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. Twenty years of building software, most of it lately in domains where a confidently wrong answer is worse than no answer.
- 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.
SEC·BThe rest of the operating system
Beyond code
- P1Photography
I shoot animals, landscapes, people, and street scenes. The camera is how I stay observant.
- P2Fiction
I write AI-themed fiction and short stories when technical writing is not enough.
- P3Podcasts & Games
I have opinions about Final Fantasy, narrative design, and the overlap between games and technology.
SEC·CWhat 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
SEC·DSelected work
Proof, in parts.
- W3
Agent Compiler
CLI that embeds agent skills into CLAUDE.md and fails CI when the embedded content drifts.
I help teams implement AI-enabled product work, sharpen engineering practices, and build systems that survive real usage.