Airbnb Backend Engineer interview questions and process

Updated 15 Oct 2026 · 14 sources

Hiring Pulse: where Airbnb candidates are right now

Dated status reports from public Reddit threads and anonymous PortLume reports, updated Oct 15. Not official Airbnb data.

0 status reports in the last 7 days
Not enough data yet: median from final interview to a decision shows at 5+ people
Latest movement: 1 offer, 1 OA invite reported since Sep 18

Latest Airbnb hiring reports

Oct 7: OA invite Oct 7 (r/IndianWorkplace)
Oct 7: Offer Oct 7 (r/cscareerquestions)
Sep 8: Interview Sep 8 (r/leetcode)
Sep 3: Interview Aug 27 (r/recruitinghell)
Aug 19: Offer Aug 19 (r/csMajors)

Candidates rate the Airbnb Backend Engineer interview Hard: Reports describe LeetCode medium-to-hard coding rounds where working code is expected, plus a system design round that candidates say is grilled hard. Reports describe 7 rounds, from Recruiter screen to Hiring manager / behavioral round.

Difficulty: Hard
Skills asked about: Data structures and algorithms, Graph and sliding window problems, Dynamic programming and optimization

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Airbnb Backend Engineer interview rounds

Recruiter screen: A recruiter call after applying, usually to check fit and timing. One SDE 2 candidate was told the opening was urgent.
Online assessment or take-home coding
Coding rounds (2 x 45 min)
Code review round
System design (about 60 min)
Project deep dive
Hiring manager / behavioral round

Questions reported in Airbnb Backend Engineer interviews

Given a tree as [parent, left child, right child] entries, determine whether it is a valid Binary Search Tree and return the root if so.
Coin-style target sum problem where the target and all values are doubles.
Find the minimum window in a string containing all characters of a given pattern.
Solve a sliding puzzle (similar to LeetCode Sliding Puzzle), starting from brute force/DFS and moving to an optimal approach.
Russian Doll Envelopes: give the O(N^2) DP, then optimize to O(N log N).

Practise any of these with timed AI feedback and a full Airbnb mock: free account.

Airbnb Backend Engineer interview: quick answers

How many rounds are in the Airbnb Backend Engineer interview?

Public reports describe 7 rounds for the Airbnb Backend Engineer interview: (1) Recruiter screen, (2) Online assessment or take-home coding, (3) Coding rounds, (4) Code review round, (5) System design, (6) Project deep dive, (7) Hiring manager / behavioral round.

Is the Airbnb interview difficult?

Public reports put the Airbnb Backend Engineer interview at Hard difficulty. Reports describe LeetCode medium-to-hard coding rounds where working code is expected, plus a system design round that candidates say is grilled hard. The process has 7 rounds, from Recruiter screen to Hiring manager / behavioral round.

Does Airbnb ask DSA in Backend Engineer interviews?

Yes. Rounds that involve coding: Online assessment or take-home coding, Coding rounds (2 x 45 min). Reports describe LeetCode medium-to-hard coding rounds where working code is expected, plus a system design round that candidates say is grilled hard. Data structures and algorithms is among the skills reports mention most.

Sources

Based on 14 public reports: YouTube (8), LeetCode Discuss (5), Reddit (1), last updated Oct 2026.

Compiled by Adarsh Sharma from public candidate reports. Unofficial guide: PortLume AI is not affiliated with Airbnb.

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Last round at Airbnb is usually HR: Airbnb HR interview questions and answers.

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