| Evaluate Biker Feature Success Data ScientistProduct Sense | Hard | Apr 25, 2026 |
| Calculate Order Request Metrics Data Scientist | Hard | Apr 25, 2026 |
| Maximize Chef Assignment Profit Software EngineerCoding | Medium | Apr 23, 2026 |
| Compute Courier Delivery Pay Software EngineerCoding | Easy | Apr 12, 2026 |
| Compute Nearest Destination Distances Software EngineerCoding | Easy | Apr 11, 2026 |
| Design a Homepage Store Recommender Data Scientist | Hard | Mar 15, 2026 |
| How would you test product changes? Data ScientistProduct Sense | Hard | Mar 10, 2026 |
| How to test bike delivery? Data ScientistProduct Sense | Medium | Mar 1, 2026 |
| Investigate LA successful orders drop Product AnalystProduct Sense | Easy | Feb 19, 2026 |
| How would you diagnose a completed orders drop? Data ScientistProduct Sense | Easy | Feb 14, 2026 |
| Design a resilient bootstrap API Software EngineerSystem Design | Medium | Feb 13, 2026 |
| How would you test a bike delivery option? Data ScientistProduct Sense | Easy | Feb 12, 2026 |
| How to prepare for AI-assisted coding interviews? Software EngineerCoding | Hard | Feb 12, 2026 |
| Count changed nodes between two menu trees Software EngineerCoding | Hard | Feb 11, 2026 |
| Design experiments for payments, search, and promotions Data ScientistProduct Sense | Easy | Feb 5, 2026 |
| Minimize batches and allocate riders by time Machine Learning EngineerCoding | Medium | Feb 3, 2026 |
| Design personalized restaurant search and recommendations Machine Learning EngineerSystem Design | Medium | Feb 3, 2026 |
| Design a donation service for a 3‑day charity Software EngineerSystem Design | Medium | Jan 18, 2026 |
| Describe a conflict and how you resolved it Software EngineerBehavioral | Medium | Jan 18, 2026 |
| Design a 3-day online donation system Software EngineerSystem Design | Medium | Jan 2, 2026 |
| Debug and harden a driver-selection component Software EngineerCoding | Medium | Jan 2, 2026 |
| Compute dasher pay with peak-hour query Software EngineerCoding | Medium | Jan 2, 2026 |
| Answer feedback, conflict, and failure questions Software EngineerBehavioral | Medium | Jan 2, 2026 |
| Design a donations service with 3-day rolling totals Software EngineerSystem Design | Medium | Dec 16, 2025 |
| Compute courier pay and implement load balancing Software EngineerCoding | Medium | Dec 16, 2025 |
| Compute cart total with best promotion Software EngineerCoding | Medium | Dec 8, 2025 |
| Find longest common ordered restaurant list Software EngineerCoding | Hard | Nov 7, 2025 |
| Design API that aggregates three downstream APIs Software EngineerSystem Design | Medium | Nov 4, 2025 |
| How would you target promotions to grow consumers? Machine Learning Engineer | Medium | Oct 17, 2025 |
| How would you prevent wrong items in deliveries? Machine Learning EngineerBehavioral | Medium | Oct 17, 2025 |
| Find closest value to a target in a BST Machine Learning EngineerCoding | Medium | Oct 17, 2025 |
| Design a scalable recommendation serving system Machine Learning EngineerSystem Design | Medium | Oct 17, 2025 |
| Write SQL for late-delivery metrics by window Data Scientist | Medium | Oct 13, 2025 |
| Diagnose and experiment to reduce late deliveries Data ScientistProduct Sense | Hard | Oct 13, 2025 |
| Handle conflict and time-pressured decision Data ScientistBehavioral | Medium | Oct 13, 2025 |
| Drive app installs from web traffic Data ScientistProduct Sense | Hard | Oct 13, 2025 |
| Decompose and optimize delivery operational costs Data ScientistProduct Sense | Hard | Oct 13, 2025 |
| Diagnose cold-food spike and design experiments Data ScientistProduct Sense | Hard | Oct 13, 2025 |
| Compute rolling cold-delivery rates with windows Data Scientist | Medium | Oct 13, 2025 |
| Write SQL for percent and window changes Data Scientist | Medium | Oct 13, 2025 |
| Design and analyze a switchback experiment Data ScientistProduct Sense | Hard | Oct 13, 2025 |
| Design and evaluate an uplift model Data Scientist | Hard | Oct 13, 2025 |
| Define and compute surge pricing metrics Data Scientist | Medium | Oct 13, 2025 |
| Model schema and query new-market readiness Data Scientist | Medium | Oct 13, 2025 |
| Design analytics for a new-market launch Data ScientistProduct Sense | Hard | Oct 13, 2025 |
| Explain motivation and align expectations for L4 role Data ScientistBehavioral | Medium | Oct 13, 2025 |
| Write SQL for cold-complaint diagnostics with LAG/QUALIFY Data Scientist | Medium | Oct 13, 2025 |
| Design analysis to reduce cold-delivery complaints Data ScientistProduct Sense | Hard | Oct 13, 2025 |
| Define and compute retention and churn precisely Data Scientist | Hard | Oct 13, 2025 |
| Decide and test a 20% discount strategy Data ScientistProduct Sense | Hard | Oct 13, 2025 |
| Experiment on increasing order notifications Data ScientistProduct Sense | Hard | Oct 13, 2025 |
| Evaluate and test a Top Dasher program Data ScientistProduct Sense | Hard | Oct 13, 2025 |
| Prioritize projects and manage tight deadlines Data ScientistBehavioral | Hard | Oct 13, 2025 |
| Diagnose LA completed-order drop and design experiment Data ScientistProduct Sense | Hard | Oct 13, 2025 |
| Refactor SQL into an aggregated report Data Scientist | Medium | Oct 13, 2025 |
| Write SQL to backtest refund policy Data Scientist | Medium | Oct 13, 2025 |
| Calculate power and test duration Data Scientist | Medium | Oct 13, 2025 |
| Design an experiment for thermal bags Data ScientistProduct Sense | Hard | Oct 13, 2025 |
| Diagnose and reduce cold-food refund costs Data ScientistProduct Sense | Hard | Oct 13, 2025 |
| Explain interest and influence stakeholders Data ScientistBehavioral | Hard | Oct 13, 2025 |
| Compute power and interpret guardrails Data Scientist | Hard | Oct 13, 2025 |
| Build ETA prediction and simulate impact Data Scientist | Hard | Oct 13, 2025 |
| Design and analyze batching algorithm experiment Data ScientistProduct Sense | Hard | Oct 13, 2025 |
| Write complex SQL on DoorDash data Data Scientist | Medium | Oct 13, 2025 |
| Implement minimum window substring with counts Data ScientistCoding | Medium | Oct 13, 2025 |
| Solve multi-part SQL with sliding windows Data Scientist | Medium | Oct 13, 2025 |
| Build a late-delivery risk model Data Scientist | Hard | Oct 13, 2025 |
| Write SQL for cuisine median delivery times Data Scientist | Medium | Oct 13, 2025 |
| Design an experiment for order batching Data ScientistProduct Sense | Hard | Oct 13, 2025 |
| Explain why DoorDash and job change Data ScientistBehavioral | Hard | Oct 13, 2025 |
| Diagnose rising cold-food complaints and choose metrics Data ScientistProduct Sense | Medium | Sep 25, 2025 |
| Scale the cache to a distributed system Software EngineerSystem Design | Hard | Sep 6, 2025 |
| Implement string pattern matching Software EngineerCoding | Medium | Sep 6, 2025 |
| Implement round-robin load balancer Software EngineerCoding | Medium | Sep 6, 2025 |
| Implement image carousel with comments and upvotes Software EngineerCoding | Medium | Sep 6, 2025 |
| Implement dasher active-time calculator Software EngineerCoding | Medium | Sep 6, 2025 |
| Implement Bootstrap-like responsive utility classes Software Engineer | Hard | Sep 6, 2025 |
| Implement and compare round-robin and consistent hashing Software EngineerCoding | Medium | Sep 6, 2025 |
| Implement a gig worker payout calculator Software Engineer | Medium | Sep 6, 2025 |
| Generate the next lexicographic ordering Software EngineerCoding | Medium | Sep 6, 2025 |
| Find the nearest city sharing axis Software EngineerCoding | Medium | Sep 6, 2025 |
| Find nearest courier for each customer Software EngineerCoding | Medium | Sep 6, 2025 |
| Explain conflict resolution and growth Software EngineerBehavioral | Hard | Sep 6, 2025 |
| Discuss Projects and Planning Improvements Software EngineerBehavioral | Medium | Sep 6, 2025 |
| Discuss feedback, help, and conflict Software EngineerBehavioral | Medium | Sep 6, 2025 |
| Design review system with voting and rewards Software EngineerSystem Design | Hard | Sep 6, 2025 |
| Design dynamic connectivity with alive nodes Software EngineerCoding | Medium | Sep 6, 2025 |
| Design dasher-to-order assignment algorithm Software EngineerCoding | Medium | Sep 6, 2025 |
| Design cron scheduler and reward/review system Software EngineerSystem Design | Hard | Sep 6, 2025 |
| Design an async donation payment platform Software EngineerSystem Design | Hard | Sep 6, 2025 |
| Design a scalable notification system Software EngineerSystem Design | Hard | Sep 6, 2025 |
| Design a scalable food news feed Software EngineerSystem Design | Hard | Sep 6, 2025 |
| Design a resilient dasher payment system Software EngineerSystem Design | Hard | Sep 6, 2025 |
| Describe your most impactful recent project Software EngineerBehavioral | Medium | Sep 6, 2025 |
| Describe project impact and feedback Software EngineerBehavioral | Medium | Sep 6, 2025 |
| Describe best project and technical details Software EngineerBehavioral | Medium | Sep 6, 2025 |
| Deep dive a project's architecture Software EngineerSystem Design | Hard | Sep 6, 2025 |
| Debug using logs and allocate tasks Software EngineerCoding | Medium | Sep 6, 2025 |
| Debug a cache incident end-to-end Software Engineer | Hard | Sep 6, 2025 |
| Compute nearest dashmart distances for queries Software EngineerCoding | Medium | Sep 6, 2025 |
| Compute Differences Between Catalog Trees Software EngineerCoding | Medium | Sep 6, 2025 |
| Compute delivery times on a grid Software EngineerCoding | Medium | Sep 6, 2025 |
| Compute dasher payout from API data Software Engineer | Medium | Sep 6, 2025 |
| Compute dasher pay from deliveries Software Engineer | Medium | Sep 6, 2025 |
| Compare front-end state management approaches Software Engineer | Hard | Sep 6, 2025 |
| Answer rapid behavioral prompts Software EngineerBehavioral | Medium | Sep 6, 2025 |
| Explain a domain project in depth Software EngineerBehavioral | Medium | Aug 13, 2025 |
| Design hierarchical path store with create/set/get/remove Software EngineerCoding | Medium | Aug 13, 2025 |
| Design a 3-day donation platform Software EngineerSystem Design | Hard | Aug 13, 2025 |
| Debug a driver assignment bug Software EngineerCoding | Medium | Aug 13, 2025 |
| Design payment and delivery services for dasher payouts Software EngineerSystem Design | Hard | Aug 12, 2025 |
| Implement consistent hashing ring Software EngineerCoding | Medium | Aug 9, 2025 |
| Find minimum processing rate Software EngineerCoding | Medium | Aug 9, 2025 |
| Design limited-time donation platform Software EngineerSystem Design | Hard | Aug 9, 2025 |
| Debug round-robin request router Software EngineerSystem Design | Medium | Aug 9, 2025 |
| Compute courier pay with peak-hour rules Software Engineer | Medium | Aug 9, 2025 |
| Generate the next lexicographic array arrangement Software EngineerCoding | Medium | Aug 8, 2025 |
| Explain handling conflicts and learning from mistakes Software EngineerBehavioral | Medium | Aug 8, 2025 |
| Design a scalable notification system for spikes Software EngineerSystem Design | Hard | Aug 8, 2025 |
| Compute nearest courier for each customer Software EngineerCoding | Medium | Aug 8, 2025 |
| Design consistent hashing with a sorted map Software EngineerSystem Design | Medium | Aug 7, 2025 |
| Design a 3-day donation campaign platform Software EngineerSystem Design | Hard | Aug 7, 2025 |
| Describe challenges and give constructive feedback Software EngineerBehavioral | Medium | Aug 7, 2025 |
| Debug round-robin, DashMap, and simple cache Software EngineerCoding | Medium | Aug 7, 2025 |
| Solve tree distance and design file system Software EngineerCoding | Medium | Aug 4, 2025 |
| Solve string match and DashMart BFS Software EngineerCoding | Medium | Aug 4, 2025 |
| Design notification and project architecture Software EngineerSystem Design | Hard | Aug 4, 2025 |
| Compute earliest arrival in time-grid Software EngineerCoding | Medium | Aug 4, 2025 |
| Quantify and Forecast DoorDash vs. In-Store Price Inflation Data Scientist | Hard | Aug 4, 2025 |
| Measure Late Deliveries and Identify Top Delayed Restaurants Data Scientist | Medium | Aug 4, 2025 |
| Measure Impact of Merchant Variety on Consumer Experience Data ScientistProduct Sense | Medium | Aug 4, 2025 |
| Investigate Pop-up Impact on Partner Referral Conversions Data ScientistProduct Sense | Medium | Aug 4, 2025 |
| Investigate Causes of Increased Driver Wait Time Data ScientistProduct Sense | Medium | Aug 4, 2025 |
| Investigate Causes of Cold Food Deliveries and Solutions Data ScientistProduct Sense | Medium | Aug 4, 2025 |
| Identify Key Metrics to Address Delivery Delays Data ScientistProduct Sense | Medium | Aug 4, 2025 |
| Identify Key Drivers of Delivery Decline in Los Angeles Data ScientistProduct Sense | Hard | Aug 4, 2025 |
| Forecast and Analyze DoorDash Menu Price Inflation Gap Data Scientist | Medium | Aug 4, 2025 |
| Evaluate Top-Dasher Program's Benefits and Challenges Data ScientistProduct Sense | Hard | Aug 4, 2025 |
| Evaluate Key Metrics for Biker-Dasher Program Success Data ScientistProduct Sense | Medium | Aug 4, 2025 |
| Evaluate Impact of $1 Fee on Fast-Food Profitability Data ScientistProduct Sense | Medium | Aug 4, 2025 |
| Evaluate Dasher Initiatives with A/B Testing and Metrics Data ScientistProduct Sense | Hard | Aug 4, 2025 |
| Evaluate Account-Partner Performance with Observational Data Analysis Data ScientistProduct Sense | Hard | Aug 4, 2025 |
| Evaluate Account-Partner Onboarding with Success Metrics Data ScientistProduct Sense | Hard | Aug 4, 2025 |
| Diagnose Delivery Delays: Key Metrics and Experiment Design Data ScientistProduct Sense | Medium | Aug 4, 2025 |
| Diagnose Decline in Delivery Success: Data, Hypotheses, Tests Data ScientistProduct Sense | Medium | Aug 4, 2025 |
| Diagnose Causes of High Out-of-Stock Rate in Groceries Data ScientistProduct Sense | Hard | Aug 4, 2025 |
| Determine Success Metrics for Biker Dasher Program Launch Data ScientistProduct Sense | Medium | Aug 4, 2025 |
| Determine Optimal Dasher Compensation Model and Diagnose Metric Drops Data ScientistProduct Sense | Hard | Aug 4, 2025 |
| Design Experiments to Measure Promotion Scheduling Impact Data ScientistProduct Sense | Medium | Aug 4, 2025 |
| Derive Insights from DoorDash Order Database Data Scientist | Medium | Aug 4, 2025 |
| Define and Measure Merchant Variety's Impact on Consumers Data ScientistProduct Sense | Medium | Aug 4, 2025 |
| Convince Stakeholders: Prioritize Data Science Projects Effectively Data ScientistBehavioral | Medium | Aug 4, 2025 |
| Calculate Late Delivery Percentage and Top Customers Data Scientist | Medium | Aug 4, 2025 |
| Analyze User and Merchant Behavior with Order Data Data Scientist | Medium | Aug 4, 2025 |
| Analyze Order Spending Patterns Across Cities Using SQL Data Scientist | Medium | Aug 4, 2025 |
| Analyze Monthly Customer and Restaurant Spend Data Data Scientist | Medium | Aug 4, 2025 |
| Analyze Driver Requests for Food Delivery Orders Data Scientist | Medium | Aug 4, 2025 |
| Analyze Customer Purchase Patterns Using SQL Query Data Scientist | Medium | Aug 4, 2025 |
| Analyze Causes for 10% Decline in LA Deliveries Data ScientistProduct Sense | Medium | Aug 4, 2025 |
| Analyze Biker Dasher Program's Impact and Success Metrics Data ScientistProduct Sense | Medium | Aug 4, 2025 |
| Solve BFS grid delivery routing Software EngineerCoding | Medium | Jul 31, 2025 |
| Implement string matching with follow-up Software EngineerCoding | Medium | Jul 31, 2025 |
| Design a scalable notification system Software EngineerSystem Design | Hard | Jul 31, 2025 |
| Deep-dive a project architecture Software EngineerSystem Design | Hard | Jul 31, 2025 |
| Answer rapid-fire behavioral questions Software EngineerBehavioral | Medium | Jul 31, 2025 |
| Implement string-path file system operations Software EngineerCoding | Medium | Jul 29, 2025 |
| Find names similar by one swap Software EngineerCoding | Medium | Jul 29, 2025 |
| Discuss project motivation and challenges Software EngineerBehavioral | Medium | Jul 29, 2025 |
| Discuss ML infrastructure fundamentals Machine Learning EngineerSystem Design | Hard | Jul 29, 2025 |
| Determine equality after limited swaps Software EngineerCoding | Medium | Jul 29, 2025 |
| Count changed nodes in N-ary trees Software EngineerCoding | Medium | Jul 29, 2025 |
| Identify members lacking specialty coverage Software EngineerCoding | Medium | Jul 28, 2025 |
| Find max distance between alive tree nodes Software EngineerCoding | Medium | Jul 28, 2025 |
| Discuss project experience and teamwork Software EngineerBehavioral | Medium | Jul 28, 2025 |
| Design a hierarchical path registry Software EngineerCoding | Medium | Jul 28, 2025 |
| Design a distributed cron job scheduler Software EngineerSystem Design | Hard | Jul 28, 2025 |
| Compute nearest-exit distances in a grid Software EngineerCoding | Medium | Jul 28, 2025 |
| Implement image carousel with comments and upvotes Software EngineerSystem Design | Hard | Jul 26, 2025 |
| Design a service aggregator with robust error handling Software EngineerSystem Design | Hard | Jul 26, 2025 |
| Design a food news feed and backend flow Software EngineerSystem Design | Hard | Jul 26, 2025 |
| Count clusters covered by dashers Software EngineerCoding | Medium | Jul 26, 2025 |
| Compare frontend data management beyond Redux Software Engineer | Hard | Jul 26, 2025 |
| Implement a hierarchical key-value store Software EngineerCoding | Medium | Jul 17, 2025 |
| Handle a payment-service incident with resource spikes Software EngineerBehavioral | Hard | Jul 17, 2025 |
| Design a scalable Instagram-like platform Software EngineerSystem Design | Hard | Jul 17, 2025 |
| Demonstrate leadership and team development Software EngineerBehavioral | Medium | Jul 17, 2025 |
| Compute nearest dashmart and busiest assignments Software EngineerCoding | Medium | Jul 17, 2025 |
| Implement a simple service with tests Software EngineerCoding | Medium | Jul 15, 2025 |
| Discuss integrity vs efficiency trade-offs Software EngineerBehavioral | Medium | Jul 15, 2025 |
| Design a distributed cron scheduler Software EngineerSystem Design | Hard | Jul 15, 2025 |
| Debug and refactor a legacy module Software EngineerCoding | Medium | Jul 15, 2025 |
| Build an API aggregator with concurrency and retries Software EngineerSystem Design | Hard | Jul 15, 2025 |
| Resolve Conflicts and Deliver Results Under Pressure Data ScientistBehavioral | Medium | Jul 12, 2025 |
| Investigate Causes of Cold Meal Deliveries Data ScientistProduct Sense | Medium | Jul 12, 2025 |
| Identify Major Components of DoorDash's Operational Costs Data ScientistProduct Sense | Medium | Jul 12, 2025 |
| Identify Challenges and Solutions for Bike-Delivery Program Data ScientistBehavioral | Medium | Jul 12, 2025 |
| Generate Weekly Revenue and Engagement Summary with Pandas Data Scientist | Medium | Jul 12, 2025 |
| Evaluate Impact of Bicycle Deliveries on Efficiency and Costs Data ScientistProduct Sense | Medium | Jul 12, 2025 |
| Diagnose Cold Food Deliveries with Key Metrics Analysis Data ScientistProduct Sense | Medium | Jul 12, 2025 |
| Design Experiments to Evaluate Courier Initiatives Effectively Data ScientistProduct Sense | Hard | Jul 12, 2025 |
| Design A/B Test to Evaluate Algorithm's Revenue Impact Data Scientist | Hard | Jul 12, 2025 |
| Boost App Installs: Analyze and Experiment with Conversion Funnel Data ScientistProduct Sense | Medium | Jul 12, 2025 |
| Assess Success Criteria for Bike-Courier Delivery Launch Data ScientistProduct Sense | Hard | Jul 12, 2025 |
| Analyze Spending Patterns and Restaurant Performance Using SQL/Python Data Scientist | Medium | Jul 12, 2025 |
| Analyze Retention Data for Geo-Targeted Feature Launch Data ScientistProduct Sense | Medium | Jul 12, 2025 |
| Handle merchant complaint about excessive demand Data ScientistBehavioral | Medium | Jul 7, 2025 |
| Find orders from bottom-quartile revenue restaurants Data Scientist | Medium | Jul 7, 2025 |
| Diagnose why average waiting time increased Data ScientistProduct Sense | Medium | Jul 7, 2025 |
| Define metrics for new market expansion success Data ScientistProduct Sense | Hard | Jul 7, 2025 |
| Improve biker delivery with metrics and levers Data ScientistProduct Sense | Easy | Jul 1, 2025 |
| Design a Top Dasher experiment with interference Data ScientistProduct Sense | Easy | Jul 1, 2025 |
