skip to content
~/daniel_

$ whoami

Daniel Holzmann

AI Engineer & Full-Stack Developer. I build production-ready AI agents and ship software with coding agent workflows, backed by 20+ years of hands-on software engineering.

location: Vienna, Austriaexp: 20+ yearsnow: Head of Engineering @ Sitelevel.ai

## skills --level

radar: skill level · 1-5bars: years of experience

12345JavaScript / TypeScriptNode.jsReactSolid.jsPythonSystemintegrationRustAI agentsCoding agentworkflowsEngineeringleadership
  • AI agents skill level 4 of 5, 2 yrs
  • Coding agent workflows skill level 4 of 5, 1 yr
  • JavaScript / TypeScript skill level 5 of 5, 10+ yrs
  • Node.js skill level 5 of 5, 10+ yrs
  • System integration skill level 5 of 5, 10+ yrs
  • Rust skill level 4 of 5, 2 yrs
  • Engineering leadership skill level 4 of 5, 10+ yrs
  • React skill level 4 of 5, 10+ yrs
  • Solid.js skill level 3 of 5, 1 yr
  • Python skill level 1 of 5, 3 yrs

## about

I started coding for fun as a teenager - it grew into my main occupation. At 30, after years of autodidact training, I studied Software Engineering at the University of Applied Sciences Upper Austria in Hagenberg.

10+ years of leading and supporting engineering teams - always hands-on, always writing code myself. Today I build AI agents and agentic workflows for production and connect them with modern web apps and (legacy) systems. I help teams put coding agents to productive use without compromising on code quality.

At heart, I'm still a tinkerer.

## git log --career

  1. Mar 2025 - present

    Head of Engineering · Sitelevel.ai

    First engineer; built the tech stack and a team of 7 engineers from scratch. Hands-on contributor for: production-ready AI agents and agentic workflows with evals, guardrails and traceability, e.g. reasoning over financial reports traced to source data. In pilot with design partners on real ERP data; ERP integrations, CI, DevOps, DX.

    stack: Mastra · TypeScript · Rust · MCP · tool calling · RAG · guardrails · evals · GraphQL · webhooks · OAuth/OIDC · RBAC · Postgres · Docker · GitHub Actions

  2. May 2018 - 6 yrs 10 mos

    Principal Software Architect · Bond Vet

    First engineer; built the tech stack and a team of 12 engineers from scratch. Contributor: all websites and apps on the PIMS; LLM classification of NPS feedback; KPI data warehouse; CI, DevOps, DX.

    stack: TypeScript · Node.js · GraphQL · webhooks · MongoDB · BigQuery · AWS · GCP · CircleCI

  3. Jan 2017 - 1 yr 3 mos

    Lead Developer · Veho Technologies

    First engineer; built the stack: web, Android, iOS apps, route planning.

    stack: TypeScript · Node.js · GraphQL · webhooks · Google Maps SDK · CircleCI

  4. Jan 2011 - 5 yrs 2 mos

    Lead Developer · atipso

    Consultant and technical lead as a freelancer.

    stack: PHP · JavaScript · Node.js · Meteor · MongoDB · webhooks · Travis CI

  5. Feb 2006 - 11 yrs

    Freelance · danielholzmann.com

    Web development, specialized in React and Node.js.

    stack: TypeScript · Node.js · Bun · PHP · Python · MongoDB · Postgres · MariaDB · Docker

$ print --format=cv

Need a classic CV for HR? Just print this page - a print stylesheet recompiles it into a one-page résumé.

## connect

daniel@danielholzmann.com