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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 3361–3390 of 5874 results
- MetaMediumSoftware EngineerSolve tree traversal and two-pointer problems
Solve tree traversal and two-pointer problems evaluates algorithm design, data structures, correctness, complexity, edge cases, and implementation details in a realistic interview setting. A strong answer states assumptions, handles edge cases, explains trade-offs, and shows how to validate the result clearly.
Coding & AlgorithmsOnsite - MetaMediumSoftware EngineerSolve tree view and parentheses cleanup
This question evaluates binary tree traversal and view-extraction skills for the right-side view problem and string-processing and minimal-edit balancing for the parentheses cleanup, probing competency in data-structure traversal, state tracking, and correctness under edge cases.
Coding & AlgorithmsTechnical Screen - MetaMediumSoftware EngineerSolve weighted pick and product except self
This question evaluates algorithm design and data-structure skills, focusing on weighted random selection and array aggregation for product computations within the Coding & Algorithms domain.
Coding & AlgorithmsOnline Assessment - MetaMediumSoftware EngineerSolve windowed duplicates and target expression
This question evaluates proficiency in windowed duplicate detection and time-space trade-offs for streaming or bounded-range scans, along with combinatorial expression generation and on-the-fly numeric evaluation using search, reflecting skills in algorithm design, data-structure selection, and numeric correctness.
Coding & AlgorithmsTechnical Screen - MetaMediumSoftware EngineerSolve word count, node, segmentation, stock tasks
This multipart question evaluates skills in tokenization and streaming text processing, generic rooted-tree data-structure design and traversal APIs, dictionary-based string segmentation (dynamic programming and prefix/prefix-structure optimization), and constrained algorithmic optimization for stock-trading problems.
Coding & AlgorithmsOnsite - MetaMediumSoftware EngineerSum Numbers Formed by Root-to-Leaf Paths
Tests traversal of a complete or sparse binary tree stored in an array, tracking path values to accumulate the total sum of numbers formed from root to leaf.
Coding & AlgorithmsOnsiteTreeDFSBinary Heap - MetaMediumSoftware EngineerTraverse binary tree by levels with constraints
This question evaluates binary tree traversal techniques, use of stacks as constrained data structures, predicate-based filtering of nodes, and the ability to argue algorithmic correctness and analyze time and space complexity.
Coding & AlgorithmsTechnical Screen - MetaMediumSoftware EngineerTraverse levels selecting nodes meeting a predicate
Traverse levels selecting nodes meeting a predicate evaluates algorithm design, data structures, correctness, complexity, edge cases, and implementation details in a realistic interview setting. A strong answer states assumptions, handles edge cases, explains trade-offs, and shows how to validate the result clearly.
Coding & AlgorithmsTechnical Screen - MetaMediumSoftware EngineerTroubleshoot a single-node web outage
This question tests your ability to diagnose a sudden service outage on a single-node web server and your ability to propose architectural changes to prevent future single points of failure.
System DesignTechnical ScreenTroubleshootingAvailabilitySRE - MetaMediumSoftware EngineerTroubleshoot a website outage with disk full
This question tests your systematic approach to diagnosing a production service outage caused by resource exhaustion and your ability to implement short-term and long-term mitigation strategies.
Software Engineering FundamentalsTechnical ScreenLinuxSystem AdministrationIncident Response - MetaMediumSoftware EngineerValidate Sorted Order Under a Custom Alphabet
This problem tests your ability to define custom comparison logic using a lookup table and verify if a list of strings adheres to a non-standard lexicographical ordering.
Coding & AlgorithmsTechnical ScreenArraysStringsSorting - MetaMediumSoftware EngineerValidate a simplified numeric string
This question evaluates string-parsing, formal-grammar validation, and edge-case reasoning competencies, including the ability to recognize valid numeric formats and to provide time and space complexity analysis.
Coding & AlgorithmsTechnical Screen - MetaMediumSoftware EngineerValidate parentheses and find k-th largest
This problem tests your ability to handle nested structures using a stack and your efficiency in order-based selection using heap operations.
Coding & AlgorithmsTechnical ScreenStackHeapQuickSelect - MetaMediumSoftware EngineerValidate word abbreviation and reconcile two abbreviations
Validate word abbreviation and reconcile two abbreviations evaluates algorithm design, data structures, correctness, complexity, edge cases, and implementation details in a realistic interview setting. A strong answer states assumptions, handles edge cases, explains trade-offs, and shows how to validate the result clearly.
Coding & AlgorithmsOnsite - MetaHardSoftware EngineerWalk through a resume deep dive
This question evaluates ownership, technical leadership, system design, and operational reliability by requiring an end-to-end deep dive into an infrastructure project covering problem definition, architecture, scaling (QPS, latency, storage), SLOs, incident response, and impact metrics.
Behavioral & LeadershipOnsite - MetaMediumSoftware EngineerWalk through resume and plan team success
This question evaluates leadership, impact-focused communication, problem-solving, prioritization, and cross-functional collaboration skills via an end-to-end resume walkthrough and a 90-day team success plan, and it sits in the Behavioral & Leadership category; the level of abstraction is practical application, emphasizing demonstrated impact and near-term execution. It is commonly asked in technical interviews to reveal a candidate's ability to articulate measurable accomplishments, explain difficult technical or organizational challenges, and present structured, outcome-oriented plans and metrics that indicate interpersonal influence and operational readiness.
Behavioral & LeadershipTechnical Screen - MetropolisMediumSoftware EngineerDeep-dive a cross-team technical project you led
This question evaluates leadership, cross-team collaboration, technical ownership, project management, and the ability to make architecture trade-offs, mitigate reliability/security/performance risks, and quantify outcomes.
Behavioral & LeadershipTechnical Screen - MetropolisMediumSoftware EngineerDescribe disagreement with leadership and your approach
This question evaluates interpersonal competencies such as conflict resolution, communication, stakeholder management and leadership judgment within a software engineering context.
Behavioral & LeadershipTechnical Screen - MetropolisMediumSoftware EngineerExplain how you use AI tools in development
This question evaluates a developer's familiarity with AI-assisted development tools, practical experience integrating them into workflows, and understanding of associated governance, security, and data-handling concerns.
Software Engineering FundamentalsTechnical Screen - MetropolisMediumSoftware EngineerIntroduce yourself and explain your job search goals
This question evaluates communication, self-presentation, articulation of career goals, alignment with role expectations, and the ability to address logistical constraints for a senior software engineering position.
Behavioral & LeadershipTechnical Screen - Micro1MediumSoftware EngineerCompare Promise.all, Promise.any, and Promise.allSettled
Analyze and compare the behavior of JavaScript's `Promise.all`, `Promise.any`, and `Promise.allSettled` across resolution semantics, failure handling, result ordering, and empty inputs, then apply them to real-world distributed service orchestration.
Software Engineering FundamentalsOnline Assessmentjavascriptpromisesconcurrency - Micro1MediumSoftware EngineerMerge Overlapping Intervals
Tests sorting and linear scanning techniques to consolidate overlapping and adjacent closed intervals into a minimal sorted set.
Coding & AlgorithmsOnline Assessmentarrayssortingintervals - MicrosoftMediumSoftware EngineerAdapt When Project Requirements Change Midway
Explain a mid-project requirement change through concrete first steps, personal ownership, alternatives, scope trade-offs, and revised acceptance criteria.
Behavioral & LeadershipOnsite - MicrosoftMediumSoftware EngineerAnswer Running Median Queries Over a Stream of Inserted Integers
A coding problem that processes a stream of add and median operations and returns, for every query, the median of all integers inserted so far. It tests choosing data structures that keep the middle of a growing collection quickly accessible, plus correct averaging when the count is even.
Coding & AlgorithmsOnsite - MicrosoftMediumSoftware EngineerAnswer common graph, grid, and array tasks
This problem tests your ability to model a dependency system as a directed graph and identify if a valid order exists using cycle detection (Kahn's Algorithm or DFS).
Coding & AlgorithmsTechnical ScreenGraphTopological SortDFS - MicrosoftHardSoftware EngineerAnswer suffix maximum-frequency queries
This problem tests your ability to optimize range frequency queries using precomputation and efficient data structures, specifically focusing on suffix-based constraints.
Coding & AlgorithmsOnsiteBinary SearchData StructuresArrays - MicrosoftMediumSoftware EngineerAssemble DNA payload strings from tagged fragments
This question evaluates proficiency in string manipulation, sequence assembly, and labeled-graph path reconstruction—skills involved in ordering fragments by matching start/end tags and concatenating payloads—and it belongs to the Coding & Algorithms domain.
Coding & AlgorithmsTechnical Screen - MicrosoftHardSoftware EngineerAssemble async stream reads into objects
This problem tests your ability to handle partial reads from an asynchronous stream and correctly parse length-prefixed binary data structures.
Coding & AlgorithmsOnsiteAsyncStreamsBinary-Parsing - MicrosoftMediumSoftware EngineerBehavioral: Delivering Under a Tight Deadline and Handling a Difficult Situation
A senior behavioral question in two parts: describe delivering an important project against a tight deadline, then a difficult work situation and how you handled it. It tests prioritization, scope negotiation, stakeholder communication, ownership of decisions, and composure under pressure.
Behavioral & LeadershipOnsite - MicrosoftMediumSoftware EngineerBehavioral: Long Blockers, Missed Deadlines or User Complaints, and Career Direction
Behavioral and career questions from a software engineering onsite: a time you were blocked for a long time, a project that missed its deadline or drew many user complaints, and your current focus, reasons for moving and future technical direction. It tests ownership, communication and a coherent career story.
Behavioral & LeadershipOnsite
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Microsoft