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Software Engineering Fundamentals 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
- Questions
- 546
- Companies
- 11
- Topics
- 8
- Languages
Showing 61–90 of 625 results
- AppleEasySoftware EngineerStore Open-Hours Query: Weekdays, Split Shifts and Overnight Windows in Java
A progressive Java coding exercise that asks whether a store is open at a given time as its schedule grows from one daily window to selected weekdays, several windows per day, and overnight windows that cross midnight and wrap from Sunday to Monday. It tests time modeling, boundary handling, and keeping evolving code readable.
Software Engineering FundamentalsTechnical Screen - AppleMediumSoftware EngineerTime-to-Live Token Manager With Renewal and a Heavy Concurrent Read/Write Follow-up
Implement a token manager in which each token expires a fixed time-to-live after it is generated or renewed, renewals extend only unexpired tokens, and a query counts live tokens. The follow-up asks how to keep it correct and fast under heavy concurrent reads and writes.
Software Engineering FundamentalsTechnical Screen - AppleMediumSoftware EngineerTroubleshoot a Failing Kubernetes Pod: Where to Start and What to Check
Explain how to troubleshoot a Kubernetes pod that has a problem, starting from its status, container states and events. Tests mapping Pending, ImagePullBackOff, CrashLoopBackOff, OOMKilled and not-Ready states to likely causes, using logs, debug containers and node checks, and separating mitigation from root cause.
Software Engineering FundamentalsTechnical Screen - AppleHardMachine Learning EngineerWalk Through an Agentic PDF Evaluation Codebase
This question tests your ability to navigate, critique, and extend a modular codebase designed for evaluating agentic PDF processing pipelines, focusing on evaluation metrics and robust system architecture.
Software Engineering FundamentalsTechnical ScreenAgentic-WorkflowsEvaluationLLM-Systems - AppleEasySoftware EngineerWrite a Usage Example for a Resource-Owning C++ Class and Explain Its Semantics
A C++ internship screen exercise: read an unfamiliar class that owns a heap array and write an example program showing callers how to use it correctly. It tests code comprehension and C++ fundamentals such as RAII, deleted copy operations, move semantics, noexcept, explicit constructors and const-correctness.
Software Engineering FundamentalsTechnical Screen - Applied IntuitionMediumMachine Learning EngineerDesign Ordered CUDA Reduction
This question evaluates understanding of parallel GPU programming, deterministic reduction ordering, and numerical stability in floating-point arithmetic, within the domain of parallel algorithms, GPU/CUDA programming, and numerical computing for a Software Engineering Fundamentals / Machine Learning Engineer role.
Software Engineering FundamentalsTechnical Screen - Applied IntuitionMediumSoftware EngineerDesign Parsing Boundaries for Interdependent Message Types
Design parsing and type-resolution boundaries for interdependent message definitions, clarifying schema versus encoded input, forward references, recursion, and validation.
Software Engineering FundamentalsTechnical Screen - Applied IntuitionMediumSoftware EngineerDesign a C++ Ring Buffer for Producer-Consumer Use
This problem tests your understanding of multi-threaded synchronization primitives, memory ordering, and circular buffer logic in a low-latency environment.
Software Engineering FundamentalsTechnical ScreenC++ConcurrencyLock-free - Applied IntuitionMediumSoftware EngineerDesign a Streaming TLV Message Reassembler in C
Implement an in-memory reassembler in C that reconstructs out-of-order chunked TLV messages, validates chunk bounds and duplicates, and detects message completion.
Software Engineering FundamentalsTechnical ScreenCSystems ProgrammingNetworking - Applied IntuitionMediumSoftware EngineerDesign a Transactional Key-Value Store
This problem tests the ability to design an in-memory key-value store that supports nested transactions, including atomic commits, rollbacks, and precise state management across layers.
Software Engineering FundamentalsTechnical ScreenData StructuresSystem DesignTransactions - Applied IntuitionMediumSoftware EngineerLocate Cars with a Boolean Square-Scan API
Implement and analyze a quadtree-based search algorithm that locates all vehicles on a 2D grid using a Boolean square-scan API.
Software Engineering FundamentalsTechnical Screenrecursiondivide-and-conquerquadtree - Applied IntuitionMediumSoftware EngineerProtobuf-Style Schema: Look Up Message Sizes and Field Types, Then Parse the Schema
Implement size and field-type lookups over a simplified protobuf-style schema in which messages embed other messages, then write the parser that builds the schema from raw text. Tests schema data modeling, handling of nested, cyclic and unknown message references, clear error behavior, and robust parsing of proto-like definitions.
Software Engineering FundamentalsTechnical Screen - Applied IntuitionHardSoftware EngineerScale a Grid Fire-Spread Simulation Past What Fits in Memory
Scale a working small-grid cellular-automaton fire-spread simulation to a dense multi-million-cell board that no longer fits in memory, by computing each generation with a three-row sliding window read from one file and streamed into another. Tests memory estimation and disk-backed algorithm redesign without changing the core update rule.
Software Engineering FundamentalsTechnical Screensimulationstreamingfile-io - AristaEasySoftware EngineerExplain C printf pointers and memory layout
This question evaluates understanding of C pointer semantics, printf format-specifier behavior, memory layout and allocation differences, and practical debugger usage for inspecting addresses and bytes, within the Software Engineering Fundamentals domain.
Software Engineering FundamentalsTechnical Screen - AristaHardSoftware EngineerImplement and Defend a Generic C++ Stack
Implement a dynamically growing generic C++ stack with raw storage and correct object lifetime management. The deep-dive covers self-referential insertion, exception safety, move ownership, allocation mechanisms, reference validity, capacity overflow, and the distinction between language guarantees and ABI behavior.
Software Engineering FundamentalsTechnical Screen - ArizeMediumSoftware EngineerCoordinate Three Threads to Print an Ordered Sequence
This problem tests knowledge of multi-threaded synchronization, specifically the use of condition variables and mutexes to enforce strict ordering among three distinct threads.
Software Engineering FundamentalsTechnical ScreenConcurrencyMultithreadingSynchronization - AsanaMediumSoftware EngineerDesign a Testable 2048 Game Engine
This problem tests object-oriented design principles, state management, and the ability to decouple business logic from external dependencies like random number generation to ensure testability.
Software Engineering FundamentalsTechnical ScreenOOPDesign PatternsTestability - AsanaMediumSoftware EngineerDesign an Extensible Animal-Chess Game Engine
This question tests your ability to design a decoupled, extensible object-oriented system that separates game state, rule validation, and game flow logic.
Software Engineering FundamentalsTechnical ScreenObject-Oriented DesignDesign PatternsSoftware Architecture - AsanaMediumSoftware EngineerExplain code complexity and design two games
This multi-part question evaluates code comprehension and algorithmic complexity analysis alongside object-oriented design competencies for interactive applications, covering skills in analyzing time and space complexity, class modeling, API design, and state management.
Software Engineering FundamentalsTechnical Screen - AsanaMediumSoftware EngineerModel and Solve a Rectangular Jigsaw Puzzle
This problem tests object-oriented modeling skills and the ability to implement a backtracking algorithm with state pruning for a combinatorial search task.
Software Engineering FundamentalsTechnical ScreenBacktrackingOOPRecursion - AtlassianHardFrontend EngineerBuild a 2x3 React Feed Grid from Static Data, Then from an API, and Explain Your Hooks
A front-end coding exercise: show feed items with an id, text and creation time in a two-row, three-column React grid, first from static data and then from a provided API. It tests CSS grid layout, data fetching with loading and error states, effect cleanup, and how clearly the candidate explains the React hooks they use.
Software Engineering FundamentalsTechnical Screen - AtlassianMediumFrontend EngineerBuild a Social Feed List in HTML/CSS, Then Render It from a Mock API
A two-stage front-end coding exercise: build a Twitter-style social feed list with HTML and CSS, then render it from a mock API. It tests semantic markup, a resilient card layout, asynchronous loading with loading and error states, and safe rendering of user-generated text.
Software Engineering FundamentalsTechnical Screen - AtlassianMediumSoftware EngineerDesign a Music Player with Queue, Loop, and Shuffle
Design music-player objects and state transitions for play, pause, queue, looping, and shuffle, with stubbed audio and deterministic tests.
Software Engineering FundamentalsTechnical Screen - AtlysMediumSoftware EngineerDesign a Splitwise-Style Expense Splitter with Minimum-Transaction Debt Settlement
Design a Splitwise-style shared-expense app, covering functional and non-functional requirements, API design and core entities, then implement settle() to produce payments that clear every balance and settle_optimally() to use the fewest transactions. Tests object-oriented design, exact money handling, and reasoning about optimality and complexity.
Software Engineering FundamentalsTechnical Screen - AtlysMediumSoftware EngineerDesign a Tour-Expense Splitter That Minimizes Payments
Design a shared-expense tracker for a touring band: members log who paid for what and how it was split, the app maintains running balances, and two settlement modes produce the payments needed to zero every balance -- a simple pairwise payoff and an optimal one using the fewest transactions. Tests API/entity design plus a min-cash-flow-style algorithm.
Software Engineering FundamentalsTechnical Screensystem-designgraphsgreedy - BasetenHardSoftware EngineerBuild a Crash-Consistent Single-Server Key-Value Store
Design and implement a thread-safe, crash-consistent key-value storage engine that persists byte-string records to an append-only log on disk, recovers from partial writes, and supports tombstones.
Software Engineering FundamentalsTechnical Screensystems-programmingstorage-enginecrash-consistency - BasetenHardSoftware EngineerParallelize Blocking API Calls with a Thread Pool
Implement a robust, bounded concurrent batch runner that parallelizes blocking calls while preserving input order, handling errors, and enforcing timeouts.
Software Engineering FundamentalsTechnical ScreenConcurrencyPythonMultithreading - Bilt RewardsMediumSoftware EngineerRepair and Extend a Transaction Reward Processor
Implement and debug a layered transaction reward processing engine that calculates category-based points, applies promotional multipliers, enforces monthly qualification thresholds, and maintains strict idempotency.
Software Engineering FundamentalsTechnical ScreenSoftware EngineeringData StructuresSystem Design - BloombergMediumSoftware EngineerDesign a Card Deck with Shuffling, Dealing, and Five-Card Poker Comparison
Design an object-oriented card deck with unbiased shuffling, atomic dealing, and complete five-card poker rankings, kickers, ace-low straights, and ties.
Software Engineering FundamentalsTechnical Screen - BloombergMediumSoftware EngineerDesign an in-memory TODO list API
This problem tests your ability to design a thread-safe, in-memory API for managing tasks, focusing on selecting efficient data structures for retrieval and update operations.
Software Engineering FundamentalsTechnical ScreenAPI DesignConcurrencyHash Maps
Apple
Applied Intuition
Arista
Asana
Atlassian
Baseten
Bloomberg