| Compute Earliest Bus Arrival Software EngineerCoding | Medium | Apr 18, 2026 |
| Find the Extra Edge Software EngineerCoding | Hard | Apr 14, 2026 |
| Rotate a Matrix In Place Software EngineerCoding | Medium | Apr 4, 2026 |
| Implement Masked Multi-Head Self-Attention Machine Learning Engineer | Easy | Apr 4, 2026 |
| Encode and Rebuild a Binary Tree Data EngineerCoding | Hard | Apr 2, 2026 |
| Wrap Matching Substrings in Bold Tags Machine Learning EngineerCoding | Medium | Mar 16, 2026 |
| Critique a Linear Regression Workflow Data Scientist | Easy | Mar 9, 2026 |
| How to root-cause Wi‑Fi chip stops after 30 minutes Software EngineerCoding | Medium | Mar 6, 2026 |
| How to debug a Python loop-condition bug Software EngineerCoding | Medium | Mar 6, 2026 |
| Generate Tower of Hanoi moves Software EngineerCoding | Medium | Mar 6, 2026 |
| Optimize image filters on device Machine Learning EngineerSystem Design | Medium | Mar 1, 2026 |
| Implement permutations and image retrieval Machine Learning EngineerCoding | Medium | Mar 1, 2026 |
| Explain dataset size, generalization, and U-Net skips Machine Learning Engineer | Medium | Mar 1, 2026 |
| Design a news feed ranking system Machine Learning EngineerSystem Design | Medium | Mar 1, 2026 |
| Design a deck of cards with shuffle/draw Software EngineerCoding | Medium | Mar 1, 2026 |
| Design a CPA system for ad bidding Machine Learning EngineerSystem Design | Medium | Mar 1, 2026 |
| Debug a PyTorch U-Net shape mismatch Machine Learning EngineerCoding | Medium | Mar 1, 2026 |
| Compare DCN v1 vs v2 and A/B test Machine Learning Engineer | Medium | Mar 1, 2026 |
| Analyze vision model failures Machine Learning Engineer | Medium | Mar 1, 2026 |
| Explain thermal and signal fundamentals Software EngineerCoding | Hard | Feb 25, 2026 |
| Design a smartwatch sensor subsystem Software EngineerSystem Design | Hard | Feb 25, 2026 |
| Compare audio preprocessing and training Machine Learning Engineer | Medium | Feb 15, 2026 |
| Zero out duplicates and sort an array Software EngineerCoding | Medium | Feb 12, 2026 |
| Merge overlapping time intervals Software EngineerCoding | Medium | Feb 12, 2026 |
| Implement a debounce function Software EngineerCoding | Medium | Feb 12, 2026 |
| Explain key React concepts and error handling Software EngineerCoding | Medium | Feb 12, 2026 |
| Compute conflicts and minimum meeting rooms Software EngineerCoding | Hard | Feb 12, 2026 |
| Make tree iterators safe under concurrency Software EngineerCoding | Hard | Feb 11, 2026 |
| Implement a lazy inorder traversal iterator Software EngineerCoding | Hard | Feb 11, 2026 |
| Count subarrays with sum equals k Software EngineerCoding | Hard | Feb 11, 2026 |
| Solve linked list, grid BFS, and median queries Software EngineerCoding | Medium | Jan 22, 2026 |
| Implement flood fill using BFS and DFS Software EngineerCoding | Easy | Jan 22, 2026 |
| Design ad click aggregator and file sync service Software EngineerSystem Design | Medium | Jan 22, 2026 |
| Explain your LLM project and contributions Software EngineerBehavioral | Medium | Jan 17, 2026 |
| Explain Runnable vs Callable and thread-safe Singleton Software EngineerCoding | Medium | Jan 17, 2026 |
| Write a generator for substring pattern matches Machine Learning EngineerCoding | Medium | Dec 15, 2025 |
| Implement TF-IDF scoring for documents Machine Learning EngineerCoding | Medium | Dec 15, 2025 |
| Design a multimodal RAG assistant Machine Learning EngineerSystem Design | Medium | Dec 15, 2025 |
| Improve chip performance without process advances Software EngineerCoding | Medium | Dec 8, 2025 |
| Explain use cases for clock synchronizers Software EngineerCoding | Medium | Dec 8, 2025 |
| Describe common RTL lint warnings and errors Software EngineerCoding | Medium | Dec 8, 2025 |
| Solve interval, grid-fill, and heap tasks Software EngineerCoding | Medium | Nov 27, 2025 |
| How would you handle an unresponsive teammate? Software EngineerBehavioral | Medium | Nov 27, 2025 |
| Implement most_frequent_key without using max() Data EngineerCoding | Easy | Nov 16, 2025 |
| Solve three easy algorithm problems Software EngineerCoding | Easy | Nov 11, 2025 |
| Remove shortest subarray to sort array Data ScientistCoding | Medium | Oct 13, 2025 |
| Clarify status, education, and multi-role strategy Data ScientistBehavioral | Medium | Oct 13, 2025 |
| Diagnose post-release conversion regression rigorously Data ScientistProduct Sense | Medium | Oct 13, 2025 |
| Find longest uniform substring after k replacements Data ScientistCoding | Medium | Oct 13, 2025 |
| Build leak-safe sklearn model with calibration Data Scientist | Medium | Oct 13, 2025 |
| Detect sessions and gaps using SQL LEAD Data Scientist | Medium | Oct 13, 2025 |
| Compare Normal vs Poisson; test dispersion and approximate tails Data Scientist | Medium | Oct 13, 2025 |
| Evaluate a model and choose metrics Data ScientistProduct Sense | Hard | Oct 13, 2025 |
| Compute optimal matrix-chain multiplication order Data ScientistCoding | Hard | Oct 13, 2025 |
| Implement random forest with OOB and imbalance Data Scientist | Hard | Oct 13, 2025 |
| Explain CNN shapes, params, and trade-offs Data Scientist | Medium | Oct 13, 2025 |
| Handle conflict, priorities, and harsh clients Data ScientistBehavioral | Hard | Oct 13, 2025 |
| Sort and merge string lists by length Software EngineerCoding | Medium | Sep 6, 2025 |
| Refactor rock–paper–scissors for config and ties Software EngineerCoding | Medium | Sep 6, 2025 |
| Migrate a monolithic wallet to microservices Software EngineerSystem Design | Hard | Sep 6, 2025 |
| Introduce yourself and align with team focus Software EngineerBehavioral | Medium | Sep 6, 2025 |
| Implement rotation, LRU cache, streaming median, cycle detection Software EngineerCoding | Medium | Sep 6, 2025 |
| Implement multi-head self-attention correctly Software Engineer | Hard | Sep 6, 2025 |
| Implement DFS for connected components Software EngineerCoding | Medium | Sep 6, 2025 |
| Implement deep clone for complex objects Software EngineerCoding | Medium | Sep 6, 2025 |
| Implement a robust socket message reader Software EngineerSystem Design | Medium | Sep 6, 2025 |
| Find top-k frequent elements efficiently Software EngineerCoding | Medium | Sep 6, 2025 |
| Discuss feedback, AI work, learning, and motivation Software EngineerBehavioral | Medium | Sep 6, 2025 |
| Design video platform and catalog system Software EngineerSystem Design | Hard | Sep 6, 2025 |
| Design card deck with shuffle and order Software EngineerCoding | Medium | Sep 6, 2025 |
| Design and scale a Yelp-like platform Software EngineerSystem Design | Hard | Sep 6, 2025 |
| Design a rolling five-minute hit counter Software EngineerCoding | Medium | Sep 6, 2025 |
| Describe your operations experience and impact Software EngineerBehavioral | Medium | Sep 6, 2025 |
| Compute minimum required meeting rooms Software EngineerCoding | Medium | Sep 6, 2025 |
| Write queries to compute salary and budget stats Data Scientist | Easy | Aug 24, 2025 |
| Investigate cross-country engagement and ads experiments Data ScientistProduct Sense | Easy | Aug 24, 2025 |
| Implement bag-of-words similarity search from scratch Machine Learning EngineerCoding | Medium | Aug 13, 2025 |
| Explain annotation agreement and LLM vs human judges Machine Learning Engineer | Hard | Aug 13, 2025 |
| Compute top three scores per student Software EngineerCoding | Medium | Aug 9, 2025 |
| Compute island size in grid Software EngineerCoding | Medium | Aug 9, 2025 |
| Design a snapshotable key-value store Software EngineerCoding | Medium | Aug 8, 2025 |
| Find Smallest Missing Positive Integer in O(n) Time Data ScientistCoding | Medium | Aug 4, 2025 |
| Explain Your Motivation and Alignment with Apple Values Data ScientistBehavioral | Medium | Aug 4, 2025 |
| Examine Data to Boost Instagram Purchases Effectively Data ScientistProduct Sense | Medium | Aug 4, 2025 |
| Differentiate P-value and Confidence Interval in Statistics Data Scientist | Medium | Aug 4, 2025 |
| Design an A/B Test for Homepage Layout Impact Data ScientistProduct Sense | Medium | Aug 4, 2025 |
| Design A/B Test for Search Feature Effectiveness Data ScientistProduct Sense | Medium | Aug 4, 2025 |
| Describe Your Role in a Recent Successful Project Data ScientistBehavioral | Medium | Aug 4, 2025 |
| Compute and Rank Store Revenue by Region Using Pandas Data Scientist | Medium | Aug 4, 2025 |
| Analyze TSV File for User Page Visits and Patterns Data Scientist | Medium | Aug 4, 2025 |
| Design an ML keyword recommendation pipeline Machine Learning EngineerSystem Design | Hard | Jul 26, 2025 |
| Describe recent project experiences Machine Learning EngineerBehavioral | Medium | Jul 26, 2025 |
| Maximize funds with capital-gated projects Software EngineerCoding | Medium | Jul 16, 2025 |
| Describe your recent project and scope Software EngineerBehavioral | Medium | Jul 16, 2025 |
| Write the logistic regression loss function Data Scientist | Easy | Jul 15, 2025 |
| Implement sparse vector dot product and cosine similarity Data ScientistCoding | Medium | Jul 15, 2025 |
| Implement a robust REST API method Software EngineerSystem Design | Hard | Jul 15, 2025 |
| Explain Python lists, dicts, and concurrency Software Engineer | Medium | Jul 15, 2025 |
| Investigate Conversion Drop: Metrics, Analyses, Techniques Explained Data ScientistProduct Sense | Medium | Jul 12, 2025 |
| Find Maximum Sum of Contiguous Subarray Length k Data ScientistCoding | Medium | Jul 12, 2025 |
| Construct a Churn-Prediction Pipeline Using Scikit-Learn Data Scientist | Medium | Jul 12, 2025 |
| Compare Normal and Poisson Distributions in Statistics Data Scientist | Medium | Jul 12, 2025 |
