David Liu

High-Performance Video Processing Platform

• Led development of distributed video processing system handling 1M+ videos/day
• Architected microservices using gRPC and Protocol Buffers for efficient communication
• Implemented custom workload scheduling using Go channels and goroutines
• Achieved 10x performance improvement through SIMD optimization with cgo
• Reduced processing latency from 30s to 3s per video

Real-time Data Pipeline

• Designed and implemented streaming data pipeline processing 500K+ events/second
• Built custom rate limiting solution using Redis and Lua scripts
• Implemented circuit breaker pattern using hystrix-go
• Achieved 99.99% uptime with automatic failover
• Reduced operational costs by 60% through efficient resource utilization

Service Mesh Implementation

• Led migration to service mesh architecture using Istio
• Developed custom service discovery mechanism using etcd
• Implemented distributed tracing using OpenTelemetry
• Built automated canary deployment system
• Reduced service-to-service latency by 40%

Real-time Matching Engine

• Developed high-performance matching engine handling 100K+ requests/second
• Implemented custom concurrent queue using Go channels
• Built real-time monitoring system using Prometheus and Grafana
• Reduced matching latency by 70% through algorithm optimization
• Achieved 99.999% availability through distributed system design

Payment Processing System

• Architected distributed payment processing system handling $1B+ monthly transactions
• Implemented saga pattern for distributed transactions
• Built idempotency system ensuring exactly-once processing
• Reduced payment processing errors by 99%
• Implemented real-time fraud detection using Go concurrency

Developer Platform

• Designed and implemented internal Go service framework
• Built automated testing framework achieving 90%+ coverage
• Developed custom code generation tools reducing boilerplate by 70%
• Created comprehensive documentation and developer guides
• Reduced new service development time by 50%

• Focus on Distributed Systems
• Research in High-Performance Computing