About
Hi, I'm Antonin.
Staff Engineer building AI-backed systems, engineering standards, and the workflows that let teams ship serious software.
Staff engineer focused on the infrastructure production LLM systems run on: evaluation harnesses, multi-provider dispatch, rate-limit handling, and guardrails on model output.
- Years building
- 20+
- Blogging since
- 2012
- GitHub stars
- 600+
Principles
See the proverbs project →- A deployed MVP is worth two prototyped.
- Dance like nobody is watching, code like everybody is.
- Today's fashion is tomorrow's legacy.
- Debugging becomes easier if you first admit that you are the problem.
- The best code is no code at all.
Beyond Code
The rest of the operating system
Photography
I shoot animals, landscapes, people, and street scenes. The camera is how I stay observant.
Fiction
I write AI-themed fiction and short stories when technical writing is not enough.
Podcasts & Games
I have opinions about Final Fantasy, narrative design, and the overlap between games and technology.
Capabilities
What I work with now
The stack changes. The throughline doesn't. I'm usually working where backend systems, product delivery, and AI workflows collide.
AI & LLM Systems
Measuring model output, routing it across providers, and trusting none of it by default.
- LLM Evaluation & Judge Grading
- Multi-Provider LLM Dispatch
- Token Budgeting & Rate-Limit Engineering
- Structured Output & Guardrails
- Model Context Protocol (MCP)
- Agent Tooling & Orchestration
Languages
Python on the backend, TypeScript for everything else, SQL wherever the data lives.
- Python
- TypeScript
- SQL
Platforms & Tools
Async services on Kubernetes, databases picked per job, front ends in React or Svelte.
- FastAPI
- Redis
- Postgres
- SQLite
- Kubernetes on Azure
- React & Next.js
- SvelteKit
Leadership
Setting technical direction and standards, then reviewing what ships against them.
- Technical Strategy
- Engineering Standards
- Cross-Team Delivery
- Code Review
- Mentoring
Selected work
The proof behind the list above.
| Work | What it is | Kind |
|---|---|---|
| cc-dash | TypeScript · Model Context Protocol | Project |
| Skillbox | Claude Code · Agent tooling | Project |
| Agent Compiler | CLI that embeds agent skills into CLAUDE.md and fails CI when the embedded content drifts. | Project |
| Using Git Worktrees to Parallelize AI Agents | How each agent gets its own isolated workspace | Writing |
| 17 Side Projects I Built With Claude Code in Two Months | TUI apps in Rust and Go, browser games, agent tooling | Writing |
| Programmer's Proverbs | 680 stars | Open source |
Work together
I help teams implement AI-enabled product work, sharpen engineering practices, and build systems that survive real usage.
Get in touch →