I applied online. The process took 5 weeks. I interviewed at LinkedIn (Sunnyvale, CA) in Feb 2024
Interview
Almost all technical rounds had an interviewer shadow someone, so you have two people to talk to.
First round is technical phone screen. Two LC medium-ish questions in one hour.
Onsite has several rounds:
1. Coding (algorithms), which is focused on LC medium level questions with optimal algorithms and runtime. Two questions in one hour.
2. Coding (structure), focused on how you organize your code. Not really LC but this one I found labeled as hard on LC. Two questions in one hour.
3. Past project, basically a system design on something you made. Interviewer will ask questions along the way.
4. System design, standard type of question. Use the whiteboard feature in Zoom, which isn't great.
5. Host manager, purely behavioral and talking about your career and why LinkedIn.
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.