I applied online. The process took 1 week. I interviewed at LinkedIn (Sunnyvale, CA) in Jul 2016
Interview
After having a brief discussion with the recruiter (who was pretty good) I ended up getting a phone interview almost immediately. Not to my surprise an extremely inexperienced guy was my interviewer( i had read in previous posts about this problem with LinkedIn). The interviewer seemed least interested in taking the interview. I feel at a loss of having missed this opportunity. I would highly suggest LinkedIn to either have an experienced developer take the interview or atleast a senior guy who has actually worked in the field for a number of years and know how things work when it actually comes to "working" and "performing" the real world tasks other than searching something in a Binary Tree or linked list.
I hope this is not the case but it seems- like young grads are rather insecure of their own job and are not letting good talent bypass them. Sad but true.
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.