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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 151–180 of 263 results
- MetaMediumData ScientistWrite SQL filtering, grouping, CASE, UNION tasks
This question evaluates proficiency with SQL filtering, aggregation, conditional logic, and set operations—specifically skills around WHERE filtering, GROUP BY/HAVING, CASE bucketing, FLOOR on aggregates, and UNION versus UNION ALL—within the Data Manipulation (SQL/Python) domain and emphasizes practical application of ANSI SQL.
Data Manipulation (SQL/Python)HR Screen - MicrosoftMediumProduct ManagerCross-Team Conflict Resolution & Product Launch
Practice answering a PM behavioral prompt about cross-team leadership, engineering conflict, and customer-centric course correction. The model STARL response shows how to align multiple teams, resolve delivery trade-offs, respond to missed customer expectations, quantify impact, and explain learning.
Behavioral & LeadershipHR Screen - MicrosoftMediumMachine Learning EngineerDesign a Retrieval-Grounded Local Sports News Recommender
This question tests the ability to design an end-to-end RAG system for news, focusing on temporal data relevance, hybrid retrieval strategies, and mitigation of LLM hallucinations.
ML System DesignHR ScreenRAGRecommendationSystem Design - MicrosoftMediumTechnical Program ManagerDesign an Azure IoT feature
Prepare for the Design an Azure IoT feature interview question with a structured prompt, clarifying questions, answer rubric, follow-up probes, and a stronger model solution. This product design & strategy guide helps candidates frame assumptions, trade-offs, metrics, and role-relevant evidence without relying on generic answers.
Product Design & StrategyHR Screen - MicrosoftMediumTechnical Program ManagerEvaluate an ML feature launch
Prepare for the Evaluate an ML feature launch interview question with a structured prompt, clarifying questions, answer rubric, follow-up probes, and a stronger model solution. This product / decision making guide helps candidates frame assumptions, trade-offs, metrics, and role-relevant evidence without relying on generic answers.
Product / Decision MakingHR Screen - MicrosoftMediumMachine Learning EngineerFind the Lowest Common Ancestor in a Binary Search Tree
This problem tests the ability to leverage the Binary Search Tree (BST) property to efficiently locate the Lowest Common Ancestor (LCA) of two nodes.
Coding & AlgorithmsHR ScreenBSTTreesRecursion - MicrosoftMediumMachine Learning EngineerFind the Lowest Common Ancestor in a Binary Tree
This problem tests tree traversal techniques and recursion logic to identify the deepest node that is an ancestor to two specified nodes in an arbitrary binary tree.
Coding & AlgorithmsHR ScreenTreesRecursionDFS - MicrosoftMediumMachine Learning EngineerImplement SFT Sample Packing
This problem tests your ability to efficiently pack variable-length sequences into fixed-length blocks for training, ensuring padding tokens do not influence the loss calculation.
Coding & AlgorithmsHR ScreenNLPData PreprocessingArrays - MicrosoftMediumProduct ManagerML Pipeline Stability & Evaluation
Practice diagnosing and stabilizing a time-series ML forecasting pipeline after online accuracy drops. The solution covers data ingestion, feature generation, training, serving, time-aware evaluation, segment metrics, baselines, online canaries, remediation, monitoring, and ML release governance.
Product / Decision MakingHR Screen - MicrosoftMediumProduct ManagerNorth Star Metrics & Experiment Design
Practice defining a North Star Metric and experiment for a Microsoft product using Teams as the example. The solution defines Weekly Actively Collaborating Users, leading indicators with SQL sketches, telemetry requirements, randomization unit, experiment metrics, guardrails, power, and analysis.
Product / Decision MakingHR Screen - MicrosoftMediumSoftware EngineerSenior Engineer Behavioral: Explaining Something You Learned Recently and Applied
A senior software engineer behavioral question asking the candidate to describe one thing they learned recently. It tests curiosity and learning habits, the ability to explain a new concept clearly and accurately with its limits, and whether the learning was applied to real work with a visible result.
Behavioral & LeadershipHR Screen - MicrosoftMediumSoftware EngineerSenior Engineer Behavioral: The Toughest Situation You Handled at Work and How
A senior software engineer behavioral question about the hardest challenge or most difficult situation the candidate has handled at work. It tests judgment under uncertainty and pressure, how the problem was diagnosed and prioritized, communication with stakeholders, an honest outcome, and lessons applied afterward.
Behavioral & LeadershipHR Screen - MillenniumEasyProduct ManagerAnswer first-round HR questions
Prepare first-round Product Manager HR screening answers for self-introduction, past experience, current product strategy, performance metrics, job-change motivation, and openness to adjacent roles. The solution emphasizes concise storytelling, fit, and professionalism.
Behavioral & LeadershipHR Screen - MongoDBMediumSoftware EngineerExplain Modern Python Features and Ecosystem
This question assesses your depth of knowledge regarding modern Python language evolution, the utility of popular libraries, and internal implementation details that impact memory and performance.
Software Engineering FundamentalsHR ScreenPythonInternalsMemory Management - MongoDBMediumSoftware EngineerHow do you answer common HR screen questions?
This question set evaluates senior-level behavioral competencies including professional storytelling, interpersonal communication, alignment with technical and cultural fit, and readiness to discuss compensation and career trajectory.
Behavioral & LeadershipHR Screen - Morgan StanleyMediumData ScientistDescribe Your Analysis and Visualization Toolkit
Tests your ability to articulate an end-to-end data analysis and visualization workflow clearly and concisely for recruiters and hiring managers, connecting technical tool choices directly to business outcomes.
Data Manipulation (SQL/Python)HR Screendata-analysissqlpython - Morgan StanleyMediumData ScientistExplain Your Risk Analytics Work to a Recruiter
This question tests your ability to translate complex technical risk modeling into a compelling professional narrative that emphasizes business impact, stakeholder collaboration, and personal accountability.
Behavioral & LeadershipHR ScreenBehavioralRisk AnalyticsStakeholder Management - Morgan StanleyMediumData ScientistImplement Factorial and Squares
A Morgan Stanley data scientist HR-screen live-coding warm-up: implement Python `factorial(n)` (iteratively, then explain the recursive version) and `squares(n)` returning the squares of the first n integers. Evaluates clean Python, the iteration-vs-recursion trade-off, time and space complexity analysis, input validation, and edge cases like n = 0 and negative input.
Coding & AlgorithmsHR Screen - Morgan StanleyMediumData ScientistSolve Market-Risk and Probability Questions
Morgan Stanley data-scientist HR-screen quant set covering four sub-questions: design a WTI/Brent crude stress-testing framework using heavy-tailed marginals and a t-copula for joint tail dependence; the variance of a sum of correlated normal variables and when the sum is normal; the Monty Hall switching probability; and the eight-balls one-heavier puzzle in two weighings. It probes both conceptual understanding and practical application of dependence modeling, scenario generation, and probabilistic reasoning.
Statistics & MathHR Screen - NVIDIAHardData ScientistDemonstrate cultural fit and sales-oriented leadership
This question evaluates cultural fit, sales-oriented leadership, customer-facing communication, stakeholder influence, conflict resolution, project failure analysis, product–business alignment, and career trajectory for a Data Scientist role.
Behavioral & LeadershipHR Screen - NVIDIAHardData ScientistDesign and explain robust web APIs for ML inference
This question evaluates a candidate's proficiency in designing HTTP REST APIs for ML inference, including API endpoints, versioning, idempotency, request/response schemas, authentication/authorization, rate limiting, observability, and backward-compatibility policies, and it falls under the Coding & Algorithms domain for a data scientist role.
Coding & AlgorithmsHR Screen - NVIDIAHardData ScientistDiagnose overfitting, DenseNet, preprocessing, CV
This question evaluates a candidate's understanding of overfitting and mitigation techniques, comparative architecture knowledge between DenseNet and ResNet, leakage-free preprocessing and harmonization for medical imaging, practical CNN hyperparameter tuning, and cross-validation strategies.
Machine LearningHR Screen - NVIDIAMediumData ScientistExplain NVIDIA fit and role value
This question evaluates a candidate's cultural and role fit, ability to communicate measurable impact, skill in mapping past data-science projects to posted responsibilities, awareness of recent organizational initiatives, and adaptability to team culture.
Behavioral & LeadershipHR Screen - NVIDIAHardData ScientistImplement CUDA-tiled matrix multiplication and explain architecture
This question evaluates a candidate's competency in CUDA GPU programming, parallel algorithms, and performance engineering for FP32 matrix multiplication, covering tiling strategies, memory hierarchy (global/shared/register), synchronization, numerical precision, and occupancy/resource analysis.
Coding & AlgorithmsHR Screen - NVIDIAHardData ScientistOptimize CUDA GEMM with tiling and coalescing
This question evaluates proficiency in GPU programming and performance optimization, assessing understanding of the CUDA execution model, memory hierarchy and bank conflicts, occupancy limits, and practical kernel design concerns for single-precision GEMM including tiling, coalescing, vectorized memory accesses and benchmarking.
Coding & AlgorithmsHR Screen - NVIDIAMediumData ScientistReflect on interview takeaways and adaptation
This question evaluates self-awareness, growth mindset, adaptive communication, and the ability to identify skill gaps and define measurable improvements within a Data Scientist interview context.
Behavioral & LeadershipHR Screen - NVIDIAMediumData ScientistResolve conflict and learn from failure
This question evaluates a data scientist's cross-functional conflict resolution, stakeholder management, decision-framework literacy, quantitative impact measurement, ownership of failed projects, and ability to run postmortems and implement guardrails; it is categorized as Behavioral & Leadership within the Data Science domain and tests both conceptual understanding of decision-making frameworks and practical application of communication and metric-driven processes. It is commonly asked to assess interpersonal influence, accountability, learning from failure, and the capacity to convert lessons into measurable process, monitoring, or risk-control improvements that enhance decision quality.
Behavioral & LeadershipHR Screen - NVIDIAHardData ScientistReverse linked lists, including k-group
This question evaluates understanding of linked list manipulation including pointer operations, in-place reversal techniques, recursion and stack-depth considerations, cycle detection, and time/space complexity analysis.
Coding & AlgorithmsHR Screen - NVIDIAMediumData ScientistSell GPUs to a retail CEO
This question evaluates a candidate's ability to build a business and technical case for deploying GPUs across enterprise analytics and AI workloads, testing competencies in ROI/TCO modeling, workload discovery, pilot planning, stakeholder alignment, risk identification, and crafting data‑backed rebuttals.
Behavioral & LeadershipHR Screen - NetflixMediumSoftware EngineerAnswer Netflix Culture Screen Questions
This question evaluates a candidate's cultural fit, communication clarity, leadership, ownership, and ability to summarize measurable impact for a senior software engineer role on a high-scale advertising product at a large streaming platform.
Behavioral & LeadershipHR Screen