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Jiahua Huang
Intern Full-Stack Software Engineer specializing in web apps and cloud-native systems
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About
Backend engineer who scaled a food delivery platform by migrating from a single-service architecture to Spring Cloud microservices with an API gateway and Kafka-based event-driven order pipeline. Reported outcomes include ~50% latency reduction, stable ~2K RPS throughput, and 99.8% uptime, with strong emphasis on safe migrations (dual writes, canaries, schema versioning) and security (JWT/RBAC/Postgres RLS).
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Key Strengths
- Evolved monolith to Spring Cloud microservices for high throughput and reliability
- Designed event-driven order processing with Kafka for asynchronous workflows
- Improved latency by ~50% and stabilized throughput at ~2K RPS
- Improved uptime to 99.8% via fault isolation
- Migration risk management: phased rollout, dual writes, canary deployments, backward-compatible APIs
- Resolved dual-write data drift using reconciliation jobs and eventual consistency monitoring
- Prevented duplicate orders by identifying race conditions and implementing idempotency + distributed locks
- Production-grade API security: JWT validation, RBAC, RLS in Postgres, least-privilege enforcement
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