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Software Engineer
01
News Feed System Design
Feed Ranking Architecture
Design a scalable News Feed ranking system for Facebook
FEED RANKING ARCHITECTURE
Start
02
Coding Problem Decomposition
Constraint Analysis
03
Arrays, Maps, and Complexity
Data Structure Selection
04
Trees and Graph Traversal
Traversal Strategy
05
Dynamic Programming Design
State Definition
06
API Contract Design
Interface Boundaries
07
Data Modeling at Scale
Query Pattern Design
08
Feed Ranking Signals
Signal Quality Analysis
09
Real-Time Messaging
Fanout Architecture
10
Cache and Storage Strategy
Cache Invalidation
11
Content Moderation Pipeline
Policy-to-System Translation
12
Concurrency and Failure Recovery
Race Condition Diagnosis
13
Service Observability
Latency Breakdown
14
Privacy by Design
Access Boundary Design
15
Mobile Performance
Client Latency Profiling
16
Distributed Data Consistency
Consistency Model Selection
17
System Design Trade-offs
Capacity Estimation
18
Production Incident Response
Root Cause Isolation
19
Technical Disagreement
Evidence-Based Communication
20
Engineering Impact Story
Ownership Evidence
