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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 3601–3630 of 4616 results
- SalesforceMediumSoftware EngineerImplement a traffic-light UI with JS
This question evaluates front-end web development competencies, including DOM manipulation, CSS-driven UI state, JavaScript timing and asynchronous state management for interactive components.
Coding & AlgorithmsTechnical Screen - SalesforceMediumSoftware EngineerMaximal Square and Longest Increasing Subsequence
This problem tests proficiency with 2D dynamic programming for geometric pattern recognition and 1D dynamic programming for sequence optimization.
Coding & AlgorithmsTechnical ScreenDynamic ProgrammingBinary SearchMatrix - SalesforceMediumSoftware EngineerMaximize events attended given date ranges
This problem tests your ability to solve a classic greedy interval scheduling variation by using sorting and a priority queue to maximize overlapping resource utilization.
Coding & AlgorithmsTechnical ScreenGreedyHeapSorting - SalesforceMediumSoftware EngineerMinimize steps to reduce integer
This question evaluates algorithm design skills and proficiency with integer operations and decision-making under parity constraints, testing competencies such as bitwise reasoning, greedy and dynamic-programming intuition, and complexity analysis.
Coding & AlgorithmsTechnical Screen - SalesforceMediumSoftware EngineerPresent and Defend Recent Research on AI Agents
This question assesses the candidate's ability to communicate complex research, isolate their specific technical contributions, and synthesize academic concepts with practical AI-agent architectural challenges.
Machine LearningTechnical ScreenAI AgentsResearch CommunicationML Engineering - SalesforceHardSoftware EngineerSolve sliding window, heap, DP, in-place tasks
This problem tests your ability to combine sliding window techniques with hash map frequency tracking to identify all starting indices of valid anagrams in a target string.
Coding & AlgorithmsTechnical ScreenSliding WindowHash MapStrings - SamsaraMediumSoftware EngineerImplement Markdown-to-HTML parser
This question evaluates parsing and string-processing skills, including tokenization, stateful scanning, inline versus block-level markup handling, edge-case management (e.g., unmatched delimiters, trailing spaces, empty paragraphs) and reasoning about time and space complexity.
Coding & AlgorithmsTechnical Screen - SamsaraMediumSoftware EngineerParse Markdown Links Without Regex
This question evaluates proficiency in string parsing, tokenization, escape-sequence handling, and input validation required to convert simplified Markdown-style link syntax into HTML anchors without using regular expressions.
Coding & AlgorithmsTechnical Screen - SamsungEasySoftware EngineerCount islands in a binary grid
This question evaluates a candidate's ability to analyze grid-based data structures and identify connected components, testing spatial adjacency reasoning and state management within 2D arrays.
Coding & AlgorithmsTechnical Screen - SamsungMediumMachine Learning EngineerValidate palindrome with constraints
This question evaluates a candidate's ability to implement string-processing algorithms and two-pointer techniques under O(n) time and O(1) extra space constraints, including character filtering, case normalization, edge-case handling, and algorithmic complexity analysis.
Coding & AlgorithmsTechnical Screen - SapMediumSoftware EngineerImplement JavaScript utility and API functions
This problem tests proficiency in JavaScript functional programming patterns, data manipulation, and asynchronous error handling when interacting with REST APIs.
Coding & AlgorithmsTechnical ScreenJavaScriptFunctional ProgrammingAsynchronous - Scale AIMediumSoftware EngineerCompute clock hand angle with seconds and milliseconds
This question evaluates understanding of angular geometry and numeric precision in time-based systems, testing competency in parsing varying time formats and computing continuous clock-hand positions; it is in the Coding & Algorithms domain and requires both conceptual understanding of angular motion and practical application in precise computation. Interviewers commonly ask this problem to assess an applicant's ability to model continuous motion, handle 12/24-hour representations and edge cases, and manage seconds- and milliseconds-level precision when deriving and implementing numerical formulas.
Coding & AlgorithmsTechnical Screen - Scale AIEasySoftware EngineerConnect Your Hardest Project to Your Interest in a Role
Tests a candidate's ability to deliver a crisp, unified narrative connecting their hardest technical project, personal ownership, and key learnings directly to their interest in Scale AI.
Behavioral & LeadershipTechnical ScreenBehavioralSelf IntroductionSystem Ownership - Scale AIMediumMachine Learning EngineerDebug ML pipeline and build text parser
This question evaluates practical machine learning engineering skills, including debugging unfamiliar codebases, parsing noisy text data, and identifying subtle defects such as train/test leakage or shape mismatches. It tests applied Python proficiency and systematic reasoning under time pressure, core competencies assessed in ML engineer technical interviews.
Data Manipulation (SQL/Python)Technical Screen - Scale AIMediumSoftware EngineerDescribe how you learn quickly in new domains
This question evaluates a candidate's rapid-learning and adaptability skills, emphasizing prioritization, structured learning processes, and the ability to balance knowledge acquisition with delivery.
Behavioral & LeadershipTechnical Screen - Scale AIMediumSoftware EngineerDescribe how you resolve conflicts at work
This question evaluates a candidate's conflict-resolution, communication, and interpersonal leadership competencies in cross-functional team and stakeholder interactions.
Behavioral & LeadershipTechnical Screen - Scale AIEasySoftware EngineerDesign a Streaming Job Scheduler
This question evaluates task scheduling, deadline-based prioritization, dependency management, and distributed coordination competencies, encompassing algorithmic/data-structure reasoning as well as correctness under concurrency and failure conditions.
System DesignTechnical Screen - Scale AIMediumSoftware EngineerDesign a large-scale ticketing system
This question evaluates skills in large-scale system design, including distributed systems, concurrency control, transactional correctness, data modeling, API design, and integration with external payment providers.
System DesignTechnical Screen - Scale AIMediumSoftware EngineerDesign and Simulate a Four-Player Card Game
Work through a three-stage object-oriented card game covering dealing, follow-suit trick state, configurable scoring, and deterministic tests.
Software Engineering FundamentalsTechnical Screen - Scale AIHardMachine Learning EngineerExplain Transformers, attention, decoding, RL, and evaluation
This question evaluates understanding of transformer architectures, self- and cross-attention mechanisms, autoregressive decoding and sampling strategies, reinforcement learning–based fine-tuning (RLHF), evaluation methodologies, and training/inference optimization techniques.
Machine LearningTechnical Screen - Scale AIMediumSoftware EngineerFind LCA in a N-ary tree via DFS
This question evaluates understanding of tree algorithms and recursive DFS traversal for computing the lowest common ancestor in an N-ary tree, including handling node references, subtree detection, and correctness in a single traversal.
Coding & AlgorithmsTechnical Screen - Scale AIHardSoftware EngineerImplement Dependency-Aware Task Scheduler
Design and implement a dependency-aware task scheduler that supports dynamic task registration, cycle detection, priority-based ready task retrieval, and state transitions.
Coding & AlgorithmsTechnical ScreenGraphHeapDesign - Scale AIMediumSoftware EngineerImplement Hook and Modify UI Interactions
This question evaluates a candidate's ability to implement reusable React hooks, manage asynchronous data fetching with loading/error/refetch semantics, transform API responses, and wire component state for modal, collapsible list, and button-driven UI interactions.
Software Engineering FundamentalsTechnical Screen - Scale AIEasySoftware EngineerImplement a Dependency-Aware Task Scheduler
This question evaluates skills in dependency management, deadline-driven scheduling and algorithmic data-structure design, focusing on handling directed acyclic graphs and ordering constraints.
Coding & AlgorithmsTechnical Screen - Scale AIMediumSoftware EngineerImplement a Task Processor
This problem tests your ability to manage tasks with dependencies using a combination of graph-based topological sorting (Kahn's algorithm) and a priority queue to ensure deadlines are respected.
Coding & AlgorithmsTechnical ScreenGraphsHeapsTopological Sort - Scale AIMediumMachine Learning EngineerImplement universal adversarial attack on GPT-2
Machine learning robustness prompt on safely evaluating universal adversarial prompts for GPT-2, covering threat modeling, differentiable optimization concepts, transferability, metrics, safety controls, and mitigation strategies without deployment-ready jailbreak details.
Machine LearningTechnical Screen - Scale AIMediumSoftware EngineerQuantify impact of your projects using STAR
This question evaluates a candidate's ability to use the STAR method to articulate project ownership, quantify technical and business impact, and demonstrate leadership, communication, and metrics literacy for a Software Engineer role.
Behavioral & LeadershipTechnical Screen - Scale AIMediumSoftware EngineerSchedule Ready Tasks by Deadline
This question evaluates understanding of task scheduling and dependency management in directed acyclic graphs, along with algorithmic selection and data-structure-based optimization for repeated minimum-deadline retrieval.
Coding & AlgorithmsTechnical Screen - Schneider ElectricMediumSoftware EngineerCompare JavaScript == and === operators
This question evaluates understanding of JavaScript equality semantics and type coercion, assessing a candidate's competency in language-specific comparison behavior and recognition of subtle runtime differences.
Software Engineering FundamentalsTechnical Screen - Schneider ElectricMediumSoftware EngineerDescribe debugging approach for software issues
This question evaluates debugging and troubleshooting skills, observability and tooling proficiency, prioritization, and cross-team communication within the Behavioral & Leadership domain of software engineering.
Behavioral & LeadershipTechnical Screen
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