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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 1–11 of 11 results
- AirwallexMediumBackend EngineerAI-Assisted Build: Tic-Tac-Toe Logic Grown Into a Frontend and Backend App
An AI-assisted coding exercise: build a two-player Tic-Tac-Toe game, then grow it into an application with a frontend and a backend while using AI tools. Tests correct game rules, server-side validation, API design, and the ability to understand, debug and verify AI-generated code.
Software Engineering FundamentalsOther - AsanaMediumSoftware EngineerObject-Oriented Design of a Two-Player Chess Game and Its Move Rules
A low-level design exercise asking for the classes, responsibilities and core code of a two-player chess program. It tests object modeling of pieces, board and game state, move validation including check and special moves, checkmate and stalemate detection, and keeping the design open to undo, network play or a computer opponent.
Software Engineering FundamentalsOther - 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 - MicrosoftMediumSoftware EngineerDesign and Implement a Worker Thread Pool with Futures and Shutdown
Low-level design and concurrency question: design and implement a fixed-size thread pool with task submission, futures that return results or errors, and graceful or cancelling shutdown. It tests lock and condition variable use, lost wake-ups, policies for rejected work, pool sizing and deadlocks between dependent tasks.
Software Engineering FundamentalsOther - MicrosoftMediumSoftware EngineerImplement a Priority Queue from Scratch with Custom Ordering and Stable Ties
Data structures question that asks you to build a priority queue from scratch with insert, peek, remove-top and size operations, a caller-supplied ordering and stable ties. It tests the choice of underlying structure, invariant-preserving insertion and removal, complexity analysis and edge-case handling.
Software Engineering FundamentalsOther - MicrosoftMediumSoftware EngineerLow-Level Design of a Logging Library Shared by Many Threads
Low-level design question about an in-process logging library that many threads call at the same time. It tests class modeling for loggers, records, formatters and output destinations, plus thread safety, the hand-off to a background writer, ordering, overflow behavior, failure isolation and clean shutdown.
Software Engineering FundamentalsOther - NetflixMediumSoftware EngineerRecommend New Friends from a Mutual-Friendship Graph and Scale the Approach
A problem-solving question about recommending new friends from a mutual friendship graph, worked mostly through discussion with a little code and pseudocode. It tests candidate generation and scoring with deterministic tie-breaks, cost in terms of node degree, handling highly connected users, and precomputing and refreshing suggestions at scale.
Software Engineering FundamentalsOther - NielsenMediumSoftware EngineerSpring Boot Internals and Java 21 Features Behind a Machine Coding Solution
A machine coding follow-up that drills into a Spring Boot service built during the round: startup, auto-configuration, dependency injection and proxies, then the Java 21 features that could improve it, such as sealed types with pattern matching and virtual threads. It tests framework depth and version-aware modern Java knowledge.
Software Engineering FundamentalsOther - RevolutMediumSoftware EngineerBuild a Java restaurant table booking service that prevents double bookings
A live Java coding exercise to build a restaurant table booking system while an AI assistant is allowed. It tests domain modeling, correct interval overlap logic for tables, a clear table allocation policy, thread safety, and how the candidate tests and stays in control of generated code under time pressure.
Software Engineering FundamentalsOther - SalesforceMediumSoftware EngineerMulti-tenant resource allocator: entity model, lifecycle state machine, optimistic locking
Low-level design question for a senior backend role: model a multi-tenant resource allocation module where customers request and release resources. It tests compact class design, an explicit resource lifecycle state machine, optimistic locking under concurrent requests, and tenant isolation enforced in code.
Software Engineering FundamentalsOther - StripeMediumSoftware EngineerReview a Production Pull Request and Calibrate Feedback to the Author's Seniority
A staff-level Stripe code review exercise: review a realistic production pull request, decide what blocks the merge, and write the actual comments. It tests review prioritization, scrutiny of tests and failure modes, comment severity labeling, and how you adapt the delivery of feedback for early-career versus senior authors.
Software Engineering FundamentalsOther
Airwallex
Asana
Google
Microsoft
Netflix
Nielsen
Revolut
Salesforce
Stripe