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Portrait of Antonin against greenery

About · Boulder, Colorado

Hi, I'm Antonin.

Staff Engineer building AI-backed systems, engineering standards, and the workflows that let teams ship serious software.

  1. Pinnedsummary

    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.

    Years building20+
    Blogging since2012
    GitHub stars600+
  1. #1proverb

    A deployed MVP is worth two prototyped.

  2. #2proverb

    Dance like nobody is watching, code like everybody is.

  3. #3proverb

    Today's fashion is tomorrow's legacy.

  4. #4proverb

    Debugging becomes easier if you first admit that you are the problem.

  5. #5proverb

    The best code is no code at all.

off the clock

The rest of the operating system

Antonin hiking in Colorado

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.

4 groups

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 GradingMulti-Provider LLM DispatchToken Budgeting & Rate-Limit EngineeringStructured Output & GuardrailsModel Context Protocol (MCP)Agent Tooling & Orchestration

Languages

Python on the backend, TypeScript for everything else, SQL wherever the data lives.

PythonTypeScriptSQL

Platforms & Tools

Async services on Kubernetes, databases picked per job, front ends in React or Svelte.

FastAPIRedisPostgresSQLiteKubernetes on AzureReact & Next.jsSvelteKit

Leadership

Setting technical direction and standards, then reviewing what ships against them.

Technical StrategyEngineering StandardsCross-Team DeliveryCode ReviewMentoring

Working together

I help teams implement AI-enabled product work, sharpen engineering practices, and build systems that survive real usage.

Get in touch →