I applied through other source. The process took 5 days. I interviewed at LinkedIn in Oct 2016
Interview
A LinkedIn recruiter reached out to me on LinkedIn for a senior software engineer role..although I'm a better fit for junior developer (I mentioned this to them). The two interviewers called and asked me two questions (first was testing how well you remember strings/character manipulation, second was mergesort). The interviewers were completely quiet during the interview, and even when I asked questions, I had to ask several times because they were not listening. They seemed completely uninterested, and I had a feeling they decided not to like me after I failed to remember some concepts for the first question. Overall, horrible experience. I've had bad interviews in the past, but none where I felt the interviewer just didn't care to even listen. I would never interview here again. Even the interviewers did not seem like they enjoyed their job.
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.