The process took 2 days. I interviewed at LinkedIn (Mountain View, CA) in Mar 2010
Interview
I had applied for the job from linkedin job postings. The recruiter called me and tooke 2 weeks to set up an phone interview. The interviewer, another senior software engineer, was prompt and described about the position and work done by his department. Asked question about algorithms and time complexity involved with with them and gave a problem and asked questions from my solution. It was hard to explain line by line program over the phone. This kind of interview should be done during 1:1 not over the phone
Interview questions [1]
Question 1
Given an array with duplicate elements give an algorithm to get the count of distinct elements in the array
The phone screen was more intense than I'd anticipated, lasting about 45 minutes with a mix of behavioral and technical questions. They probed my understanding of system design, specifically challenging me to think through a notification delivery service. I felt prepared, thanks to the company-specific questions I found on PracHub that outlined similar scenarios. The final rounds focused heavily on the scalability and reliability of systems. After a series of interviews, I received an offer, which I happily accepted. Overall, it was a rigorous but rewarding experience.
Interview questions [1]
Question 1
Design LinkedIn's notification fan-out service that delivers post-engagement notifications (e.g. someone reacted to your post or commented on your article) to millions of subscribers in near real-time, including how you would handle 'hotspot' creators with millions of followers, deduplicate redundant notifications when many actions target the same content, and guarantee at-least-once delivery across regional failures.
I applied online. I interviewed at LinkedIn (San Francisco, CA) in Mar 2026
Interview
Had an initial phone screen round-
Questions - Regular Medium level question, string manipulation
Follow up - Concurrency related on top of the first question.
Waiting for the second round right now
I applied through a recruiter. I interviewed at LinkedIn (San Francisco, CA)
Interview
Was greeted by a person who basically walked me around the office during my interview, did a couple of rounds with a group on a whiteboard solving a coding challenge, and one to solve a software architecture challenge. Had lunch onsite. And one round of interview with someone who wasn't technical.
Interview questions [1]
Question 1
Write the code to generate an English language rendition of any integer up to 100,000,000.