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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.
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Showing 631–660 of 5874 results
- AnthropicMediumSoftware EngineerAI Safety Culture Round: Risk Views, Personal Ethics, and Changing Your Mind
A senior software engineer culture interview at an AI company that probes your honest views on AI safety risks, how your personal moral principles hold up when acting on them has a cost, and whether you can genuinely change your mind. It tests candor over sycophancy, calibrated reasoning, and composure when the interviewer challenges your position.
Behavioral & LeadershipOnsite - AnthropicMediumSoftware EngineerAccount Balance with Expiring Grants
Design a data structure that tracks time-limited credit grants, prioritizes consuming grants that expire earliest, and efficiently manages expired funds.
Coding & AlgorithmsOnsiteHeapGreedyDesign - AnthropicMediumSoftware EngineerAnswer AI Safety Behavioral Prompts
This question evaluates behavioral and leadership competencies for a software engineering role, including alignment with organizational values, ethical judgment on AI safety, communication, mentorship, and influence on project and product decisions within the Behavioral & Leadership domain.
Behavioral & LeadershipOnsite - AnthropicMediumSoftware EngineerAnswer Culture and Project Questions
This question evaluates a software engineer's behavioral competencies—ownership, judgment, communication, and values alignment—by prompting story-driven examples about past projects, difficult tradeoffs, and motivation for joining an AI safety–oriented research organization.
Behavioral & LeadershipOnsite - AnthropicHardSoftware EngineerAnswer culture-fit reflection questions
This question assesses a candidate's ability to demonstrate intellectual humility, accountability, and the capacity for self-directed growth in high-stakes technical environments.
Behavioral & LeadershipOnsiteAccountabilitySelf-AwarenessGrowth-Mindset - AnthropicMediumSoftware EngineerAnswer general fit and AI safety questions
Answer general fit and AI safety questions 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 - AnthropicMediumSoftware EngineerApply bitwise tricks for performance
This question evaluates proficiency with bitwise operations, branchless programming, low-level performance optimizations, and microarchitectural reasoning about pipeline stalls, instruction-level parallelism, and cache behavior.
Coding & AlgorithmsOnsite - AnthropicHardSoftware EngineerAssess an AI Research Organization and Explain Your Fit
Tests a candidate's understanding of frontier AI research labs, their ability to critically evaluate safety-driven operational decisions, and how well their engineering background aligns with safety-focused development.
Behavioral & LeadershipHR ScreenAI SafetyCulture FitBehavioral - AnthropicMediumSoftware EngineerBanking System Simulation
This question evaluates a candidate's ability to design a stateful, multi-level simulation system that processes a time-ordered stream of operations. It tests object-oriented design, incremental complexity management, and handling of deferred effects like scheduled cashback credits. Such object-modeling questions are commonly used in coding interviews to assess practical application of data structures under evolving requirements.
Coding & AlgorithmsOnsite - AnthropicMediumSoftware EngineerBatch Image Resize and Rotate with Pillow: Exact Dimensions, Parallelism, Bad Files
A three-part Python image processing exercise: resize and rotate images with Pillow while predicting the exact printed dimensions, speed up a large batch with multiprocessing and a staged pipeline, then keep the batch running through corrupt, oversized and unsupported files. It tests API precision, parallelism and robustness.
Software Engineering FundamentalsOnsite - AnthropicHardSoftware EngineerBatch-Apply Pillow Image Transforms, Then Parallelize: Processes vs Threads
A Python coding exercise that applies a given sequence of Pillow transforms to a folder of cat images and then asks you to cut the total processing time. It tests clean per-image code, reasoning about CPU-bound work and the GIL, choosing between processes and threads, and sizing a worker pool.
Software Engineering FundamentalsOnsite - AnthropicHardSoftware EngineerBuild a Progressive Banking Ledger
Design and implement an in-memory, timestamped banking ledger supporting atomic transfers, cashback, scheduled payments, account merges with alias resolution, and historical balance lookups.
Coding & AlgorithmsOnsitedesignheapbinary-search - AnthropicHardSoftware EngineerBuild a Progressive Cloud Storage System
Design and implement an in-memory cloud storage engine supporting user quotas, file operations, compression/restoration semantics, and glob-based search.
Coding & AlgorithmsOnsiteData StructuresSystem DesignOOP - AnthropicHardSoftware EngineerBuild a Progressive Employee Tracker
Design an in-memory attendance and payroll tracking system that manages shift lifecycles, deferred rate promotions, overlapping bonus windows, and duration rankings.
Coding & AlgorithmsOnsiteIntervalsBinary SearchObject-Oriented Design - AnthropicMediumSoftware EngineerBuild a Resize-and-Rotate Image Pipeline with Multiprocessing
Design a Pillow resize-and-rotate pipeline with explicit transform semantics, bounded multiprocessing, per-image failures, and safe output publication.
Software Engineering FundamentalsOnsite - AnthropicMediumSoftware EngineerBuild a concurrent web crawler
This question tests your ability to design a concurrent crawler that manages shared state across multiple threads, handles URL de-duplication, and prevents infinite cycles during graph traversal.
Coding & AlgorithmsTechnical ScreenConcurrencyMultithreadingGraph Traversal - AnthropicHardSoftware EngineerBuild a least-recently-used cache
This problem tests your ability to implement an efficient LRU cache using a combination of a hash map and a doubly linked list to achieve constant-time operations.
Coding & AlgorithmsOnsiteData StructuresHash MapLinked List - AnthropicHardSoftware EngineerCalculate Streaming Token Usage Costs
Implement a robust token usage billing manager that accumulates streaming chunk deltas and non-streaming totals, enforces strict schema and sanity checks, and avoids floating-point precision loss.
Coding & AlgorithmsOnsiteAlgorithmsData StructuresSystem Design - AnthropicMediumSoftware EngineerCompare Threads and Processes for Image Processing
Tests operating system concurrency fundamentals, memory ownership models, IPC serialization overhead, and empirical benchmarking strategies for CPU-bound image processing pipelines.
Software Engineering FundamentalsOnsiteconcurrencyoperating-systemsperformance - AnthropicHardSoftware EngineerCompute Exclusive Time from Stack Events
Compute aggregate exclusive execution time for each function from nested start and end events, including recursive calls. Use a stack over a validated single-threaded trace, apply half-open time intervals, and return deterministic sorted results.
Coding & AlgorithmsOnsite - AnthropicHardSoftware EngineerCompute a Global Mode Across Distributed Partitions
Compute an exact distributed mode with local frequency combining, key-based reducers, global winner selection, communication accounting, and skew-aware recovery.
Software Engineering FundamentalsOnsite - AnthropicHardSoftware EngineerCompute an Exact Distributed Median with Limited Communication
Compute an exact distributed median through global rank selection and count reductions, accounting for integer range, local search work, communication rounds, and even-size semantics.
Software Engineering FundamentalsOnsite - AnthropicMediumSoftware EngineerCompute exclusive times and call stack from logs
This question evaluates a candidate's ability to process single-threaded execution logs and compute per-function exclusive durations while reconstructing the call stack at a given timestamp, testing stack simulation, interval reasoning, timestamp tie-handling, parsing of time-stamped events, and algorithmic complexity analysis.
Coding & AlgorithmsTechnical Screen - AnthropicMediumSoftware EngineerCompute matrix trace and support updates
This question evaluates proficiency in matrix manipulation, incremental updates, and complexity analysis, specifically maintaining main-diagonal and anti-diagonal sums under point updates.
Coding & AlgorithmsTechnical Screen - AnthropicHardSoftware EngineerConvert Sampled Call Stacks into Start and End Events
Convert sampled call stacks to inferred start/end events using ordered common prefixes, recursive frames, explicit final-open behavior, and last-N history limitations.
Coding & AlgorithmsOnsite - AnthropicMediumSoftware EngineerConvert Sampled Call Stacks into Timestamped Function Start and End Events
Convert a sampling profiler's timestamped call stacks into function start and end events for a trace viewer, explain why ends are emitted innermost first and starts outermost first, then redesign the converter for an unbounded stream. It tests stack diffing, recursion handling and streaming state.
Software Engineering FundamentalsOnsite - AnthropicHardSoftware EngineerConvert Stack Samples into Trace Events
This problem tests your ability to manipulate tree-like path structures and manage state transitions using a stack, specifically focusing on efficiently calculating diffs between consecutive call stacks.
Coding & AlgorithmsOnsiteArraysStackStrings - AnthropicHardSoftware EngineerConvert Streaming Call-Stack Samples into Function Events
Tests the ability to process discrete call-stack snapshots into properly nested, ordered function start and end events using longest common prefix analysis and stack unwinding.
Coding & AlgorithmsTechnical Screenstackalgorithmsprofiling - AnthropicHardSoftware EngineerCrawl Same-Domain Links
This question evaluates understanding of web crawling and link traversal algorithms, including URL normalization, same-domain filtering, deduplication, and cycle-safe graph traversal.
Coding & AlgorithmsTechnical Screen - AnthropicHardSoftware EngineerDebug Python LRU Cache-Key Construction
Implement and debug a thread-safe, bounded LRU memoization decorator that generates canonical cache keys across equivalent argument patterns, distinguishes conflicting types, and avoids caching exceptions.
Software Engineering FundamentalsOnsitepythonconcurrencycaching
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