Lenno
Hartono.
An aspiring Data Scientist turning messy domain data into defensible answers. Published research, production models, and the analyses behind them.
AI first, built to ship.
I'm a final-year IT student at RMIT in Melbourne, drawn to applied AI, the part where a messy domain problem becomes a system somebody can actually use.
My work has shipped twice so far: a RAG-based clinical chatbot published at ICCSCI 2025, and an AI copyediting platform now in use at an academic publisher. I split my time between Python, TypeScript, and the cloud platforms holding it all together.
I'm looking for graduate roles in data, business analytics, or AI teams that care as much about clarity and evaluation as they do about the underlying model or query.
- Python
- OpenAI
- Anthropic
- Gemini
- RAG
- Embeddings
- TypeScript
- React
- Next.js
- Tailwind
- Node.js
- PostgreSQL
- FastAPI
- Express
- SQL
- Azure
- AWS
- Docker
- Vercel
- Railway
- Git
A few things I've shipped.
Where I've worked & studied.
Building CopyEditor AI for OAPA's JUTLP
Internal tools on Power Platform · +20% productivity
Healthcare LLMs · RAG · co-authored ICCSCI 2025 paper
Led 200+ CS students · +60% activist registrants
WAM 87.75 / 100 · Dean's List 2025
Let's talk.
Looking to hire a graduate analyst, or just curious — say hi.