Coding fluency
Implement an LRU cache. Explain your data structures, test capacity one, and walk through an eviction.
What a strong answer demonstrates
Correctness, edge cases, and time / space complexity.
Prepare for Nasdaq with a focused mix of coding, design, and communication. Start with your job description and confirm the interview loop with your recruiter.
6 Practice picks
2 Interview reports
5 Levels mapped
01 / MAKE YOUR NEXT SESSION COUNT
Your preparation, made concrete.
System design
Design a notification service. Clarify delivery guarantees, model the data, then handle retries and duplicate events.
What a strong answer demonstrates
Clear requirements, a working baseline, and explicit trade-offs.
Behavioral storytelling
Describe a technical decision you changed after receiving feedback. Explain your contribution and the outcome.
What a strong answer demonstrates
Specific actions, honest reflection, and measurable impact.
BEFORE YOU PRACTICE
Ask your recruiter.
Get the details that a generic company guide cannot know.
- Which team and level is this opening for, and what does success look like?
- What rounds, durations, and evaluation criteria should I prepare for?
- Which languages, tools, and AI assistance are permitted?
- Will design focus on frontend, backend, infrastructure, or another specialty?
- Are there accommodations or preparation materials I should request?
Nasdaq practice problems
Company-linked challenges and related lessons from our library. Not a prediction of your interview.
Challenge
Difficulty 5/10
String From Binary Tree
Challenge
Difficulty 7/10
Hoisting and Call Stack
Challenge
Difficulty 5/10
Max Product of Three Numbers
Challenge
Difficulty 5/10
Merge Sorted Linked Lists
Challenge
Difficulty 5/10
Max Leaps in Jump Game
Challenge
Difficulty 7/10
Traverse a Matrix in Spiral Order
Real interview experiences
2 reports from candidates who interviewed at Nasdaq.
What people at Nasdaq say
Reviews originally posted on Glassdoor.
Cool technology, right in the middle of finance.
Interesting Problems, WLB, good learning opportunity,
Great team environment, Great culture, Great career growth. Work with latest tech. Great benefits
In general, I'd consider nasdaq omx to be a good place to work. I felt that emnployees were treated well and compensated very fairly based on their contribution. It is a company that is constantly looking for new ways to generate revenue, and it provides far more services to its clients than you would normall associate with a stock market. Because of this, I feel that there is opportunity to make an impact by helping create new business.
Benefits were great, profit sharing, bonuses and decent pay, 3 weeks vacation to start. Colleagues were great. . . flexible environment.
Inside the workplace
About Nasdaq
A day at Nasdaq