Zhe (Leo) Liu
Senior Full-Stack & AI Developer
Summary
- Full-Stack Lead: Architected HA distributed systems bridging both ecosystems.
- GenAI & Agents: Built prod-ready RAG, LangChain/LangGraph state machines, & MCP memory context for autonomous agents.
- Backend Architecture: Decoupled microservices via Kafka for high concurrency. Managed load balancing/SSL with Nginx.
- Frontend & Perf: Modernized web arch with Next.js (SSR/ISR) for SEO/Web Vitals. Built React/Tailwind Design Systems.
- DevOps: Championed Code Reviews & auto-testing. Built GitHub Actions pipelines for 'One-Click Deploys'.
- Client & Leadership: Led technical demos for key clients. Translated complex business requirements into actionable roadmaps.
Skills
Languages
JavaTypeScriptJavaScriptC#PythonSQL
Frontend
ReactNext.jsTailwind CSSReduxHTML5/CSS3
Backend & Cloud
.NETNode.jsAzureAWSPostgreSQLRedisNoSQLLangChain
CI/CD & DevOps
DockerKubernetesGitHub ActionsJestPlaywrightTerraform
Experience
Senior Full-Stack & AI Engineer
—Pantheon IQ•New Zealand (Remote)
- AI & RAG Architecture: Solved hallucination issues in Multi-Agent systems using LangGraph state machines & Memo0 long-term memory. Optimized Qdrant vector retrieval, slashing query latency by 40% and enabling real-time reasoning.
- Full-Stack Modernization: Engineered a scalable Next.js 14 & Node.js system to replace legacy workflows. Architected an event-driven pipeline using Azure Service Bus to decouple high-concurrency data ingestion, handling 10k+ daily events via Azure Container Apps.
- Legacy System Stability: Managed the coexistence of strict .NET 8 core services with agile frontends. Implemented Redis distributed caching to reduce database load by 60%, successfully serving high-frequency client requests with 99.99% uptime.
- Engineering Leadership: Bridged the gap between Product and Engineering by translating ambiguous goals into clear System Design specs. Introduced rigorous Code Review standards and CI/CD pipelines, reducing production bugs by 30%.
PythonLangChainNext.jsNode.js.NETBlazorAzureQdrantRedis
Graduate Teaching Assistant
—University of Auckland•Auckland
- Full-Stack Architecture Support: Guided 50+ graduate students in architecting production-ready MERN & Next.js apps. Resolved complex state management and hydration errors common in modern React development.
- DevOps & Best Practices: Led workshops on Docker and GitHub Actions, teaching students how to move from 'works on my machine' to reliable cloud deployments.
- Agile Engineering Mentorship: Simulated real-world sprint environments to teach Code Reviews, Git Flow, and technical communication, preparing students for Tier-1 engineering roles.
ReactNode.jsExpressMongoDBDevOpsDocker
Education
University of Auckland
Master of Information Technology