Design Uber Ride Matching
Last updated: November 22, 2025
Quick Overview
Design the architecture for Uber Ride Matching. Cover scalability, data storage, caching, and real-time requirements.
Uber
November 22, 2025291
6
650 solved
Design the architecture for Uber Ride Matching. Cover scalability, data storage, caching, and real-time requirements.
Uber asks this during the Technical Screen to assess your architectural thinking. They want to see how you decompose a complex problem, choose appropriate technologies, and reason about failure modes. Strong candidates proactively discuss monitoring, alerting, and operational concerns.
What the Interviewer Expects
- Clearly define functional and non-functional requirements
- Propose a reasonable high-level architecture with core components
- Choose appropriate data storage solutions with basic justification
- Discuss basic scaling strategies (horizontal scaling, caching)
- Identify potential bottlenecks and suggest simple solutions
Key Topics to Cover
How to Approach This
- Start by clarifying functional and non-functional requirements with the interviewer.
- Estimate the scale: QPS, storage, bandwidth. This drives your design decisions.
- Draw a high-level architecture first, then deep dive into 1-2 critical components.
- Discuss trade-offs explicitly (e.g., consistency vs availability, SQL vs NoSQL).
- Address failure scenarios, monitoring, and how the system handles 10x traffic spikes.
Possible Follow-up Questions
- How would you handle a region-wide outage?
- How would you implement rate limiting to protect the system?
- What monitoring and alerting would you set up on day one?
- How would you handle schema migrations with zero downtime?
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Requirements
Functional Requirements:
- User Matching: The system should match riders with nearby drivers based on proximity and estimated time of arrival (ETA).
- Ride Request Handling: Users can re...
Capacity Estimation
Assuming Uber operates in a large city with a population of around 1 million:
- User Base: Estimate 10% of the population uses the app regularly, so approximately 100,000 active users.
- **Ride ...
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