Work

Projects

Mostly web, with detours through real time, machine learning and electronics. Each entry says what the project does and what was hard about it.

Optiva Solutions
2026AI agent
A multi-tenant SaaS that automates the back office of small Australian businesses: quotes, invoicing, appointments, follow-ups. AI agents do the work; the client only ever sees a dashboard.
- FastAPI
- Next.js
- PostgreSQL
- Redis
- n8n
- API Anthropic
Invoice Maker
2026Web
An invoicing tool for freelancers: clients, templates, twenty currencies, discounts and tax. What you see on screen is exactly the PDF that comes out of the printer.
- FastAPI
- Next.js
- PostgreSQL
- Tailwind CSS
- TypeScript
- Alembic
Nine to One
2026Game
A real-time multiplayer card game for two to five players, built for the phone. Empty seats fill up with bots, including one trained by self-play.
- Next.js
- TypeScript
- FastAPI
- WebSocket
- PyTorch
- NumPy
matthieuguiot.dev
2025Web
The site you are reading. Bilingual, with a backoffice that drives every text, project and image without touching the code.