Hi, I'm —
Leonard
Zeutschler
"Let's build something fun together"
Full-Stack Developer✦Technical Consultant✦Lead AI Engineer
📍 Ruhr, Germany
♥ buildingeve.ai — emotion-aware AI that tests how communication actually feels, before it goes liveA few words
I'm Leonard — I write code, herd AI agents, and turn vague ideas into things that actually work. By day a Technical Consultant at CYBERIUM, by night co-founding 45level. I get a kick out of weird problems, neat APIs, and good coffee.
☕ Once tried to write a regex to match all valid regexes. The agents handle that now.
Leonard, in the wild
what i can help with
⚡
Full-stack apps
Next.js, Vue, Python — from prototype to production.
🤖
AI engineering
Agents, NLP pipelines, Pydantic-AI, n8n flows that just work.
🧭
Technical consulting
Stack audits, team mentoring, architecture you can actually maintain.
Stuff I love using
(probably more hours at the keyboard than is strictly healthy)▲ Next.js
🟢 Vue.js
📜 JavaScript
🐍 Python
🐘 PostgreSQL
☁️ GCP
🗣️ NLP
🤖 Pydantic AI
🔗 n8n
✨ AI Agents
Find me, fight me, hire me
in
LinkedIn
Say hi, send a meme, hire me.
→
< >
GitHub
Where the bugs are written.
→
◈
CYBERIUM
My day job. Pioneering digital transformation.
→
45
45level
Co-founded. AI engineering, the next level.
→
Drop a line. I read everything (eventually).
The journey so far
45level2025 → now
Lead AI Engineer & Co-Founder
Next-level business, data & AI engineering. Building agentic systems that ship.
CYBERIUM2024 → now
Technical Consultant
Pioneering digital transformation. Architecting full-stack solutions and leading technical implementations.
K&S Software-Systeme2017 — 2024
Front-End Developer
Where it all began. Seven years of pixels, components, and growing into the craft.
🎓 Education
Fachinformatiker, Anwendungsentwicklung
Heinz-Nixdorf-Berufskolleg
2017 — 2021