Interview Cache
Master your next technical interview with real questions from industry leaders.
Master your next technical interview with real questions from industry leaders.
28 problems across 4 categories
| Done | Title | Difficulty | Updated |
|---|---|---|---|
| Write SQL Data Transformation Queries NewData EngineerCoding | Medium | May 4, 2026 | |
| Build a Transaction CSV Cleaning Pipeline NewData EngineerCoding | Medium | May 4, 2026 | |
| Implement a Rollback Key-Value Store Software EngineerCoding | Hard | Apr 9, 2026 | |
| Model other agents in simulation Machine Learning EngineerSystem Design | Hard | Feb 12, 2026 | |
| Design RL reward for speed limits Machine Learning Engineer | Hard | Feb 12, 2026 | |
| Compute suffix sums over waypoints Machine Learning EngineerCoding | Hard | Feb 12, 2026 | |
| Coordinate workers across two exclusive targets Software EngineerCoding | Hard | Jan 22, 2026 | |
| Implement 2D convolution forward pass Machine Learning EngineerCoding | Easy | Dec 15, 2025 | |
| Answer HR screening questions for data role Software EngineerBehavioral | Easy | Oct 8, 2025 | |
| Verify permutation in-place and implement fast power Software EngineerCoding | Medium | Sep 6, 2025 | |
| Implement automatic braking logic in Python Machine Learning EngineerCoding | Medium | Sep 6, 2025 | |
| Implement and vectorize NumPy Conv2D Machine Learning Engineer | Medium | Sep 6, 2025 | |
| Design a contiguous segment allocator Software EngineerCoding | Medium | Sep 6, 2025 | |
| Compute Conv2D parameter counts Machine Learning Engineer | Easy | Sep 6, 2025 | |
| Compare RNNs, LSTMs, Transformers, and MPC Machine Learning Engineer | Hard | Sep 6, 2025 | |
| Calculate trapped water between elevation bars Software EngineerCoding | Medium | Sep 6, 2025 | |
| Solve classic array, graph, and parsing problems Software EngineerCoding | Medium | Aug 14, 2025 | |
| Design synchronization for water molecule assembly Software EngineerSystem Design | Medium | Aug 14, 2025 | |
| Implement attention and Transformer with backward pass Machine Learning Engineer | Hard | Aug 12, 2025 | |
| Explain and derive importance sampling estimators Machine Learning Engineer | Hard | Aug 12, 2025 | |
| Compute nearest index within threshold after walking distances Machine Learning Engineer | Medium | Aug 12, 2025 | |
| Optimize Trapping Rain Water Software EngineerCoding | Medium | Aug 4, 2025 | |
| Find latency pairs with minimal difference Software EngineerCoding | Medium | Jul 26, 2025 | |
| Explain HTTP methods and your usage Software EngineerSystem Design | Medium | Jul 26, 2025 | |
| Design concurrency-safe shared payment account API Software EngineerSystem Design | Hard | Jul 26, 2025 | |
| Design an LLM math-solving chain Machine Learning EngineerSystem Design | Hard | Jul 26, 2025 | |
| Describe how you use Kubernetes Software EngineerSystem Design | Medium | Jul 26, 2025 | |
| Compare RDBMS and NoSQL trade-offs Software EngineerSystem Design | Medium | Jul 26, 2025 |