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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.
- 9403
- Questions
- 546
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- 11
- Topics
- 8
- Languages
Showing 3121–3150 of 5874 results
- MetaMediumSoftware EngineerCompute longest rising path in a grid
This question evaluates mastery of graph traversal, dynamic programming, and complexity analysis for computing longest increasing paths in a matrix, focusing on algorithmic correctness and efficient use of time and space.
Coding & AlgorithmsTechnical Screen - MetaMediumSoftware EngineerCompute max profit from single stock trade
This question evaluates a candidate's ability to design efficient array algorithms, reason about time and space complexity constraints, and handle edge cases related to single-transaction profit calculation.
Coding & AlgorithmsTechnical Screen - MetaMediumSoftware EngineerCompute nested depth-weighted sum
This question evaluates understanding of tree-like nested data structures, traversal strategies (recursive DFS and iterative approaches), handling of edge cases such as empty lists and negative integers, and algorithmic reasoning about time and space complexity within the Coding & Algorithms domain.
Coding & AlgorithmsTechnical Screen - MetaMediumSoftware EngineerCompute sparse dot product and count islands
This question evaluates competency in designing efficient algorithms for sparse data representations and for identifying connected components in grids, testing skills in handling large inputs, memory-efficient representations, and traversal/graph concepts.
Coding & AlgorithmsTechnical Screen - MetaHardSoftware EngineerCompute the Dot Product of Sparse Vectors
Compute the dot product of two sparse vectors stored as sorted index-value pairs without expanding them. A two-pointer traversal should visit only nonzero entries, multiply matching indices, and accumulate safely in a wide integer type.
Coding & AlgorithmsOnsite - MetaMediumSoftware EngineerCompute unmatched parentheses length
This problem tests your ability to use stack-based logic to track balanced sequences and identify the length of characters that remain unmatched after processing all valid pairs.
Coding & AlgorithmsOnsiteStringStackGreedy - MetaMediumSoftware EngineerCompute vertical order of a BST
This question evaluates understanding of binary tree traversals and coordinate-based ordering, including tie-breaking by breadth-first visitation order, plus competency in algorithmic time and space complexity analysis and strategies for handling deep recursion and streaming large inputs.
Coding & AlgorithmsTechnical Screen - MetaMediumSoftware EngineerCompute weighted sum of nested lists
This interview question evaluates algorithm design, data structures, correctness, complexity, edge cases, and implementation details in a realistic interview setting. A strong answer for Compute weighted sum of nested lists states assumptions, handles edge cases, explains trade-offs, and shows how to validate the result clearly.
Coding & AlgorithmsTechnical Screen - MetaMediumSoftware EngineerConvert BST to sorted doubly list
This question evaluates understanding of binary search tree properties, in-order traversal, in-place pointer manipulation, and algorithmic complexity when converting tree nodes into a sorted doubly linked list.
Coding & AlgorithmsTechnical Screen - MetaMediumSoftware EngineerCount Distinct Values in a Sorted Array When K Is Small
Count distinct values in a sorted array efficiently when the number of unique values is much smaller than the array length. The challenge tests adapting complexity to output diversity rather than raw length, meeting an O(k log n) target with constant auxiliary space, and handling empty or uniform arrays.
Coding & AlgorithmsOnsite - MetaMediumSoftware EngineerCount Subarrays with a Target Sum
Tests the ability to use prefix sums and hash tables to count contiguous subarrays summing to a target in linear time, handling negative values and zeros.
Coding & AlgorithmsOnsitearraysprefix-sumhash-table - MetaMediumSoftware EngineerCount palindrome substrings in a string
This question evaluates proficiency in string algorithms, algorithmic design, and complexity analysis by targeting palindromic substring counting, string manipulation, and conceptual linear-time techniques.
Coding & AlgorithmsTechnical Screen - MetaMediumSoftware EngineerCount subarrays equal to target
This problem tests your ability to use a hash map to track prefix sums, allowing for an efficient solution to a subarray counting problem.
Coding & AlgorithmsTechnical ScreenArrayHash MapPrefix Sum - MetaMediumSoftware EngineerCount subarrays summing to target
This question evaluates understanding of prefix-sum concepts, use of linear-time data structures, and competence in handling negative numbers and edge cases such as zero targets and empty prefixes.
Coding & AlgorithmsTechnical Screen - MetaHardSoftware EngineerCount three-digit numbers with distinct digits
This problem tests your ability to count numbers satisfying digit-based constraints within a specific range using combinatorial logic or efficient iteration.
Coding & AlgorithmsOnsiteMathCombinatoricsImplementation - MetaMediumSoftware EngineerDebug and optimize React performance issues
This interview question evaluates requirements, scale assumptions, API/data design, architecture, trade-offs, failure modes, and rollout in a realistic interview setting. A strong answer for Debug and optimize React performance issues states assumptions, handles edge cases, explains trade-offs, and shows how to validate the result clearly.
System DesignTechnical Screen - MetaMediumSoftware EngineerDecide palindrome within k deletions
This interview question evaluates algorithm design, data structures, correctness, complexity, edge cases, and implementation details in a realistic interview setting. A strong answer for Decide palindrome within k deletions states assumptions, handles edge cases, explains trade-offs, and shows how to validate the result clearly.
Coding & AlgorithmsTechnical Screen - MetaMediumSoftware EngineerDemonstrate communication and teamwork
This set of behavioral prompts evaluates communication, teamwork, leadership, stakeholder explanation, conflict resolution, and self-reflection skills relevant to a software engineer role.
Behavioral & LeadershipOnsite - MetaMediumSoftware EngineerDerive max distinct frequencies for n items
The question evaluates combinatorial reasoning, discrete mathematics, and constructive extremal analysis by asking for the maximum number of distinct frequency counts in an array and a matching construction.
Statistics & MathTechnical Screen - MetaEasySoftware EngineerDescribe background and job motivations
This question evaluates communication, self-awareness, motivation, and cultural-fit competencies within the Behavioral & Leadership domain for a Software Engineer role.
Behavioral & LeadershipHR Screen - MetaMediumSoftware EngineerDescribe conflict resolution and initiative
This question evaluates conflict resolution, initiative, ownership, influence, and learning from failure within a Behavioral & Leadership context for a software engineer.
Behavioral & LeadershipOnsite - MetaMediumSoftware EngineerDescribe conflict resolution and leadership
This question evaluates conflict resolution, leadership, cross-team collaboration, stakeholder management, and senior-level ownership and communication competencies in the Behavioral & Leadership category within the software engineering domain.
Behavioral & LeadershipTechnical Screen - MetaHardSoftware EngineerDescribe conflict resolution and mentoring experiences
Prepare engineering manager or senior engineer behavioral answers for conflict resolution, proud projects, self-reflection, and mentoring. Includes STAR structures, sample story patterns, and pitfalls.
Behavioral & LeadershipOnsite - MetaMediumSoftware EngineerDescribe cross-team collaboration and learning from failure
This question evaluates a software engineer's proficiency in cross-team collaboration, conflict and constraint management, ownership alignment, and reflective learning from project failure, emphasizing interpersonal, leadership, and accountability competencies.
Behavioral & LeadershipOnsite - MetaMediumSoftware EngineerDescribe proudest project and cross-team work
This question evaluates leadership, cross-team collaboration, ownership, and reflective learning by asking about a candidate's proudest project and a specific instance of working across teams, and it falls under the Behavioral & Leadership category within the software engineering domain.
Behavioral & LeadershipOnline Assessment - MetaMediumSoftware EngineerDescribe resolving conflict by persuading others
This question evaluates persuasion, conflict-resolution, communication, and stakeholder-management competencies and falls within the Behavioral & Leadership domain.
Behavioral & LeadershipOnsite - MetaMediumSoftware EngineerDescribe teamwork and stress handling
This interview question evaluates behavioral evidence, ownership, communication, trade-offs, and measurable outcomes in a realistic interview setting. A strong answer for Describe teamwork and stress handling states assumptions, handles edge cases, explains trade-offs, and shows how to validate the result clearly.
Behavioral & LeadershipOnline Assessment - MetaMediumSoftware EngineerDesign 24-Hour Ephemeral Stories for a Photo and Video Sharing App
A system design question on ephemeral stories that followers can view for 24 hours before they disappear, covering media upload, the tray of accounts with unwatched stories, playback, and viewer tracking. It tests expiry semantics, fan-out for popular authors, watched-state storage, and media delivery.
System DesignOnsite - MetaHardSoftware EngineerDesign Boolean Search for Status Posts
This problem tests the ability to design an inverted index system that supports complex logical queries, high-concurrency updates, and consistent pagination over a distributed dataset.
System DesignOnsiteInverted IndexSearchDistributed Systems - MetaMediumSoftware EngineerDesign Boolean Search over User Status Posts
This problem tests the design of a scalable inverted index system capable of handling boolean queries (AND/OR/NOT) over a high-throughput stream of user status updates.
System DesignOnsiteInverted IndexBoolean SearchConcurrency
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