Interview Experience Analysis for Nielsen

Jan 2026Applied via career page and recruiter reached out.R1 - 45minJava, OOPs, SpringBoot, Distributed systems.R2 - 2.5 hrsMaching Coding - Design Dictionary with prefix, pattern, exact search, hamming distance, word suggestions 1.5 hrs implementation1 hr discussion - time complexity, improvements...

Current Experience -> 2.5+ Years (including internships) Round 1 -> DSA + Computer Science Fundamentals Basic introduction + 2 DSA questionsDid not get time to get onto CSF Q1 -> count of distinct sets of {a,b,c,d} indices in an array for which arr[a] + arr[b] + arr[c] + arr[d] = target Q2 -> Pick ...

I cold-emailed a recruiter, and luckily, got a call from them after a few days. The first round of the interview was scheduled for the following day. ### Round 1 (1 hour) - Problem Solving / DSA https://leetcode.com/problems/next-greater-element-i/ https://leetcode.com/problems/binary-tree-maximum-...

Round 1BAR Raiser Platform (3rd party)1. Internal working of hashmap.2. Followup questions on how collections work in multithreaded environments.3. DSA question on backtracking - https://leetcode.com/problems/permutations/description/4. React hooks questions and usecase discussion on Photogallery Ap...