Airbnb Software Engineer Interview: 2026 Guide

Airbnb's software engineer interview is typically six rounds: a recruiter screen, a technical phone screen, and an onsite loop with coding, code review, system design, and a behavioral (Core Values) round. You're looking at six total rounds that typically wrap up within 3 to 5 weeks, though team matching after your interviews can add extra time depending on availability and fit with specific managers. Two things catch people off guard: Airbnb expects code that actually compiles and runs (no pseudocode), and its two distinctive rounds, code review and Core Values, carry real weight in the decision. Below is what each round tests and how to prepare, based on recent candidate writeups and interview guides.

Note on sourcing: Airbnb publishes very little about its own process, so round structure and naming come from candidate reports and third-party guides, not an official Airbnb interview page. Treat the stages as well-documented patterns, not guaranteed policy, and expect variation by level and team.

The interview process, round by round

For mid to senior engineers, the sequence usually looks like this. Mid to senior-level engineers can expect a recruiter call (30 minutes), a technical phone screen (1 hour), an onsite (5 to 7 hours), and team matching.

Round	Length	What it tests
Recruiter screen	30 min	Background, mission alignment, logistics
Technical phone screen	60 min	Live coding on CoderPad, runnable code
Onsite: Coding	45 to 60 min	DSA, clean production code
Onsite: Code review	~60 min	Reviewing real pull requests
Onsite: System design	60 min	HLD (more rounds at senior levels)
Onsite: Core Values	60 min	Behavioral, mapped to Airbnb's values

Some pipelines add an online assessment before the phone screen. The OA is a HackerRank set of 2 to 3 algorithmic problems in 75 minutes, with emphasis on string parsing, date and calendar arithmetic, graph traversal, and interval scheduling. Timelines vary by candidate and team, so use the 3 to 5 week figure as a planning anchor, not a promise.

Coding rounds: write code that runs

The single most important Airbnb-specific habit: write working code, not a sketch. Airbnb uses CoderPad, and you're expected to write working code and run it, pseudocode is not allowed, with the expectation that you're extremely proficient in your language of choice. Practice compiling and running your solution against your own test cases inside the editor. If you normally hand-wave the last 10%, that gap shows here.

On content, Airbnb skews harder on dynamic programming and graphs than most big-tech loops. Airbnb's coding rounds are known for being heavier on Dynamic Programming and Graph Traversal than most other big tech interviews, and recent candidates from early 2026 specifically called out being caught off guard by the difficulty of DP problems. You will also hit "Airbnb-flavored" simulation problems tied to the product, like calendar and booking availability logic.

These problems from DevInterview's Airbnb question bank, ordered by how often candidates report them, map cleanly onto that pattern mix:

Add Two Numbers                              (mid/senior)  linked list, math
Longest Substring Without Repeating Chars    (mid/senior)  sliding window, hash
Regular Expression Matching                  (staff)       dynamic programming
Valid Parentheses                            (junior)      stack
Merge k Sorted Lists                         (staff)       heap, linked list
Combination Sum                              (mid/senior)  backtracking
Trapping Rain Water                          (staff)       two pointers / DP
Two Sum                                      (junior)      hash table

If you are short on time, prioritize the harder-weighted items. Regular Expression Matching and Trapping Rain Water are the kind of problems where a shaky explanation sinks an otherwise correct answer, and Merge k Sorted Lists is a near-guaranteed heap check. Warm up on the fundamentals through dynamic programming, hash table, and two pointers questions, then do timed reps where you also write and run the tests.

The code review round: Airbnb's differentiator

This is the round most candidates under-practice. Instead of writing new code, you critique existing code. You'll review actual GitHub pull requests, typically three of them, and provide feedback as you would for a real teammate, while the interviewer watches how you identify issues, prioritize feedback, and communicate your suggestions. Per candidate reports, this 60 minute session replaced the traditional second coding round in 2024 to better assess skills that engineers use daily, so treat it as a core round, not an afterthought.

The failure mode is obvious once you name it: candidates drown in style nitpicks and miss the bug that takes down production. Scan in this priority order and group your comments by severity.

Review checklist, in order:

Correctness and logic bugs (off-by-one, wrong conditionals, mutation)
Edge cases and error handling (null, empty, boundary inputs)
Security (unvalidated user input, injection, leaked secrets)
Concurrency and shared state (race conditions, non-atomic updates)
Performance and complexity (accidental O(n^2), N+1 queries)
API and naming (unclear abstractions, leaky interfaces)
Test coverage (missing cases for the risky paths)
Style and readability (last, and say so)

Tag every comment [blocking], [should-fix], or [nit] out loud so the interviewer hears your judgment. Sample phrasing for a blocking comment: "This is blocking. parseDate throws on null, and the caller passes user input, so a malformed request crashes the endpoint. I'd validate and return a 400 before parsing." For a nit: "Nit, non-blocking: rename tmp to pendingBookings for readability."

Five-minute timed exercise you can run today: open any pull request in a popular open-source repo, start a timer, and write exactly five comments, each tagged by severity, leading with the highest-severity issue you can find. Do this five times and the "where do I start" paralysis disappears.

The Core Values interview

Airbnb's behavioral round is weighted more heavily than at most companies and maps to its four values: Champion the Mission, Be a Host, Embrace the Adventure, and Be a Cereal Entrepreneur. Prepare one or two stories per value using the STAR method, and make the value explicit.

Concrete example mapped to "Be a Host" (anticipating others' needs): "On a payments migration, I noticed on-call engineers had no runbook for the new flow (Situation/Task). I wrote one and ran a 30-minute walkthrough before cutover (Action). The first production incident was resolved in minutes instead of hours, and two teammates told me the doc saved their shift (Result)." That is one tight story that shows service to teammates, not a generic "I'm a team player."

On the folklore: you may read that Core Values interviewers hold veto power over the hire. Be careful here. That description traces to 2019, from a named former executive, describing two interviews by employees outside the candidate's discipline who held veto power, but Airbnb itself has never published the term and nothing on its current careers site describes such a round, so it should be treated as a documented historical practice of unknown current status, not a stage you can plan around. The practical takeaway is unchanged: take this round as seriously as the coding rounds and show genuine mission alignment, which recruiters start listening for on the very first call.

A 3 to 4 week prep plan

Week 1: Rebuild fundamentals. Timed reps on arrays, strings, stacks, and heaps. Start every session by writing runnable code and your own tests in CoderPad or a similar editor.
Week 2: Go deep on DP and graphs, Airbnb's known emphasis. Work Regular Expression Matching, Trapping Rain Water, Combination Sum, and Merge k Sorted Lists until the explanations are clean.
Week 3: Code review and system design. Do the five-minute PR drill daily, and practice one HLD per day (search, booking, reviews). Senior candidates get more design rounds, so weight accordingly.
Week 4: Core Values stories and full mock loops. Rehearse one story per value, then run end-to-end mocks so the context-switching between rounds feels normal.

You can drill Airbnb-tagged problems with AI feedback on DevInterview's practice page, and compare the loop to peers like Meta or Google if you're interviewing in parallel.

FAQ

How many coding rounds does Airbnb have?

Typically one coding screen plus one coding round in the onsite, with the second traditional coding slot now often replaced by the code review round. More senior candidates usually trade coding rounds for additional system design. Counts vary by level and team.

Does Airbnb allow pseudocode?

No. Candidates consistently report that Airbnb expects runnable code on CoderPad and will have you execute it. Practice writing and running your own test cases inside the editor rather than just describing an approach.

What makes the Airbnb interview different from other big tech?

Two rounds: a dedicated code review round where you critique real pull requests, and a Core Values behavioral round that carries unusual weight. The coding bar also leans harder on dynamic programming and graphs than most comparable loops.

How long does the Airbnb process take?

Most candidates report roughly three to five weeks from screen to decision, though team matching can extend that depending on manager availability. Treat it as an estimate, since timelines vary by candidate and team.

What are Airbnb's four core values?

Champion the Mission, Be a Host, Embrace the Adventure, and Be a Cereal Entrepreneur. Prepare one or two STAR stories per value and name the value explicitly when you tell the story.