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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
- Companies
- 11
- Topics
- 8
- Languages
Showing 271–300 of 520 results
- Jump TradingMediumSoftware EngineerIdentify read-only files from permission records
This problem tests your ability to parse Unix-style permission strings and implement filtering logic based on bitmask-like constraints.
Coding & AlgorithmsOnline AssessmentString ParsingFilteringAlgorithms - KneronMediumSoftware EngineerCompute sum of minima with removals
Compute sum of minima with removals 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 & AlgorithmsOnline Assessment - KneronMediumSoftware EngineerCount IoT devices matching date and threshold
This question evaluates handling of paginated REST APIs, JSON parsing and nested-data filtering, month/year date parsing, and numeric threshold comparisons, reflecting skills in data retrieval and programmatic data manipulation.
Data Manipulation (SQL/Python)Online Assessment - KneronMediumSoftware EngineerOptimize machines for distributed merging cost
Optimize machines for distributed merging cost evaluates requirements, scale assumptions, API/data design, architecture, trade-offs, failure modes, and rollout in a realistic interview setting. A strong answer states assumptions, handles edge cases, explains trade-offs, and shows how to validate the result clearly.
System DesignOnline Assessment - LyftMediumSoftware EngineerAssign Minimum Workers to Jobs
This problem tests your ability to manage overlapping intervals and greedy resource allocation using minute-based time arithmetic.
Coding & AlgorithmsOnline AssessmentSweep-lineIntervalsGreedy - MathWorksMediumSoftware EngineerCalculate cost from orders with SQL
This question evaluates a candidate's ability to perform SQL data manipulation and business-rule calculations, including conditional joins, date-range filtering, and numeric arithmetic for discounts and taxes.
Data Manipulation (SQL/Python)Online Assessment - MathWorksMediumSoftware EngineerCalculate tiered cost and break-even
This question evaluates the ability to model tiered piecewise cost functions, compute total and average unit costs, and perform break-even analysis using basic algebra and arithmetic.
Statistics & MathOnline Assessment - MathWorksMediumSoftware EngineerCompute intersections for each segment
This question evaluates algorithmic problem-solving, interval reasoning, and complexity-analysis skills by requiring an efficient method to count how many other segments intersect each interval while accounting for edge cases like equal endpoints and duplicate segments.
Coding & AlgorithmsOnline Assessment - MathWorksEasySoftware EngineerCompute probability of drawing reds
This question evaluates understanding of probability theory and combinatorics, specifically reasoning about sampling without replacement and calculating event probabilities using counting methods.
Statistics & MathOnline Assessment - MathWorksEasySoftware EngineerCompute urn-draw probabilities and expectations
This question evaluates understanding of elementary probability concepts—dependent events, conditional probability, and expected value—using an urn model with draws without replacement.
Statistics & MathOnline Assessment - MathWorksMediumSoftware EngineerDecide transform via one-to-one mapping
This question evaluates understanding of character-to-character mappings in strings, modeling those mappings as directed graphs, detection and handling of cycles, and the ability to construct a sequence of replacements.
Coding & AlgorithmsOnline Assessment - MathWorksHardSoftware EngineerDeduce position from logic clues
This question evaluates the ability to model and reason about constraint-satisfaction on a 2D grid, including logical inference with directional and adjacency relations, combinatorial placement constraints, and determination of uniqueness.
Statistics & MathOnline Assessment - MathWorksEasySoftware EngineerDeduce row order from logic clues
This question evaluates logical deduction, constraint satisfaction, and basic combinatorial reasoning used to infer ordering from positional clues. Commonly asked to assess a candidate's ability to apply discrete math and spatial reasoning within the Statistics & Math domain, it targets conceptual understanding of constraints rather than practical implementation.
Statistics & MathOnline Assessment - MathWorksMediumSoftware EngineerDesign a multi-tenant course purchase and delivery system
This question tests the ability to design a scalable multi-tenant architecture that manages course content, user entitlements, and purchase workflows across different organizational silos.
System DesignOnline AssessmentMulti-tenancyAPI DesignScalability - MathWorksMediumSoftware EngineerDetermine string transform via end-append moves
This question evaluates a candidate's understanding of string manipulation, permutation feasibility, and algorithmic optimization for computing minimal move counts.
Coding & AlgorithmsOnline Assessment - MathWorksMediumSoftware EngineerFind shortest path using BFS
This question evaluates a candidate's proficiency with graph traversal algorithms—particularly breadth-first search—and the ability to model grid-based shortest-path problems while reasoning about time and space complexity.
Coding & AlgorithmsOnline Assessment - MathWorksMediumSoftware EngineerImplement BFS shortest paths with reconstruction
This question evaluates understanding of graph traversal via breadth-first search, computation of shortest paths in unweighted graphs, and path reconstruction using parent arrays, assessing algorithmic reasoning and implementation skills in the Coding & Algorithms domain.
Coding & AlgorithmsOnline Assessment - MathWorksMediumSoftware EngineerMaximize disjoint k-sum pairs
This question evaluates proficiency in array algorithms, pairing logic, data structure selection, and complexity analysis, focusing on maximizing disjoint k-sum pairs and reasoning about space–time trade-offs.
Coding & AlgorithmsOnline Assessment - MathWorksMediumSoftware EngineerMaximize operations by removing target-sum pairs
This question evaluates a candidate's ability to design and analyze efficient array algorithms and use appropriate data structures and techniques such as hash maps or sorting with two-pointer strategies, with attention to time and space complexity.
Coding & AlgorithmsOnline Assessment - 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 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 a bank system with scheduled transfers
This question evaluates object-oriented design and stateful system skills, including time-ordered event processing, scheduling and cancellation semantics, balance accounting, and top-k aggregation using appropriate data structures.
Coding & AlgorithmsOnline Assessment - MetaHardSoftware EngineerDesign a basic bank system API
This question evaluates a candidate's ability to design and implement an in-memory banking API, focusing on data modeling, API semantics, invariants (such as monotonic timestamps and non-negative balances), idempotency, and basic concurrency control.
System DesignOnline Assessment - MetaMediumSoftware EngineerDesign a fitness tracking app
This problem tests your ability to design a scalable backend for a fitness tracking application, focusing on high-frequency sensor data ingestion, geospatial route storage, and efficient retrieval of historical user activities.
System DesignOnline AssessmentScalabilityGeospatialNoSQL - MetaMediumSoftware EngineerDesign an in-memory cloud file system
This question evaluates understanding of object-oriented design, stateful data structures, and resource management including user quotas, ownership semantics, and file metadata operations.
Coding & AlgorithmsOnline Assessment - MetaHardSoftware EngineerDesign an in-memory cloud storage system
This question tests your ability to design a high-performance, in-memory distributed metadata store that supports hierarchical file structures, quota management, and efficient retrieval of top-k largest files.
System DesignOnline AssessmentData StructuresConcurrencyTrie - MetaMediumSoftware EngineerDesign an in-memory database with TTL and history
This question evaluates understanding of time-versioned in-memory key–field–value stores, covering TTL-based expiration, historical reads, atomic compare-and-set/delete semantics, efficient scan/scan-by-prefix operations, and time/space complexity analysis, and it belongs to the Coding & Algorithms domain.
Coding & AlgorithmsOnline Assessment - MetaMediumSoftware EngineerExtend cloud file system with copy and compression
This question evaluates understanding of data structures and algorithms for stateful resource management, covering bookkeeping of per-user quotas, file metadata operations (copy, compress/decompress), string filtering and sorting, and efficient selection and deletion of largest elements.
Coding & AlgorithmsOnline Assessment - MetaEasySoftware EngineerImplement Multi-Level In-Memory Services
This question evaluates a candidate's ability to design and implement mutable in-memory data structures and algorithms for stateful service simulations, covering account and file modeling, temporal operations with lazy expiration, ranking queries, merging entities, and capacity constraints.
Coding & AlgorithmsOnline Assessment - MetaHardSoftware EngineerImplement a Timestamped Banking System
This problem tests the ability to manage time-series data using efficient lookups and range queries, specifically requiring a balance between transactional updates and historical state retrieval.
Coding & AlgorithmsOnline AssessmentData StructuresBinary SearchTime-series
Lyft
MathWorks
Meta