Design a Video Streaming for Rippling
Last updated: September 23, 2025
Quick Overview
Design a event-driven video streaming system that handles millions of requests. Discuss trade-offs in consistency, availability, and performance.
Rippling
September 23, 2025601
10
1,707 solved
Design a event-driven video streaming system that handles millions of requests. Discuss trade-offs in consistency, availability, and performance.
This fundamentals question from Rippling's System Design Round tests whether you can reason about software design at a deep level. The interviewer expects discussion of maintainability, testability, and operational considerations.
What the Interviewer Expects
- Design a complex system component applying multiple engineering principles
- Reason about system-level trade-offs: performance, reliability, developer experience
- Discuss advanced patterns: event sourcing, CQRS, distributed transactions
- Address cross-cutting concerns: observability, security, backward compatibility
- Demonstrate depth in both theoretical foundations and practical implementation
Key Topics to Cover
How to Approach This
- Apply SOLID principles. Single Responsibility makes code testable, Open/Closed makes it extensible.
- Choose data structures based on access patterns, not familiarity.
- Prefer immutable data and message passing over shared mutable state for concurrency.
- Design APIs with RESTful conventions, versioning, meaningful errors, and pagination from day one.
Possible Follow-up Questions
- What testing strategy would you use for this component?
- How would this design change if the team size doubled?
- How would you measure the performance of this component in production?
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Core Design Principles
For the video streaming system at Rippling, we can apply the following core design principles:
- Event-Driven Architecture: This principle allows the system to react to events (e.g., user reques...
Architecture
The architecture of the video streaming system will be based on microservices with the following key components:
- API Gateway: Acts as a single entry point for all client requests, routing them...
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