LinkedIn Backend Engineer Interview Questions (2026 Guide)
LinkedIn Backend Engineer interviews follow Microsoft-family big-tech norms (LinkedIn is owned by Microsoft) with coding rounds and system design questions frequently framed around LinkedIn's real problems — the professional graph, feed ranking, and messaging at scale — plus a behavioral round tied to LinkedIn's stated culture values.
Interview process at a glance
| Round | Focus / Example Question Type | Difficulty | Prep Time |
|---|---|---|---|
| Recruiter + technical phone screen | Data structures & algorithms (1-2 rounds) | Medium | 10-15 hrs |
| System design | Design a social-graph, feed-ranking, or messaging system at scale | Hard | 15-20 hrs |
| Onsite coding round(s) | Additional coding problems, sometimes with distributed-systems framing | Medium-Hard | 8-12 hrs |
| Behavioral / culture round | STAR-format stories on collaboration, member-first thinking | Medium | 4-6 hrs |
Grounded in publicly reported candidate interview experiences (Glassdoor, IGotAnOffer, InterviewBit) and LinkedIn's publicly published engineering blog.
FAQs
How similar is LinkedIn's process to Microsoft's since LinkedIn is owned by Microsoft?
LinkedIn largely runs its own distinct hiring process and engineering culture despite Microsoft ownership; expect LinkedIn-specific system design themes (professional graph, feed, messaging) rather than generic Microsoft/Azure questions.
What system design topics come up most for LinkedIn backend roles?
Feed ranking, the professional connection graph, and scalable messaging/notifications systems are the most frequently referenced themes, drawing on LinkedIn's public engineering blog content.
How many coding rounds should I expect?
Typically 2-3 across the phone screen and onsite/virtual loop, at medium-to-hard difficulty comparable to other large tech companies.
What's the behavioral round like?
Structured STAR-format questions assessing collaboration, ownership, and a member-first mindset, consistent with LinkedIn's publicly stated culture values.
How long is the full loop?
Commonly a recruiter screen, 1-2 technical phone screens, then a virtual/onsite loop of 4-5 rounds including coding, system design, and behavioral interviews.
Related interview guides
- Software Engineer Interview Questions at LinkedIn
- LinkedIn Data Scientist Interview Questions
- LinkedIn Machine Learning Engineer Interview Questions
- LinkedIn UX Designer Interview Questions
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By Pinal Dave | Last updated: 2026-08-03
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