NielsenIQ

NielsenIQ is the industry leader in global measurement and data analytics, and the most trusted source for retail and consumer intelligence. We deliver the complete truth to retailers, manufacturers, and our partners through our comprehensive data sets and powerful insights. We enable businesses to make critical decisions confidently, accelerating growth and optimizing performance. Our 30,000 employees -- based in over 100 countries -- are talented, passionate, and unwavering in their commitment to helping clients achieve success.

Interview Questions

Learn and Practice on almost all coding interview questions asked historically and get referred to the best tech companies.

Problem Title

Exp

Difficulty

Avg. time

Attempted

Upvotes

Merge Two Sorted Linked Lists

Moderate

15 mins

60.8k

426

Selection Sort

Easy

169.4k

329

Median of two sorted arrays

120

Hard

25 mins

43k

303

Count Distinct Substrings

Moderate

10 mins

30.8k

266

Check If Linked List Is Palindrome

Easy

15 mins

30.2k

145

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Interview Experiences

Gain the Edge You Need at your next technical interview with Coding Ninjas.s unlimited interview problems practices for NielsenIQ

Upvote

NielsenIQ | SDE - 1 | Experienced | Sep 2024

Published on 4 Jan 2026

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NielsenIQ | Software Developer | Experienced | Jun 2024

Published on 23 Oct 2024

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NielsenIQ | Senior Software Engineer | Experienced | Aug 2024

Published on 23 Oct 2024

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Guided Paths

Here is your ultimate guide for cracking your dream job interview, you can choose your tracks and start preparing for NielsenIQ

Data structures & algorithms (Beginner to Intermediate)

If you are a complete beginner to data structures / want quick content to revise and practise questions for placements, this is the guided path for you . This guided path covers the absolute basics introducing every data structure, its need and then checks your understanding with relevant coding questions and mcqs to solve, so that you can have an all round understanding of the concepts studied.