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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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- 11
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Showing 2191–2220 of 5874 results
- Goldman SachsMediumSoftware EngineerCollect the Most Rocks with Upward and Rightward Moves
Tests dynamic programming on a grid to find an optimal path from the bottom-left to top-right corner using constrained directional moves.
Coding & AlgorithmsOnsitedynamic-programminggridmatrix - Goldman SachsMediumSoftware EngineerCount segments and optimize 3-server assignment
This two-part problem evaluates array-processing and counting competency for identifying fixed-length strictly increasing subarrays and combinatorial partitioning and optimization competency for assigning elements to three groups to maximize a minimal pairwise-difference metric, and is commonly asked to assess efficient algorithm design, correctness under constraints, and the ability to handle large inputs. Belonging to the Coding & Algorithms domain, it tests practical algorithmic application, data-structure-aware implementation and complexity analysis rather than purely theoretical understanding.
Coding & AlgorithmsOnline Assessment - Goldman SachsMediumSoftware EngineerDescribe a proud project and handling credit conflict
This question evaluates interpersonal and ethical competencies such as ownership, leadership, communication, conflict resolution, and professional integrity in the context of software project work.
Behavioral & LeadershipTechnical Screen - Goldman SachsEasySoftware EngineerDesign a Pastebin Service: Requirements, Entities, APIs and End-to-End Architecture
Design a scalable text sharing (Pastebin) service that generates unique short URLs for submitted text snippets. This question assesses API design, data modeling, storage decoupling, key generation strategies, and caching mechanisms under high read concurrency.
System DesignOnsiteObject StorageCachingKey Generation - Goldman SachsMediumSoftware EngineerDesign a Streaming Metrics Dashboard: Time-Range Queries and Event-Time Watermarks
Design the backend of a dashboard that shows metrics computed from a continuous event stream and lets users query any time range. The discussion focuses on answering range queries from pre-aggregated data and on how watermarks decide when event-time windows are complete despite late or out-of-order events.
System DesignOnsite - Goldman SachsMediumSoftware EngineerDesign a Ten-Minute In-Memory Notification Deduplication Engine
Design a high-throughput, low-latency in-memory deduplication service that identifies and suppresses duplicate notifications within a 10-minute sliding window.
System DesignOnsiteIn-Memory CachingConcurrencyHigh Throughput - Goldman SachsMediumSoftware EngineerDesign a Workspace Resource Manager
This problem tests your ability to design a tree-based hierarchical resource management system and implement efficient operations for path-based access, relocation, and cycle detection.
Coding & AlgorithmsTechnical ScreenTreesGraphsData Structures - Goldman SachsMediumSoftware EngineerFind the Root of the Largest Tree in a Child-to-Parent Forest
Given a list of child-to-parent pairs that form a forest of rooted trees, return the root ID of the tree with the most nodes, breaking size ties by the smallest root ID. Tests building a forest from an edge list, identifying roots, counting tree sizes, and applying a precise tie-break rule.
Coding & AlgorithmsTechnical Screen - Goldman SachsMediumSoftware EngineerHighest Average Student Score: Out-of-Memory Input, Overflow and Thread Safety in Java
Compute the highest average score among students from name and score records, then extend the code for data larger than memory, negative scores, integer overflow and multithreaded processing. The question also covers what atomic operations are in Java and how synchronized differs from ReentrantLock.
Software Engineering FundamentalsOnsite - Goldman SachsMediumSoftware EngineerHow would you handle conflict and data pressure?
This question evaluates conflict resolution, leadership communication, ethical judgment, and secure-data governance for a software engineer managing collaborator disagreement and requests involving sensitive information.
Behavioral & LeadershipTechnical Screen - Goldman SachsEasySoftware EngineerImplement a String Deque
This question evaluates competence with fundamental data structures and algorithms by requiring an implementation of a string double-ended queue (deque), checking understanding of constant-time (O(1)) operations, manipulation of node links or references, and correct handling of edge cases; category: Coding & Algorithms; level: practical implementation rather than purely conceptual. It is commonly asked to assess the ability to implement low-level data structure mechanics, guarantee performance bounds, and expose attention to correctness and boundary conditions in algorithmic coding tasks.
Coding & AlgorithmsTechnical Screen - Goldman SachsMediumSoftware EngineerMaximize Element Frequency with Limited Increments
Tests sorting and sliding window techniques to maximize an element's frequency within an increment budget.
Coding & AlgorithmsOnsitearraysliding-windowsorting - Goldman SachsMediumSoftware EngineerOverlapping Meetings and Minimum Rooms: No Sweep Line, No Library Sort, Streams, Logs
Starting from a list of meeting time intervals, decide whether one person can attend them all, then find the minimum number of rooms without a sweep line, order the meetings without a library sort, handle a stream of meetings, and explain how a Kafka-style append-only log broker works. It tests heaps, sorting, streaming and log storage.
Software Engineering FundamentalsOnsite - Goldman SachsMediumSoftware EngineerRolling Ball Maze Reachability
This problem tests your ability to model a grid-based movement simulation as a graph reachability problem, requiring efficient state traversal.
Coding & AlgorithmsOnsiteBFSGraphsSimulation - Goldman SachsEasySoftware EngineerSearch for a Target in a Matrix Sorted by Rows and Columns
Tests the ability to search efficiently in a 2D grid sorted along both dimensions by exploiting boundary invariants to achieve an O(m + n) time complexity.
Coding & AlgorithmsOnsitearraysmatrixbinary-search - Goldman SachsMediumSoftware EngineerSkip-Level Behavioral: Commitment, Working With PMs and EMs, and Following Up on SLAs
A skip-level manager behavioral round that probes a commitment-to-delivery mindset, asks for a walkthrough of a significant past project, and focuses on how the candidate works with product and engineering managers and tracks and follows through on SLAs. It tests ownership, stakeholder management and reliability.
Behavioral & LeadershipOnsite - Goldman SachsMediumSoftware EngineerSolve string and hashmap coding tasks
This problem tests your ability to manipulate strings, utilize hash maps for grouping data, and perform iterative simulations based on sequential command logs.
Coding & AlgorithmsTechnical ScreenStringsHashMapsData-Processing - Goldman SachsMediumSoftware EngineerSolve string and hashmap interview tasks
This question evaluates proficiency in string manipulation and hash-based aggregation, specifically skills such as frequency counting, map/dictionary usage, and numeric aggregation for averages.
Coding & AlgorithmsTechnical Screen - GongMediumSoftware EngineerDelivering Bad News to a Team or Stakeholders Without Losing Trust
A behavioral interview question about a time you had to deliver bad news such as a missed deadline, a serious defect or an unpopular decision. It tests timing, choosing the right audience, delivering facts with options and a recommendation, owning the problem without blame, and following through afterward.
Behavioral & LeadershipOther - GongMediumSoftware EngineerDesign a Service That Captures Zoom Meeting Recordings and Processes Them at Scale
A system design exercise for ingesting recorded Zoom meetings into a business product and processing them into transcripts and conversation analysis. It tests reliable ingestion despite missed notifications, rate-limited fetching, staged idempotent processing on costly compute, fairness between customers, reprocessing, and data deletion.
System DesignOther - GongMediumSoftware EngineerDesign a Service That Finds Common Free Time Across Connected Calendars
A system design exercise for a service that finds times when a group of people is free, using calendars synced from external providers. It tests computing common free time correctly across time zones, keeping availability fresh within rate limits, preventing double bookings, and scaling queries and public booking pages.
System DesignOther - GongMediumSoftware EngineerDriving a Project Forward When Goals and Requirements Are Ambiguous
A behavioral interview question about making progress on a project or role whose goals, requirements or ownership were unclear. It tests how a senior engineer identifies unknowns, reduces uncertainty with cheap investigations and decisions, paces reversible versus hard-to-undo choices, and keeps stakeholders aligned.
Behavioral & LeadershipOther - GongMediumSoftware EngineerResolving a Conflict With a Coworker: A Senior Behavioral Walkthrough
A behavioral interview question asking for a real conflict with a coworker and how it was resolved. It tests whether a senior engineer addresses disagreements directly, understands the other side, moves the debate onto shared criteria or evidence, preserves the working relationship, and reflects honestly on their own part.
Behavioral & LeadershipOther - GoogleMediumSoftware EngineerA Leader or Manager Who Shaped You and How You Applied the Lesson Later
A behavioral interview question asking you to describe a past leader or manager who had a strong positive influence on you and how you later applied what you learned. It tests reflection, the ability to turn an observed behavior into a reusable lesson, and evidence that the lesson changed your own work.
Behavioral & LeadershipOnsite - GoogleMediumSoftware EngineerAdd two big integers from digit lists
This question evaluates algorithmic skills in manipulating linked lists or arrays to perform addition of large integers, focusing on carry propagation, handling differing lengths, and analysis of time and space complexity.
Coding & AlgorithmsTechnical Screen - GoogleMediumSoftware EngineerAnswer Staff-level leadership scenarios using STAR
This question evaluates staff-level leadership competencies including technical decision-making, stakeholder alignment, conflict resolution, incident management, ownership, risk mitigation, and cross-team influence within the behavioral and leadership domain.
Behavioral & LeadershipOnsite - GoogleHardSoftware EngineerAnswer collaboration, ambiguity, growth, and failure questions
This question evaluates behavioral and leadership competencies such as collaboration, conflict resolution, adaptability to ambiguity, learning agility, accountability for failures, and the ability to quantify impact within a software engineering context.
Behavioral & LeadershipTechnical Screen - GoogleHardSoftware EngineerAnswer common behavioral questions for new grad
This set of prompts evaluates communication, behavioral leadership, product thinking, prioritization, goal-setting, time-management, and self-awareness through common interview topics such as self-introduction, company/team fit, product strategy, short- and long-term goals, workload handling, and personal weaknesses.
Behavioral & LeadershipTechnical Screen - GoogleMediumSoftware EngineerAnswer common behavioral questions with follow-ups
This question evaluates behavioral and leadership competencies—ownership, communication, conflict resolution, root-cause analysis, and evidence-based impact measurement—within a software engineering context and is categorized under Behavioral & Leadership interviews.
Behavioral & LeadershipTechnical Screen - GoogleHardSoftware EngineerAnswer core teamwork and conflict stories
This question evaluates interpersonal competencies such as teamwork, conflict resolution, advocacy, active listening, and the ability to learn from peers and apply that learning in a professional setting.
Behavioral & LeadershipOnsite
Goldman Sachs
Gong
Google