LinkedIn Engineering Manager Interview Questions

1.Describe a time you had to work with a product manager or designer who was particularly difficult to collaborate with. How did you build that relationship to deliver something together?

2.Describe a time you stepped in to solve a critical problem that wasn't technically your team's responsibility. What was the problem and why did you get involved?

3.Tell me about a time you killed or significantly changed a feature your team had already built because it wasn't right for members. What was the feature and how did you make that call?

4.Walk me through a time you fundamentally changed how your team approached code quality or engineering practices. What was broken and how did you fix it?

5.Tell me about a time you had to give feedback to a senior engineer that they weren't going to like hearing. What was the feedback and how did they receive it?

6.Tell me about a calculated technical or product bet you made that didn't work out. What was the bet, why did it fail, and what did you learn?

7.Your team is responsible for the search API that powers LinkedIn Jobs recommendations. You notice that 20% of searches are taking over 2 seconds to return results. How do you investigate and fix this?

8.A junior engineer on your team accidentally pushed a config change that caused elevated error rates in production. The issue is fixed but they're now hesitant to make any changes. How do you handle this situation?

9.You're managing the LinkedIn Feed ranking team and notice that engagement is down 5% after your latest ML model rollout, but member feedback is actually positive. How would you approach diagnosing this?

10.A critical Kafka cluster that your team depends on is experiencing significant lag during peak hours, affecting multiple downstream services. As the engineering manager, walk me through your immediate response and longer-term planning.

11.Your team owns a service that handles user profile updates and it's currently deployed across 12 microservices. Product wants to add real-time profile completeness scoring that needs to trigger on every field update. How would you design this?

12.You're leading a team that needs to migrate a legacy monolithic service to microservices, but the business wants you to keep shipping features during the migration. How do you approach this technical and organizational challenge?

13.Design a system that tracks when LinkedIn Learning course completions should trigger skill badges on member profiles. The system needs to handle 10 million course completions per month and update member profiles in near real-time.

14.You need to build a system that prevents duplicate job applications on LinkedIn Jobs while allowing members to track application status across different devices. How would you design this?

15.Design the content moderation pipeline for LinkedIn Feed that needs to review 500 million posts per day while ensuring professional content reaches members within minutes of posting.

16.Design a recommendation system for Sales Navigator that suggests which prospects a salesperson should contact next, considering their past outreach patterns, prospect engagement, and current pipeline status.

17.LinkedIn Recruiter needs to surface the best candidate matches for a job posting within seconds of a recruiter's search, even when searching across 900+ million member profiles. Design this search and ranking system.

18.Design a system that powers LinkedIn's "People You May Know" suggestions, which needs to generate personalized recommendations for 900+ million members while being extremely careful about privacy and avoiding awkward suggestions.

19.Tell me about a time you had to convince leadership to prioritize engineering infrastructure work over shipping new features. How did you make the case?

20.Walk me through a time when you had to deliver difficult feedback to an engineer who was technically strong but wasn't collaborating effectively with other teams or following LinkedIn's engineering practices.

21.You notice your team is spending 40% of their sprint capacity on responding to alerts and firefighting production issues. Walk me through how you'd diagnose and address this systematically.

22.Describe a time you had to manage a team through a significant technical migration while they were also under pressure to deliver features for a high-visibility product launch.

23.Tell me about a time you had to shut down or significantly pivot a project that your team was excited about but wasn't delivering the member value you expected.

24.You're managing a team that owns a critical service used by multiple LinkedIn products, but other engineering teams keep asking for features that would benefit their specific use cases at the cost of overall system simplicity. How do you handle these competing demands?

25.LinkedIn Learning has 700 million course views per month, but we want to understand how many unique learners that represents. Estimate the number of distinct people using LinkedIn Learning each month and walk me through your assumptions.

26.LinkedIn wants to launch a feature letting recruiters schedule interviews directly through LinkedIn Recruiter. Estimate the engineering effort required and what systems would need to be built or modified.

27.You need to estimate the storage cost for LinkedIn's messaging platform if we started storing message edit history. Users send about 2 billion messages per month. What would this cost annually?

28.Sales Navigator revenue dropped 15% month-over-month, but user engagement metrics look normal. Your team owns the billing and subscription service. How would you investigate whether this is a technical issue on your end?

29.Estimate how much compute cost LinkedIn would save annually if we improved our Feed ranking model efficiency by 20%. Walk through your calculation and key assumptions.

30.LinkedIn's notification system sends 500 million notifications daily, but open rates have declined 30% over six months. No major product changes shipped. How would you approach diagnosing this across the entire notification pipeline?