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Software Engineer 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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- 11
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Showing 1051–1080 of 2810 results
- GoogleMediumSoftware EngineerCount Clusters of 2D Points Within a Radius
This problem tests your ability to model geometric data as a graph and identify connected components using traversal algorithms or Disjoint Set Union (DSU).
Coding & AlgorithmsTechnical ScreenGraphsGeometryDFS/BFS - GoogleMediumSoftware EngineerCount Connected Clusters of Two-Dimensional Points
Tests modeling geometric proximity as a graph problem, using Disjoint Set Union or graph traversal to identify connected components while ensuring exact integer arithmetic and handling duplicate coordinates.
Coding & AlgorithmsTechnical Screengraphsunion-findgeometry - GoogleMediumSoftware EngineerCount Prefix-Matching Simple Paths in a Labeled Graph
Tests graph traversal, bitmask dynamic programming or backtracking with pruning, and prefix counting on small labeled graphs.
Coding & AlgorithmsTechnical Screengraphbitmask-dpbacktracking - GoogleMediumSoftware EngineerDecide string transform with directional tokens and walls
Decide string transform with directional tokens and walls evaluates algorithm design, data structures, correctness, complexity, edge cases, and implementation details in a realistic interview setting. A strong answer states assumptions, handles edge cases, explains trade-offs, and shows how to validate the result clearly.
Coding & AlgorithmsTechnical Screen - GoogleHardSoftware EngineerDefend the Trade-Offs in One Project
This question assesses a candidate's ability to articulate the engineering rationale behind technical decisions, balancing trade-offs against project constraints and evolving requirements.
Behavioral & LeadershipTechnical ScreenBehavioralSystem DesignEngineering Leadership - GoogleMediumSoftware EngineerDescribe Key Behavioral Examples
This question evaluates interpersonal and leadership competencies—including communication, conflict resolution, teamwork, accountability, problem-solving, and adaptability—by eliciting concrete behavioral examples from past internships or projects.
Behavioral & LeadershipTechnical Screen - GoogleMediumSoftware EngineerDescribe teamwork and personal achievements
This question evaluates teamwork, leadership, problem-solving, communication, and self-awareness by probing examples of helping an underperforming teammate, managing challenging projects, and describing personal achievements.
Behavioral & LeadershipTechnical Screen - GoogleMediumSoftware EngineerDesign A Drive-Style Usage Quota Limiter
Design a distributed storage quota accounting and enforcement service for a cloud drive platform that handles concurrent multi-part uploads, deletions, retries, and usage drift reconciliation.
System DesignTechnical ScreenDistributed SystemsCloud StorageConcurrency - GoogleHardSoftware EngineerDesign A/B testing platform
This question evaluates a candidate's competency in designing scalable, privacy-compliant A/B testing platforms, covering deterministic bucketing, traffic allocation, telemetry and event pipelines, experiment governance, and applied statistical methods in the Analytics & Experimentation domain.
Analytics & ExperimentationTechnical Screen - GoogleMediumSoftware EngineerDesign Interval Membership Queries with Linear, Logarithmic, and Constant-Time Options
Design interval membership with linear scans, predecessor binary search, or bounded-universe direct addressing, comparing insertion, memory, adjacency, inclusive boundaries, overflow safety, and workload fit.
Software Engineering FundamentalsTechnical Screen - GoogleMediumSoftware EngineerDesign Tic-Tac-Toe With K Players
This question evaluates a candidate's ability to design and implement a game engine, manage board state and turn logic, validate moves, and apply efficient data structures and algorithms for win detection within the Coding & Algorithms domain.
Coding & AlgorithmsTechnical Screen - GoogleMediumSoftware EngineerDesign a Music Recommendation System with an LLM Agent
Design a large-scale music recommendation system combining traditional multi-stage ranking with an LLM agent for natural language intent parsing and contextual explanations.
ML System DesignTechnical ScreenRecommender SystemsLLM AgentsInformation Retrieval - GoogleMediumSoftware EngineerDesign a Security Monitoring Framework
Design a scalable, low-overhead security monitoring framework capable of capturing OS-level events via eBPF across a massive cloud fleet, streaming telemetry, and detecting malicious activity in near-real-time.
System DesignTechnical ScreenSecurityeBPFStreaming - GoogleHardSoftware EngineerDesign a Task Scheduler for Opaque Long-Running GPU Jobs ("Design Sora")
This question tests your ability to design a distributed job scheduler and execution engine for long-running, compute-intensive GPU workloads. It evaluates distributed system fundamentals including multi-tenant fairness, gang scheduling, node failure recovery, and resource utilization.
System DesignTechnical ScreenDistributed SystemsGPU SchedulingResource Management - GoogleHardSoftware EngineerDesign a key-value store
This question tests the ability to design a distributed, scalable, and fault-tolerant key-value store while addressing challenges related to data distribution, consistency, and storage engine implementation.
System DesignTechnical ScreenDistributed SystemsStorageScalability - GoogleMediumSoftware EngineerDesign a logger that returns top-K messages
Design an in-memory message logger that records timestamped messages and queries the top-K most frequent messages within any given time range.
Coding & AlgorithmsTechnical Screendesignhash-tableheap - GoogleHardSoftware EngineerDesign a prioritized log manager with eviction
Design a prioritized log manager with eviction evaluates requirements, scale assumptions, API/data design, architecture, trade-offs, failure modes, and rollout in a realistic interview setting. A strong answer states assumptions, handles edge cases, explains trade-offs, and shows how to validate the result clearly.
System DesignTechnical Screen - GoogleMediumSoftware EngineerDesign a rolling hit counter API
This question tests the ability to design an efficient data structure for time-series aggregation using a sliding window approach with O(1) time complexity per operation.
Coding & AlgorithmsTechnical ScreenData StructuresConcurrencyDesign - GoogleMediumSoftware EngineerDesign a waitlist system with top/bottom K
This problem tests your ability to design a dynamic waitlist using efficient data structures to support logarithmic time complexity for insertions, deletions, and ranking operations.
Software Engineering FundamentalsTechnical ScreenData StructuresDesignComplexity Analysis - GoogleMediumSoftware EngineerDesign an Agent for Internal Document Search
Design an enterprise search agent that provides grounded, cited answers over internal knowledge repositories while strictly enforcing access control lists (ACLs) and handling prompt injection.
ML System DesignTechnical ScreenRAGSearch SystemsLLM Agents - GoogleMediumSoftware EngineerDesign an LLM Agent for Manufacturing: Production Status, Work Orders and Quotes
Design an LLM-powered agent for a manufacturing business that checks production progress, opens work orders and gives customers price quotes. Probes tool design for reads and writes, how to stop the agent from inventing statuses or prices, and how to enforce user permissions outside the model.
ML System DesignTechnical Screen - GoogleHardSoftware EngineerDesign anomaly detection and response platform
This question evaluates a candidate's competency in designing end-to-end ML-driven systems that handle large-scale, low-latency OS snapshot ingestion, binary anomaly detection, decisioning and action orchestration with multi-tenant security, auditability, and failure rollback.
ML System DesignTechnical Screen - GoogleMediumSoftware EngineerDesign at-least-once notification delivery
This question evaluates expertise in reliable distributed systems design, including at-least-once delivery semantics, idempotency and deduplication strategies, retry and dead-letter handling, API and message-schema design, ordering and out-of-order handling, and scalability for high-throughput multi-tenant notification platforms.
System DesignTechnical Screen - GoogleHardSoftware EngineerDesign deduplicated file storage on filesystem
This question evaluates system design and storage engineering competencies, including multi-tenant isolation, authentication and authorization models, content-addressable storage and deduplication, reference counting and garbage collection, concurrency control, API surface design, and scaling across nodes using only filesystem primitives.
System DesignTechnical Screen - GoogleHardSoftware EngineerDesign distributed log storage service
This question evaluates a candidate's expertise in designing distributed storage systems, covering partitioned append-only logs, high-throughput writes and reads, replication, retention, indexing, compaction, leader/follower roles, and recovery mechanisms.
System DesignTechnical Screen - GoogleHardSoftware EngineerDesign distributed transactions protocol
This question evaluates a candidate's understanding of distributed transactions, coordination protocols, fault tolerance, consistency, and reliability across microservices and databases.
System DesignTechnical Screen - GoogleHardSoftware EngineerDesign executable notebook service APIs
This question evaluates a candidate's competence in designing secure, scalable systems for executing user-supplied code, covering API design, sandboxing and isolation, dependency management, resource limits, scheduling, and streaming proxies for logs/results.
System DesignTechnical Screen - GoogleHardSoftware EngineerDesign high-throughput event subscription system
This question evaluates a candidate's ability to design scalable, fault-tolerant event ingestion and subscription architectures, covering distributed systems, high-throughput messaging, content-based filtering, multi-tenant isolation, API/webhook design, delivery semantics, backpressure, sharding, security, and operational observability.
System DesignTechnical Screen - GoogleHardSoftware EngineerDesign key management service
This question evaluates system design and security competencies—specifically cryptographic key lifecycle management, HSM integration, access control, auditing, multi-tenant isolation, and scalability—within the System Design domain.
System DesignTechnical Screen - GoogleMediumSoftware EngineerDesign nearest-available-taxi lookup with updates
This question assesses the ability to design a high-concurrency geospatial system that maintains real-time state for moving entities and supports low-latency queries.
System DesignTechnical ScreenGeospatialScalabilityCaching
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