Production-Grade URL Shortener
Objective: Design a secure, globally scalable URL shortener with enterprise-grade reliability.
Tech Stack
Backend
- .NET 8
- Azure Functions
- Azure CosmosDB
- Redis Cache
Frontend
- React.js
- Blazor
Infrastructure & DevOps
- Azure Bicep (Infrastructure as Code)
- Azure Front Door
- GitHub Actions (CI/CD)
- Microsoft Entra ID
- Azure Key Vault
Key Achievements
- Built a microservices architecture with auto-scaling, reducing latency by 35% under peak loads
- Implemented Infrastructure as Code (IaC) using Azure Bicep, enabling rapid environment replication
- Integrated distributed tracing via OpenTelemetry for real-time performance monitoring
- System handles 10,000+ requests/sec with 99.99% uptime
Technical Implementation
- Microservices architecture for scalability
- Distributed caching with Redis
- Real-time monitoring with Application Insights
- Load balancing with Azure Front Door
- Automated deployment pipelines
- Comprehensive logging and telemetry
Security Features
- Microsoft Entra ID integration
- Azure Key Vault for secrets management
- Rate limiting and DDoS protection
- SSL/TLS encryption
- Request validation and sanitization
Performance Optimizations
- Multi-region deployment
- CDN integration
- Database query optimization
- Cache hit ratio > 95%
- Response time < 100ms (p95)