Production AI Engineer
Max Chan
Python and TypeScript engineer specializing in LangGraph agentic systems, RAG pipelines, LLMOps, document AI, and full-stack delivery.
I have spent 4+ years as the sole senior engineer at an AI startup, owning technical delivery for Hong Kong Government and commercial clients from requirements gathering through air-gapped deployment.
Impact
Proof points hiring teams and clients can scan in seconds.
Selected systems
Production work across government, EdTech, and robotics.
10-school live pilot · EdTech
HKDSE AI exam-grading platform
Reduced marking from hours to under 6 minutes per 24-page handwritten paper while staying within +/-2 marks of professional marking standards.Beta trial · Hong Kong disciplinary service
Air-gapped government compliance RAG
Architected a zero-cloud-dependency RAG platform for Hong Kong's largest disciplinary service, then delivered an invited training session on RAG architecture and evaluation for their engineers.Live robot system · Low-resource NLP
Cantonese NLP for Unitree GO2
Fine-tuned Cantonese speech recognition for live robot hardware, added streaming VAD, and separated up to six simultaneous speakers in uncontrolled environments.Experience
Client-facing AI product ownership.
Parami AI
AI Software Developer & Product Manager
- Sole senior engineer and product owner for government and commercial AI delivery.
- Primary client-facing engineer across requirements, architecture, procurement constraints, and deployment.
- Delivered an invited RAG training talk for government engineers after shipping the air-gapped compliance platform.
- Owned full-stack implementation across Python services, Next.js products, retrieval, evaluation, observability, and testing.
New Concept Engineering Company Limited
Software Developer
- Built and maintained full-stack client web applications across debugging, feature development, and system investigation.
Lovetravel Interactive Technologies
Technical Intern
- Integrated WeChat Pay for a cross-border e-commerce platform and supported full-stack feature development.
Skills
Grouped by work a hiring manager can recognize.
AI & agents
- LangGraph
- LangChain
- ReAct graphs
- HITL
- query routing
- tool use
Retrieval & evaluation
- Qdrant
- hybrid search
- GraphRAG
- RAGAS
- Langfuse
- LLM-as-a-judge
Application stack
- FastAPI
- Next.js
- React
- PostgreSQL
- Redis
- Docker
Quality & delivery
- Playwright
- pytest
- Vitest
- Prometheus
- Grafana
- RS256/JWKS
Education
Formal study plus shipped systems.
- MSc Artificial Intelligence in progress, SWISS UMEF University of Applied Sciences, 2025-2027
- Computer Science studies, University of New South Wales, Sydney, 2016-2019
- International Baccalaureate, Yew Chung International School of Hong Kong