosys DSE role on 9 May 2026, and I’m sharing a reworked version of my experience for informational purposes.
The process began with all shortlisted candidates being seated in a supervised room setting. Small groups of around 10 candidates were accommodated at a time, with proper spacing to maintain fairness during the written assessment.
Written Coding Round
Candidates were given approximately 15 minutes to solve two programming problems using pen and paper. The focus was clearly on writing efficient, optimized solutions.
Problems included:
- Shift all zero values in an array to one side (direction unspecified).
- Determine the second-largest element in an array.
Once completed, answer sheets were collected based on submission order, and technical interviews followed individually.
Technical Interview Round
Each interview lasted roughly 10 minutes.
In my case, the discussion started directly with my coding solutions rather than a personal introduction. I was asked to explain my logic and approach for both problems.
Resume-Based Questions
The interviewer then reviewed the technologies listed on my resume and asked fundamental questions related to them:
- Frontend / Web Development:
- React basics
- Strategies for improving website performance
- Authentication / Security:
- Basic understanding of OAuth 2.0
- Conceptual questions related to authentication tools and encryption technologies
- Core CS Concepts
- Class instantiation in OOP
- Compile-time vs runtime polymorphism
- Basic JavaScript concepts
Final Process
There was no separate HR discussion for this role. The process concluded after the technical round, and candidates were informed that final results would be shared later.
Overall Impression
The experience was primarily centered around:
- Resume projects and listed technologies
- Core programming fundamentals
- Basic optimization thinking
- Moderate coding assessment
It was less focused on advanced DSA and more on practical understanding of concepts and technologies.
Interview Questions (2)
Shift All Zeroes to One Side
You are given an integer array. You need to shift all zeroes in the array to one side (either left or right). The relative order of non-zero elements does not matter.
Find Second Largest Element in Array
Given an unsorted integer array, return the second largest element in the array. If there is no such element, return -1 or handle accordingly.