Info
A map of real-world systems I’ve worked on at HoYoverse — ranging from observability stacks to resource governance and distributed systems.
Each project note includes core reference, design intent, and interview talking points — following my own documentation standards.
Resource Governance & Reporting
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Resource Utilization System — Core Reference
Infra-wide cost & usage reporting across AWS using Prometheus, YACE, recording rules -
Resource Utilization System — Interview Talking Points
Key design insights, metrics collected, and follow-up questions for interviews
Latency & Network Diagnostics
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Insight — Core Reference
Cross-region probe service with hop-level latency tracing, Takumi/Mediary-aware -
Insight — Interview Talking Points
Architecture walkthrough and design motivation for infra interview context -
Global Network Probe System
Real-time network diagnostics using distributed ping/trace and anomaly surfacing
Messaging, Pipelines & Distributed Systems
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Kafka MM2 Rollback System
Monitoring and fallback for MirrorMaker2 replication (Prometheus + Grafana stack) -
SES Asynchronous Report Pipeline
Cost-optimized, multi-stage email reporting system (CloudWatch + Lambda + S3)
Access & Deployment Automation
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Nginx-based Resource Whitelisting Automation
Dynamic config templating with NGX Lua, GitOps-style deployment, access audit logging -
AWS SaaS Deployment with CloudFormation
Automated deployment of SaaS pipelines with IaC, multi-region account separation
Observability Patterns
- Observability & Monitoring
Generalizable practices extracted from project work (dashboards, exporters, alerts)
Documentation Standards
- Project Documentation Template (Detailed) — full architecture, challenges, metrics, outcomes
- Project Documentation Template (Concise) — compact summary for resume/interview use