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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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- 546
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- 11
- Topics
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Showing 2281–2310 of 5874 results
- GoogleEasySoftware EngineerDescribe conflict, ambiguity, and process improvement
This question evaluates interpersonal and leadership competencies for a Software Engineer role—specifically conflict resolution, handling ambiguity, process improvement, cross-functional collaboration, and the ability to articulate technical decisions.
Behavioral & LeadershipOnsite - GoogleMediumSoftware EngineerDescribe manager and cross-team communication
This question evaluates cross-functional communication, stakeholder management, expectation-setting, and risk escalation competencies in an engineering context.
Behavioral & LeadershipOnsite - 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 Calendar Event Conflict Handling
This question evaluates a candidate's competence in designing scalable calendar event and conflict-handling systems, focusing on data modeling, time semantics (time zones and recurrence), concurrency control, and distributed-system trade-offs, and falls under the System Design domain.
System DesignOnsite - GoogleMediumSoftware EngineerDesign Extensible Spreadsheet Aggregation APIs
Design reusable spreadsheet sum, minimum, and maximum APIs with operator state, shared cell evaluation, error policies, and extensible aggregation.
Software Engineering FundamentalsOther - 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 LLM Summarization of E-commerce Reviews with Prompt-Injection and PII Defenses
A system design question about an e-commerce platform that ingests customer reviews and uses an LLM to summarize them for an internal dashboard. It probes the ingestion and summarization pipeline, trust and safety filtering, data sanitization and PII redaction, and defenses against prompt injection hidden in review text.
System DesignOnsite - 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 Billing-Token Rate Limiter for AI Agents
Design a distributed rate limiter and quota enforcement service tailored for AI agent workloads where consumption is measured in variable billing tokens rather than fixed request counts.
System DesignOnsiteDistributed SystemsRate LimitingAI Infrastructure - GoogleMediumSoftware EngineerDesign a Bookshelf with Book CRUD and a Stable Bookmark
Tests object-oriented design, separation of entity identity from physical layout, reference integrity during deletions, and optimistic concurrency for content updates.
Software Engineering FundamentalsOnsiteObject-Oriented DesignData StructuresConcurrency - GoogleMediumSoftware EngineerDesign a CI system that runs one million tests in ten minutes
Design a continuous integration system that builds a change and runs about one million tests within a ten-minute budget. Tests capacity estimation, sharding and scheduling by test duration, artifact distribution, caching and test selection, flaky tests, failure handling, and cost versus latency trade-offs.
System DesignOnsite - GoogleHardSoftware EngineerDesign a Collaborative Notes Service
Design a collaborative notes backend with CRUD, WebSocket editing, operation logs, snapshots, CRDT or Operational Transformation conflict handling, offline sync, note-based scaling, permissions, and recovery.
System DesignOnsite - GoogleMediumSoftware EngineerDesign a Dormitory Room-Assignment System (OOD)
This question evaluates object-oriented design skills by requiring a class decomposition of a room-assignment system, testing entity modeling, responsibility separation, and capacity-safe data structures. It is commonly used in software engineering interviews to assess practical OOD fluency and the ability to handle edge cases like demand exceeding supply.
Software Engineering FundamentalsOnsite - 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 - GoogleMediumSoftware EngineerDesign a System to Distribute Large ML Model Files Across a Serving Fleet
System design interview question from a senior software engineer loop at Google: design a system that distributes very large ML model files to a fleet of serving machines. It examines bandwidth reasoning, fan-out strategies, integrity verification, staged rollout and rollback, and recovery from failed or partial transfers.
System DesignOther - 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 - GoogleEasySoftware EngineerDesign a Variable Store With Nested Reference Substitution and Cycle Detection
Design a class that stores named variables and substitutes their values into text, where a stored value can reference other variables that must be expanded at any depth. It tests reference parsing, depth-first expansion with reuse of finished results, cycle detection with a clear error, and policies for undefined variables.
Software Engineering FundamentalsOnsite - GoogleMediumSoftware EngineerDesign a customer support agent dispatcher that handles mid-request breaks
Design and implement the core of a dispatcher that assigns waiting customers to available support agents, then extend it for an agent who is interrupted mid-request to take a break. Tests state modeling, queue and data structure choices, fair re-queuing, stale events and per-event complexity.
Software Engineering FundamentalsOnsite - GoogleHardSoftware EngineerDesign a distributed rate limiter
This question evaluates skills in distributed systems design, concurrency control, rate-limiting algorithms (token bucket and sliding window), distributed coordination and consistency, API design, and operational monitoring for scalability and fault tolerance.
System DesignOnsite - GoogleMediumSoftware EngineerDesign a global real-time notification system
This question assesses the ability to design a distributed, global-scale notification platform that handles massive throughput, multi-channel delivery, and reliability requirements.
System DesignOnsiteDistributed SystemsScalabilityReliability - 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 large-scale distributed rate limiter
This question tests the ability to design a high-throughput, distributed rate-limiting service that handles multi-tenancy, ensures low latency, and manages consistency trade-offs.
System DesignOnsiteDistributed SystemsScalabilityCaching - 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 - GoogleMediumSoftware EngineerDesign a multi-timer using single underlying timer
This question evaluates a candidate's ability to implement timer scheduling, resource multiplexing, and concurrency control using constrained system primitives, testing understanding of timers, event handling, data structures, and correctness under race conditions.
Software Engineering FundamentalsOnline Assessment - 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 - GoogleEasySoftware EngineerDesign a waitlist manager
This question tests your ability to design a waitlist system using efficient data structures to handle insertions, removals, and lookup operations.
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