Software Engineering Fundamentals interview questions

Showing 61–90 of 1208 results

• Describe Linux and SQL experienceMedium

  Prepare an engineering interview answer on Linux commands and SQL experience. Covers shell workflows, log debugging, file and process commands, SQL joins, aggregations, CTEs, window functions, and translating business questions into queries.

  AmazonSoftware EngineerSoftware Engineering FundamentalsTechnical Screen
• Design a Debounced Product Search BoxMedium

  Design and implement an accessible, resilient product search-as-you-type component featuring debounced requests, race-condition handling via request cancellation, client-side caching, and keyboard navigation.

  AmazonFrontend EngineerSoftware Engineering FundamentalsOnsite
• Design a Linked Queue with Deletion Follow-UpsMedium

  Implement a linked-list-based FIFO queue supporting constant-time core operations, extended with value-based deletion methods that correctly maintain queue integrity and pointer boundaries.

  AmazonSoftware EngineerSoftware Engineering FundamentalsOnsite
• Design a Recursive File-Search APIHard

  Implement a secure, recursive file-search API that validates search boundaries, handles symlink cycles, catches permission errors gracefully, and returns deterministically sorted matching paths.

  AmazonSoftware EngineerSoftware Engineering FundamentalsHR Screen
• Design a Structure That Returns the Max of the Last k Inserted NumbersMedium

  A data structure design question: support inserting numbers into a stream and returning the maximum of the most recent k values. It covers a basic version with complexity analysis, reducing memory to O(k), comparing arrays, hash maps, linked lists and heaps, and building the optimal solution with a monotonic deque.

  AmazonSoftware EngineerSoftware Engineering FundamentalsOnsite
• Design a TTL-Aware LRU Cache Without Full Expiration ScansMedium

  Design a TTL-aware LRU cache with synchronized access, capacity eviction, and expiration heaps or timing wheels instead of full-table scans.

  AmazonSoftware EngineerSoftware Engineering FundamentalsOnline Assessment
• Design a Threshold-Based Database Partition RebalancerMedium

  This problem tests your ability to design a distributed system component that maintains cluster balance by dynamically splitting and merging data shards based on size thresholds.

  AmazonSoftware EngineerSoftware Engineering FundamentalsOnsite
• Design a Train Fare Calculator with Dynamic Stations and a Weekend Fare CapMedium

  An object-oriented design and coding exercise for a train line where each segment between adjacent stations costs one unit. It asks for a fare function between two stations, a route class that loads route data and supports adding stations at runtime, and a weekend rule that caps the total fare.

  AmazonSoftware EngineerSoftware Engineering FundamentalsOnsite
• Design a basic credit card systemMedium

  This problem tests object-oriented modeling and state management by requiring the design of a class structure that handles credit limits, transaction authorization, and balance tracking.

  AmazonSoftware EngineerSoftware Engineering FundamentalsTechnical Screen
• Design a pizza ordering systemMedium

  This question evaluates object-oriented design and software architecture skills, focusing on class modeling, responsibilities, relationships, state management, pricing, payment flows, and extensibility.

  AmazonSoftware EngineerSoftware Engineering FundamentalsTechnical Screen
• Design an Extensible Cinema Ticket Pricing EngineMedium

  Design an extensible cinema pricing engine with validated money and multiplier types, composable policies, explicit calculation and rounding, compatibility checks, versioned configuration, itemized quotes, and boundary tests.

  AmazonSoftware EngineerSoftware Engineering FundamentalsTechnical Screen
• Design an In-Memory Pub-Sub ModelMedium

  This question evaluates object-oriented design and API modeling skills, knowledge of messaging/pub-sub semantics, concurrency and thread-safety, and the ability to reason about extensibility for retries, persistence, and asynchronous delivery.

  AmazonSoftware EngineerSoftware Engineering FundamentalsTechnical Screen
• Design an Object-Oriented Shopping CartMedium

  Tests object-oriented design principles, domain modeling for monetary precision, extensible discount strategies, and thread-safe state mutations.

  AmazonSoftware EngineerSoftware Engineering FundamentalsTechnical Screen
• Design an advertiser metrics tracking platformMedium

  This question tests your ability to design a flexible, object-oriented system for ingesting, processing, and querying real-time advertising performance metrics.

  AmazonApplied ScientistSoftware Engineering FundamentalsTechnical Screen
• Design and Implement a Shopping Cart Object Model for an Online StoreMedium

  An object-oriented design exercise that asks you to model and implement a shopping cart for an online store, covering adding, updating and removing products and computing the total. It tests class boundaries, explicit edge-case policies, exact money handling and how cleanly the design extends to promotions.

  AmazonSoftware EngineerSoftware Engineering FundamentalsOnsite
• Design object model for an elevator systemMedium

  This question evaluates object-oriented design and system-architecture skills for modeling a multi-elevator control system, including class responsibilities, interactions, request flow, and scheduling policies.

  AmazonSoftware EngineerSoftware Engineering FundamentalsOnsite
• Diagnose Return Eligibility Scoring BugsHard

  This question evaluates debugging and root-cause analysis skills related to scoring logic, data integrity, feature engineering, and system reliability in return-eligibility services.

  AmazonSoftware EngineerSoftware Engineering FundamentalsOnline Assessment
• Evaluate an AI-Assisted Engineering WorkflowEasy

  This question tests the candidate's ability to critically analyze the integration of AI tools into the software development lifecycle by balancing productivity gains with code quality and reliability.

  AmazonSoftware EngineerSoftware Engineering FundamentalsTechnical Screen
• Explain Aurora-style internals: WAL, MVCC, replication, recoveryHard

  This question tests your conceptual understanding of how log-structured storage engines, like Amazon Aurora, decouple the database log from the data pages to achieve low-latency replication and fast recovery.

  AmazonSoftware EngineerSoftware Engineering FundamentalsTechnical Screen
• Explain a GenAI Use Case and Learn from a FailureMedium

  Tests your ability to critically analyze a production Generative AI architecture, dissect a technical failure or performance degradation, and demonstrate rigorous root-cause analysis alongside validated engineering remediations.

  AmazonSoftware EngineerSoftware Engineering FundamentalsOnsite
• Fix a Broken Podcast Episode Search Against Five Behavior RulesHard

  Fix a broken podcast episode search function so it matches substrings case-insensitively, supports searching by title, host, or both, sorts results correctly, and excludes unpublished episodes.

  AmazonSoftware EngineerSoftware Engineering FundamentalsOnline Assessment
• Fix a Buggy Spring Boot Movie Search Against Five Search RulesHard

  From an Amazon online assessment: fix a buggy Spring Boot movie search backend so that search is partial-match and case-insensitive, can target titles, stars or all fields, sorts by popularity with further keys, and returns only published movies. It tests debugging layered code, query logic and test-first verification.

  AmazonSoftware EngineerSoftware Engineering FundamentalsOnline Assessment
• Fix the Password Reset WorkflowMedium

  Implement and debug a stateful password reset manager that handles token generation, time-to-live (TTL) expiry, brute-force attempt limits, and single-use token invalidation.

  AmazonSoftware EngineerSoftware Engineering FundamentalsOnline Assessment
• Generalize Dictionary MergingMedium

  Explain an approach to merging two dictionaries and generalizing it efficiently to k dictionaries, explicitly identifying the collision semantics that must be clarified.

  AmazonSoftware EngineerSoftware Engineering FundamentalsOnsite
• Implement Review Content ModerationMedium

  This problem tests your ability to design a content moderation service that efficiently checks for prohibited words and maintains a running count of violations per user using a stateful metadata store.

  AmazonSoftware EngineerSoftware Engineering FundamentalsOnline Assessment
• Implement a Single-Node Priority Pub/SubMedium

  This question evaluates understanding of concurrent system design, in-memory publish–subscribe semantics, prioritized delivery ordering, API and data structure selection, and thread-safety within the Software Engineering Fundamentals domain.

  AmazonSoftware EngineerSoftware Engineering FundamentalsOnsite
• Implement an Accessible Autocomplete Search ComponentMedium

  Design and implement an accessible, race-condition-resilient autocomplete search component in React or modern JavaScript, focusing on debounced queries, ARIA combobox semantics, and keyboard navigation.

  AmazonFrontend EngineerSoftware Engineering FundamentalsTechnical Screen
• Model an Extensible Employee Cost CalculatorMedium

  Model an extensible employee cost calculator combining salary, tax, benefits, and a signed location adjustment. Discuss precise money handling, explicit missing policies, canonical identifiers, versioned configuration, reproducible breakdowns, and boundary-focused tests.

  AmazonSoftware EngineerSoftware Engineering FundamentalsOnsite
• Predict JavaScript let and var BehaviorMedium

  Tests deep understanding of JavaScript variable declarations (var vs let), focusing on hoisting, the Temporal Dead Zone (TDZ), block vs function scoping, and per-iteration lexical bindings in asynchronous loops.

  AmazonFrontend EngineerSoftware Engineering FundamentalsOnsite
• Repair a Django Post-Creation Endpoint and Its React ContractMedium

  Implement and repair a Django REST Framework view and serializer for post creation to satisfy frontend React contract requirements, ensure atomic tag associations, and enforce authenticated author assignment.

  AmazonSoftware EngineerSoftware Engineering FundamentalsOnline Assessment