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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 241–270 of 520 results
- IBMMediumSoftware EngineerMaximize Revenue from Depleting VM Stock
Tests greedy optimization, sorting, and arithmetic progression math to compute maximum revenue from diminishing-value stock with large order quantities.
Coding & AlgorithmsOnline Assessmentgreedybinary-searchmath - IBMMediumSoftware EngineerSix Timed Behavioral Prompts: AI Tools, Debugging, Teamwork, Explaining, Goals, Quality
Six prompts from a recorded behavioral interview, each with one minute to prepare and three minutes to answer: vetting an AI tool's output, diagnosing a failure, teamwork, explaining your work, reaching a goal, and verifying that something you built works. Tests structured, specific storytelling under strict time limits.
Behavioral & LeadershipOnline Assessment - IBMEasySoftware EngineerSum Pairwise Remainders Across Two Integer Ranges
Calculate the total sum of remainders obtained by taking each integer in a dividend range modulo each non-zero divisor in a divisor range. The problem tests division properties, edge-case handling for zero divisors, and avoiding integer overflow.
Coding & AlgorithmsOnline AssessmentMathAlgorithmsArithmetic - IBMEasySoftware EngineerSum the XOR of Every Cross-Array Pair
Tests bitwise frequency analysis and arithmetic optimization by reducing an O(N * M) cross-product XOR sum to an O(B * (N + M)) bit-by-bit contribution calculation.
Coding & AlgorithmsOnline Assessmentbit-manipulationmatharrays - ImcHardSoftware EngineerChoose container set to minimize waste
An IMC software engineer take-home asking you to pick the single container set that fulfills all medicine orders with minimum total waste. It tests ceiling-style binary search, per-set validity checks, smallest-index tie-breaking, and efficient handling of inputs up to 10^5 to avoid an O(n*T) timeout.
Coding & AlgorithmsOnline Assessment - ImcMediumSoftware EngineerFind k-th recipient in command propagation order
This question evaluates understanding of tree traversals, subtree indexing, and order-statistics on rooted trees, focusing on DFS-preorder propagation when children are visited in ascending id.
Coding & AlgorithmsOnline Assessment - InstacartMediumSoftware EngineerAdd Backend Search and Filters to the Items API of a Library Lending System
Implement and test backend search, multi-attribute filtering, sorting, and pagination logic for a library lending system's items catalog.
Software Engineering FundamentalsOnline AssessmentAPI DesignData FilteringPagination - InstacartMediumSoftware EngineerAdd Hold-Available and Loan Due-Date Notifications to a Library Lending System
Tests domain modeling, queue management, and idempotent notification triggering for an event- and time-driven library lending workflow.
Software Engineering FundamentalsOnline AssessmentObject-Oriented DesignState ManagementData Structures - InstacartEasySoftware EngineerDebug Search and Stock Behavior in a Library Application
Debug a library application’s incomplete search and stock displays by reproducing symptoms, tracing API behavior, checking query semantics, and validating focused fixes.
Software Engineering FundamentalsOnline Assessment - InstacartMediumSoftware EngineerDesign Idempotent In-App Availability and Due-Date Notifications
Design asynchronous in-app availability alerts and due-date reminders with Celery, Redis, durable idempotency, versioned schedules, and crash recovery.
System DesignOnline Assessment - InstacartHardSoftware EngineerDesign cloud storage with quotas and compression
This question evaluates a candidate's ability to design a multi-tenant cloud storage system, testing competencies in API design, quota accounting, compression strategies, distributed storage architecture (partitioning, replication/erasure coding), consistency models, security, versioning, and observability.
System DesignOnline Assessment - InstacartMediumSoftware EngineerImplement an In-Memory File Storage System
This question evaluates the ability to design and implement efficient in-memory data structures and algorithms for stateful file management, covering string-keyed storage, size accounting, querying and sorting, and user quota enforcement.
Coding & AlgorithmsOnline Assessment - InstacartMediumSoftware EngineerImplement prefix and suffix file search
This question evaluates the ability to design and implement efficient string-indexing data structures and APIs for prefix-and-suffix matching, demonstrating competency with tries, suffix-related structures, inverted indexes, and time/space complexity trade-offs.
Coding & AlgorithmsOnline Assessment - InstacartMediumSoftware EngineerImplement timestamped task management system APIs
This question evaluates a candidate's ability to design and implement time-ordered in-memory data structures and APIs, testing competencies in temporal event ordering and precedence, scheduled deletions, priority-sorted retrieval, user-task assignment, and historical (time-travel) queries.
Coding & AlgorithmsOnline Assessment - InstacartHardSoftware EngineerImplement worker time and payroll tracker
This problem tests your ability to manage overlapping time intervals, perform efficient lookups on historical state changes, and calculate cumulative payroll based on dynamic shift rates.
Coding & AlgorithmsOnline AssessmentIntervalsBinary SearchData Structures - InstacartHardSoftware EngineerLibrary Catalog and Lending System: Five-Phase Engineering Assessment
This problem tests the ability to design an extensible lending system, implement a search algorithm with concurrency constraints, and debug race conditions in a multi-threaded environment.
Software Engineering FundamentalsOnline Assessmentconcurrencydata-structuressystem-design - Interactive BrokersMediumSoftware EngineerCalculate Tax Under Progressive Income Brackets
This problem tests the ability to iterate through sorted intervals and calculate values based on overlapping ranges, requiring careful boundary handling.
Coding & AlgorithmsOnline AssessmentArraysSimulationGreedy - Interactive BrokersEasySoftware EngineerCalculate Tax in a Progressive Marginal Tax System
Practice a Interactive Brokers coding interview problem focused on calculate tax in a progressive marginal tax system. The prompt emphasizes edge cases, clean implementation, and verifiable test behavior without revealing the solution.
Coding & AlgorithmsOnline Assessment - IntuitMediumSoftware EngineerAggregate transactions by status and failure reasons (SQL)
This question evaluates a candidate's proficiency with SQL aggregation, grouping, window functions, string aggregation, and normalization techniques for summarizing transactional records by status and failure reasons.
Software Engineering FundamentalsOnline Assessment - IntuitMediumSoftware EngineerFind largest file in a directory using Bash
This problem tests your ability to navigate the file system using command-line utilities and process streaming data to identify files based on size metadata.
Software Engineering FundamentalsOnline AssessmentBashLinuxScripting - IntuitMediumSoftware EngineerFind largest filename from ls -l output
This question evaluates proficiency in text parsing, tokenization, and numeric comparison applied to command-line style output, emphasizing robust handling of varied input formats and edge cases.
Coding & AlgorithmsOnline Assessment - IntuitMediumSoftware EngineerProduce valid student lineup from parent array
This problem tests your ability to reconstruct a valid topological ordering (parent-before-child) from a parent-child relationship array while maintaining lexicographical minimality.
Coding & AlgorithmsOnline AssessmentGraphsTreesPriority Queue - IntuitMediumSoftware EngineerSum palindrome-change costs over all substrings
This question evaluates understanding of string algorithms, combinatorial counting, and algorithmic optimization for aggregating pairwise mismatch costs across all substrings.
Coding & AlgorithmsOnline Assessment - J.P. MorganMediumSoftware EngineerGroup anagrams and count string in grid
This question evaluates algorithmic problem-solving skills in string processing, hashing/grouping and grid traversal/backtracking, along with the ability to analyze time and space complexity and trade-offs.
Coding & AlgorithmsOnline Assessment - J.P. MorganEasySoftware EngineerImprove shopping cart latency and stock notifications
This question evaluates a candidate's ability to design scalable, low-latency e-commerce architectures and real-time notification mechanisms while reasoning about data consistency, concurrency control, and correctness under high traffic (including concerns like avoiding oversells).
System DesignOnline Assessment - J.P. MorganMediumSoftware EngineerMinimize Operations to Balance Shipments
This question evaluates algorithmic optimization and array partitioning skills, focusing on modeling minimal integer adjustments to equalize partition sums and demonstrating numerical reasoning under constraints.
Coding & AlgorithmsOnline Assessment - J.P. MorganMediumSoftware EngineerSplit Modules Across Three Servers to Maximize the Minimum Deployment Difficulty
Assign modules with given difficulty values to three non-empty servers so that the smallest value of |d1 - d2| + |d2 - d3|, over one module picked from each server, is as large as possible. Tests max-min reasoning over partitions, the role of the middle server, and handling of duplicates and large values.
Coding & AlgorithmsOnline Assessment - Jane StreetMediumSoftware EngineerImplement Connect Four with bottom push-up
This question evaluates proficiency in data structures, algorithm design, state management, and API design for game mechanics, focusing on board representation, move operations, win detection, and undo/redo functionality.
Coding & AlgorithmsOnline Assessment - Jump TradingEasySoftware EngineerExpand a Serial and Parallel Task Composition Specification
Tests parsing structured workflow specifications with nested delimiters and quoted literals, then generating all concrete serial execution paths via Cartesian expansion.
Coding & AlgorithmsOnline AssessmentString ParsingRecursionBacktracking - Jump TradingEasySoftware EngineerIdentify Files That Need Synchronization
Determine which files from a source system need to be synchronized to a destination system based on permissions, presence, size, and modification timestamps.
Coding & AlgorithmsOnline Assessmenthash-tablestringimplementation
IBM
Imc
Instacart
Intuit
J.P. Morgan
Jane Street