Web app · 2025 – now
HKLawyer.ai
Free bilingual legal answers, grounded in 20+ years of Hong Kong case law
- Questions
- 20K+
- Eval pass rate
- 80%
- Visitors
- 52K+
- Case law
- 20+ yrs
- Next.js
- React
- Python
- Hybrid RAG
- BM25
- Qdrant
- Docker
Open to new roles
- Bonn
- Hong Kong
I build AI that turns data into decisions.
Hey, I'm Toby, an AI engineer, most recently at DHL Data & AI, and co-founder of HKLawyer.ai. I studied New Media at CityU's School of Creative Media, fell for data, and now ship LLM products, RAG systems, agents, and dashboards, designed with the same care as the models behind them.
$ build(AI Engineer, Data Science, RAG Systems, LLM Integration, Machine Learning, Full-Stack AI)
Data
20+ years of HK court judgments
Model
Hybrid RAG (dense + BM25) + LLM judge
Decision
20K+ legal questions answered
- 20K+ legal questions answered
- 52K+ HKLawyer.ai visitors
- 80% LLM-as-a-judge pass rate
- 103★ Deepstory on GitHub
- 14★ VMProtect License Manager
- DHL
- 6 certifications
- M.Sc. Management & Data Science
- 3× Dean's List
01Selected work
Things I've shipped
Production AI with real users, open source that others build on, and one tiny game.
Open source · 2020
103
GitHub stars 23 forks
Deepstory
Turn any text into a video of a character telling it, in their own voice
Full-stack web app
14VMProtect License Manager
Self-hosted license generation for VMProtect, delegated to resellers
- Next.js
- TypeScript
- Supabase
- RSA
- Tailwind CSS
Playable
02Journey
From creative media to AI in production
A decade between Hong Kong and Germany, with one through-line: making complex data feel obvious.
- Certifications
- 6
- Years in data
- 7+
- Dean's List
- ×3
Hong Kong · Lüneburg
2015 – 2020
Creative media roots
New Media at CityU's School of Creative Media, plus a double degree in Digital Media at Leuphana. Machine learning, HCI, UX/UI, and generative art, with three Dean's Lists along the way. I learned to obsess over what people see first.
Census & Statistics Dept · BASF · Hong Kong
2019 – 2020
First real data
A lakehouse pipeline for the HK government, then BASF: TF-IDF candidate scoring, sales forecasting, and a supplier recommender. My bachelor's thesis chained four deep learning models into Deepstory (grade 1.3).
ALTEN · Hamburg
2021 – 2026
The fundamentals
Almost five years in Hamburg: Power BI for 2,000+ consultants (reporting 80% faster), Fabric and Databricks pipelines, a RAG chatbot for aircraft manuals, and a GenAI platform that cut project setup by 60%. On the side, HKLawyer.ai and open source.
DHL Data & AI · Bonn
2026
AI in production
Associate AI Engineer: Document AI pipelines on Gemini, a Pydantic AI multi-agent system for internal-control validation, a React GenAI app for DHL Consulting, and the backend of the Customs AI Agent.
Bonn · open to new roles
Now
What's next
My M.Sc. in Management & Data Science is done. Now looking for AI engineering, data analytics, research software, or applied research roles where models and experience both matter.
03Writing
Build logs & deep dives
What I learn shipping AI, plus the archive from building Deepstory back in 2020.
P.S. There are easter eggs hidden around this site. Some are obvious, others obscure. ↑↑↓↓ ^^