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Interview Questions
Practice 9403 coding, system design and machine learning questions from 546 companies, sorted by role, topic and interview round. Every question has step-by-step hints, a code runner that supports 8 languages and an AI mentor; members also get the full solution walkthrough.
- 9403
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- 546
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- 11
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- 8
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Showing 601–630 of 3640 results
- AsanaMediumSoftware EngineerImplement core puzzle/array/grid routines
This question set evaluates algorithmic problem-solving competencies including backtracking and constraint satisfaction for jigsaw assembly, simulation and state manipulation for ASCII canvas and 2048 move logic, and linear-time in-place array transformation for the product-of-array problem.
Coding & AlgorithmsOnsite - AsanaMediumSoftware EngineerModel a Turn-Based Cats and Rabbits Board Game
Design the object model, game state invariants, and move-validation engine for an asymmetric turn-based grid game played on a 7x7 board.
Software Engineering FundamentalsOnsiteobject-oriented-designgame-designstate-machine - AsanaMediumSoftware EngineerReturn the K Closest Points with Deterministic Ties
This problem tests the ability to efficiently find the nearest neighbors to a target coordinate while maintaining a deterministic ordering for ties, ensuring reproducible results.
Coding & AlgorithmsOnsiteHeapSortingGeometry - Assorted HealthMediumSoftware EngineerDesign a Conversational Flight Search, Booking, and Price-Tracking Service
Design a conversational flight service that turns vague travel intent into grounded multi-leg search, safe booking, and useful price alerts. Cover clarification, authoritative supplier data, repricing, idempotent payment flows, shared price watches, quotas, privacy, and graceful degradation at large scale.
System DesignOnsite - AtlassianMediumMachine Learning EngineerAssign bookings to minimum tennis courts
This problem tests your ability to manage overlapping time intervals using a greedy approach, specifically requiring the calculation of the maximum number of concurrent bookings to determine the minimum resource count.
Coding & AlgorithmsOnsiteGreedySortingIntervals - AtlassianMediumSoftware EngineerAssign tennis bookings to minimum courts
Design an algorithm to assign a schedule of tennis court bookings to the minimum number of courts required, resolving resource contention efficiently.
Coding & AlgorithmsOnsiteIntervalsHeapGreedy - AtlassianHardMachine Learning EngineerCompute a moving average on a stream
This problem tests your ability to maintain a running average over a sliding window of size K in a high-throughput streaming environment while managing numerical precision and memory efficiency.
Coding & AlgorithmsOnsiteAlgorithmsData StructuresStreaming - AtlassianMediumMachine Learning EngineerCompute inverse-depth weighted sum of a nested list
This problem tests your ability to traverse nested list structures using recursion or iterative stacks and compute a value based on the nesting depth of individual elements.
Coding & AlgorithmsOnsiteRecursionTreesData Structures - AtlassianMediumMachine Learning EngineerCompute moving average over last N stream
This question evaluates understanding of streaming algorithms and sliding-window aggregation within the Coding & Algorithms domain, focusing on incremental computation, state management, and numerical stability when computing moving averages.
Coding & AlgorithmsOnsite - AtlassianMediumSoftware EngineerCompute top-N posts in a workspace
This question evaluates skills in designing scalable, low-latency analytics and aggregation systems, covering event tracking, time-windowed ranking, stream processing, storage trade-offs (OLTP vs OLAP), caching, API design, and handling late or duplicate events.
System DesignOnsite - AtlassianMediumMachine Learning EngineerDesign Jira bug-to-team classification system
This question tests the ability to design an end-to-end ML pipeline for classifying incoming Jira tickets to appropriate engineering teams based on textual and historical metadata.
ML System DesignOnsiteNLPClassificationScalability - AtlassianMediumSoftware EngineerDesign Monitoring and Reliability for 99.99% Availability
Design a comprehensive observability and reliability framework to guarantee 99.99% availability for a multi-tenant cloud collaboration platform. The design must cover Service Level Indicators (SLIs), Service Level Objectives (SLOs), automated burn-rate alerting, dependency fault isolation, and chaos recovery testing.
System DesignOnsiteSREObservabilityDistributed Systems - AtlassianMediumMachine Learning EngineerDesign O(1) cache and moving average
This problem tests your ability to maintain constant-time complexity for both cache management and sliding-window statistics by using a combination of a doubly-linked list and hash maps.
Coding & AlgorithmsOnsiteLRU CacheData StructuresSliding Window - AtlassianMediumSoftware EngineerDesign Scalable Product Backends
This problem tests your ability to design a high-throughput, distributed task management system, focusing on data modeling, concurrency control, and scalability for collaborative features.
System DesignOnsiteScalabilityDatabase ModelingConcurrency - AtlassianMediumSoftware EngineerDesign a CI/CD release notification service
This problem evaluates your ability to design a flexible, object-oriented notification service that handles varying event triggers and subscriber preferences in a release pipeline.
Software Engineering FundamentalsOnsiteSystem DesignDesign PatternsCI/CD - AtlassianMediumMachine Learning EngineerDesign a Jira+Confluence RAG assistant
This question evaluates competencies in designing retrieval-augmented generation systems, including ingestion and indexing, retrieval and ranking strategies, prompt-based generation and citation handling, permission-aware access control, and monitoring for freshness and latency.
ML System DesignOnsite - AtlassianMediumSoftware EngineerDesign a Social-Media Comments and Notifications System
Design social comments with APIs, indexed pagination, durable notifications, retry deduplication, and measured read/write scaling for hot posts.
System DesignOnsite - AtlassianMediumMachine Learning EngineerDesign a scalable chatbot platform
This problem tests your ability to architect a scalable, stateful chatbot system that integrates RAG (Retrieval-Augmented Generation) with low-latency conversational requirements.
System DesignOnsiteLLMRAGScalability - AtlassianMediumSoftware EngineerDesign a tagging system and REST APIs
This question evaluates a candidate's ability in RESTful API design, data modeling, concurrency control, idempotency, pagination, and indexing/search strategies for a multi-tenant tagging system. It is commonly asked in the system design category to assess architectural decision-making and both conceptual understanding and practical application of endpoints, schema, and edge-case handling.
System DesignOnsite - AtlassianHardMachine Learning EngineerDesign an ML-powered search system
This question tests the ability to design a scalable, low-latency, and relevant search system for internal enterprise documents, focusing on the integration of hybrid search (keyword + semantic) and ranking strategies.
ML System DesignOnsiteInformation RetrievalRankingEmbeddings - AtlassianMediumSoftware EngineerDesign an access control system (RBAC + resource-based)
This question evaluates a candidate's ability to design a scalable authorization system incorporating RBAC and resource-based ACLs, testing competencies in access-control models, data schema design, policy evaluation, API design, caching strategies, and audit logging.
System DesignOnsite - AtlassianMediumSoftware EngineerDesign an image crawler for unlimited URLs
This question evaluates a candidate's ability to design scalable, fault-tolerant distributed systems for web crawling, covering competencies in concurrency, queueing and scheduling, deduplication, storage architecture, and observability.
System DesignOnsite - AtlassianMediumMachine Learning EngineerDesign an internal data-access chatbot
This question evaluates a candidate's ability to design production-ready ML systems that integrate retrieval-augmented generation, secure access control, tool-based workflows, data privacy, auditability, and low-latency interaction.
ML System DesignOnsite - AtlassianMediumData ScientistDiagnose Checkout Rate Drop: Steps and Analyses
Diagnose Checkout Rate Drop: Steps and Analyses evaluates metric design, causal reasoning, experiment setup, diagnostics, SQL/statistical checks, and recommendations in a realistic interview setting. A strong answer states assumptions, handles edge cases, explains trade-offs, and shows how to validate the result clearly.
Analytics & ExperimentationOnsite - AtlassianMediumSoftware EngineerEvaluate Architecture and Capacity Trade-offs
This problem tests your ability to design a document storage and processing system, specifically focusing on capacity estimation, deduplication strategies, and security considerations.
Software Engineering FundamentalsOnsiteSystem DesignCapacity PlanningSecurity - AtlassianMediumData ScientistExpand Internationally: Data and Strategy for Market Entry
Expand Internationally: Data and Strategy for Market Entry evaluates behavioral evidence, ownership, communication, trade-offs, and measurable outcomes in a realistic interview setting. A strong answer states assumptions, handles edge cases, explains trade-offs, and shows how to validate the result clearly.
Behavioral & LeadershipOnsite - AtlassianMediumSoftware EngineerExplain a Project Architecture Through a Technical Deep Dive
Prepare an architecture deep dive with an end-to-end diagram, component ownership, interface contracts, design alternatives, and failure-recovery evidence.
Behavioral & LeadershipOnsite - AtlassianMediumMachine Learning EngineerFind LCA in a tree and extend to a DAG
This problem tests your understanding of tree traversal, graph theory, and how to generalize path-finding algorithms from trees to directed acyclic graphs (DAGs).
Coding & AlgorithmsOnsiteGraphsLCATrees - AtlassianHardMachine Learning EngineerFind a secret word using match feedback
Design an optimal querying strategy to identify a secret word from a candidate vocabulary using exact-match character feedback under a strict query budget.
Coding & AlgorithmsOnsiteAlgorithmsMinimaxInformation Theory - AtlassianMediumSoftware EngineerStore a hierarchy and return all children
This question evaluates understanding of hierarchical data modeling, REST API design, database schema choices (e.g., adjacency list vs alternatives), and systems-level concerns like scalability, pagination for large subtrees, and cycle prevention.
System DesignOnsite
Asana
Atlassian