Airbnb interview questions

Showing 61–90 of 112 results

• Estimate Causal Impact Using Synthetic Control MethodsHard

  Evaluates causal impact estimation after a full product rollout with no holdout. Strong answers use interrupted time series, synthetic control, Bayesian structural time series, exposure variation, and placebo tests to build and validate a credible counterfactual.

  AirbnbData ScientistAnalytics & ExperimentationTechnical Screen
• Estimate Page-Visit Duration from the Next User EventMedium

  Implement logic to compute user page-visit durations based on adjacent event timestamps, deterministically resolving ties and handling boundary conditions for terminal events.

  AirbnbData EngineerData Manipulation (SQL/Python)Onsite
• Estimate impact of global launch without holdoutHard

  This question evaluates a candidate's competence in causal inference, observational study design, and statistical uncertainty quantification for product analytics, specifically estimating lift after a global launch without a holdout while addressing confounding, interference, and operational data-quality issues.

  AirbnbData ScientistAnalytics & ExperimentationTechnical Screen
• Explain ML Project Milestones, Scope, and ConflictMedium

  Explain an ML project through scope decisions, measurable milestones, stakeholder conflict, online readiness, and evidence-based changes to the plan.

  AirbnbMachine Learning EngineerBehavioral & LeadershipOnsite
• Explain why you want to join AirbnbMedium

  This question evaluates a software engineer's ability to articulate authentic motivation, product literacy, and cultural fit in a values-focused interview round. It tests how well candidates can connect their engineering background to real organizational problems and communicate genuine alignment — skills commonly assessed in the culture and behavioral rounds of technical interview loops.

  AirbnbSoftware EngineerBehavioral & LeadershipTechnical Screen
• Find Hosts Meeting Listing, Rating, and Review-Coverage RulesMedium

  Tests the ability to write a SQL query performing multi-table aggregations, date-windowed conditional logic, and host-level qualification filtering across listing counts, average ratings, and recent review coverage.

  AirbnbData EngineerData Manipulation (SQL/Python)Onsite
• Find Users with Seven Consecutive Impression DaysMedium

  Tests your ability to identify consecutive calendar-day activity streaks in PostgreSQL using window functions, date arithmetic, and deduplication.

  AirbnbData EngineerData Manipulation (SQL/Python)Onsite
• Find minimal property set in neighborhoodMedium

  This question evaluates combinatorial optimization and algorithm design skills, focusing on capacity-constrained selection (subset-sum/knapsack-style reasoning), deterministic tie-breaking, and complexity analysis within the Coding & Algorithms domain.

  AirbnbSoftware EngineerCoding & AlgorithmsTechnical Screen
• Find palindrome-forming string pairsMedium

  This question evaluates string-processing and algorithmic design skills, including knowledge of efficient lookup data structures, palindrome properties, handling of edge cases, and time/space complexity analysis.

  AirbnbSoftware EngineerCoding & AlgorithmsOnsite
• Find smallest permutation under constraintsMedium

  This problem tests your ability to manipulate digits and understand greedy strategies to construct the smallest possible number after applying specific constraints.

  AirbnbSoftware EngineerCoding & AlgorithmsOnsite
• Flatten a Nested Integer ListHard

  Flatten an arbitrarily deep mixture of integers and lists while preserving left-to-right order. The challenge emphasizes an iterative stack solution that handles empty lists, very deep nesting, and up to 200,000 nodes without mutating the input.

  AirbnbSoftware EngineerCoding & AlgorithmsOnsite
• Generate Customer-Support Instructions from Company PoliciesMedium

  Design a policy-grounded support RAG system with ordered instructions, applicability checks, procedural evaluation, citations, and version-aware debugging.

  AirbnbMachine Learning EngineerML System DesignOnsite
• How do you conduct a code review exercise?Hard

  This question tests a software engineer's ability to conduct structured, high-signal code reviews under time pressure and limited context. It evaluates judgment in prioritizing correctness issues over style, communicating feedback clearly, and handling ambiguity — core competencies in software engineering fundamentals interviews.

  AirbnbSoftware EngineerSoftware Engineering FundamentalsOnsite
• Implement Connect Four gameMedium

  This question evaluates implementation skills for game state management, move handling, and efficient winner-detection algorithms, testing competence in data structures, algorithmic complexity analysis, and correctness under edge cases.

  AirbnbSoftware EngineerCoding & AlgorithmsTechnical Screen
• Implement Connect Four with win detectionMedium

  This question evaluates a candidate's ability to design efficient data structures and algorithms for real-time game state management, including win detection, API design, time/space complexity analysis, and handling edge cases such as full or out-of-range columns.

  AirbnbSoftware EngineerCoding & AlgorithmsOnline Assessment
• Implement Text Layout and Query ParsingEasy

  Implement URL query parameter extraction and a greedy text line-wrapper that enforces maximum line length and prevents orphan words on the final line.

  AirbnbSoftware EngineerCoding & AlgorithmsTechnical Screen
• Implement a Multi-Level Recipe Management ServiceMedium

  Design and implement an in-memory recipe management service supporting deterministic querying, defensive data isolation, atomic updates, and secondary index maintenance.

  AirbnbSoftware EngineerSoftware Engineering FundamentalsOnline Assessment
• Implement a Removable Nested-List IteratorEasy

  Design and implement a nested-list iterator supporting `hasNext`, `next`, and an in-place `remove` operation that alters the original data structure.

  AirbnbSoftware EngineerCoding & AlgorithmsTechnical Screen
• Implement a Time-Aware Banking SystemHard

  Design and implement a stateful, time-aware in-memory banking ledger that handles atomic transfers, deferred/scheduled executions, account mergers, historical balance queries, and activity rankings.

  AirbnbSoftware EngineerSoftware Engineering FundamentalsOnline Assessment
• Implement a Time-Aware Task Management SystemMedium

  Design and implement an in-memory, time-aware task management class that supports scheduling, rescheduling, canceling, and prioritized polling based on timestamps and priorities.

  AirbnbSoftware EngineerSoftware Engineering FundamentalsOnline Assessment
• Implement a reservation widget with pricingMedium

  This question evaluates skills in frontend component state design, data modeling, pricing computation, validation logic, error handling, and API integration for a lodging reservation widget.

  AirbnbSoftware EngineerSoftware Engineering FundamentalsOnsite
• Implement retry wrapper and interdependent validatorsHard

  This question evaluates a candidate's competence in building robust asynchronous utilities and form validation logic, covering retry/backoff strategies, error classification, per-attempt and overall timeouts, cancellation via AbortSignal, observable retry hooks, cross-field validators, state management, and accessibility considerations in JavaScript/TypeScript web applications. Category: Other / Miscellaneous; domain: web development and systems reliability in JavaScript/TypeScript; it is commonly asked because it probes both conceptual understanding of retry semantics, cancellation and validation constraints and practical implementation skills related to API ergonomics, error propagation, composable validators, and performance trade-offs.

  AirbnbSoftware EngineerSoftware Engineering FundamentalsOnsite
• In-Memory Banking System with Immediate, Offline and Deletable TransfersMedium

  Implement an in-memory banking system across progressive levels: create users, move money immediately, accept offline transfers that take effect later, and delete transfers that have not completed. It tests state modeling, validation before mutation, conservation of money across every sequence of operations, and extensible class design.

  AirbnbSoftware EngineerSoftware Engineering FundamentalsOnline Assessment
• In-Memory Banking System: Transfers, Top Spenders, Scheduled Payments, Account MergesHard

  A four-level in-memory banking system: create accounts, deposit and transfer, rank top spenders by outgoing value, run scheduled payments that must execute in timestamp order before every later operation, and merge accounts while keeping both balances and histories. It tests incremental class design and time-ordered state.

  AirbnbSoftware EngineerSoftware Engineering FundamentalsOnline Assessment
• In-Memory Workspace Credit System With Transfers, Top-K and Scheduled TransfersMedium

  Implement an in-memory workspace credit system in levels: create workspaces, add credit and transfer it instantly, return the top K workspaces, then schedule and cancel future transfers that must take effect before each later operation. It tests clean state management, deterministic ordering, time-based processing and extensible code under a tight time limit.

  AirbnbSoftware EngineerSoftware Engineering FundamentalsOnline Assessment
• Influence Decisions Without Direct Authority: Strategies and OutcomesMedium

  Evaluates behavioral storytelling for influencing decisions without direct authority. Strong answers use STAR, map stakeholders, build alignment with shared goals and evidence, handle objections, quantify outcomes, and show how the candidate drove a decision without formal power.

  AirbnbData ScientistBehavioral & LeadershipTechnical Screen
• Lead cross-functional decision without RCT evidenceHard

  This question evaluates a data scientist's cross-functional decision-making, experimental-design reasoning without a holdout, metric definition, and stakeholder-influence skills within a product analytics context.

  AirbnbData ScientistBehavioral & LeadershipTechnical Screen
• Maximize path score in DAGMedium

  This question evaluates proficiency in graph algorithms and optimization, focusing on reasoning about weighted directed acyclic graphs and maximizing a path score that combines node rewards and edge time costs.

  AirbnbSoftware EngineerCoding & AlgorithmsTechnical Screen
• Maximize profit from non-overlapping jobsMedium

  This question evaluates proficiency in weighted interval scheduling, dynamic programming concepts, and the use of efficient data structures for large-scale scheduling problems, including handling duplicate times, large reward values, and memory constraints.

  AirbnbSoftware EngineerCoding & AlgorithmsOnsite
• Maximize sum with no adjacent tree nodesHard

  This problem tests your ability to use tree-based dynamic programming to solve an optimization challenge where you must select a subset of nodes with no two being adjacent, while maximizing the sum of their values.

  AirbnbSoftware EngineerCoding & AlgorithmsOnsite