LeonardZeutschler.
I write code, herd AI agents, and turn vague ideas into things that actually work.
Ruhr, Germany — usually less formal
01 — About
By day a Technical Consultant at CYBERIUM, by night co-founding 45level.
Nothing makes me happier than taking a cool idea and actually bringing it to life — that feeling is why I build.
Terminally deep in the AI community — threads, drops, leaderboards.
If a model shipped overnight, I know its benchmarks by breakfast.
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.
02 — Companies
Where I build.
03 — Experience
A decade of shipping.
45level
Lead AI Engineer & Co-Founder
Next-level business, data & AI engineering. Building agentic systems that ship.
CYBERIUM
Technical Consultant
Pioneering digital transformation. Architecting full-stack solutions and leading technical implementations.
K&S Software-Systeme
Front-End Developer → Full-Stack
Seven years from junior frontend to building complete applications. Grew from writing CSS to owning entire product stacks.
Heinz-Nixdorf-Berufskolleg
Fachinformatiker, Anwendungsentwicklung
Formal training in application development, done alongside the day job at K&S.
Henkel & BASF
IT Internships
Worked in large cross-functional IT project teams at two DAX corporations. Learned a lot — and learned that big-org life wasn't for me.
Ruhr-Uni Bochum
IT Security (Studium)
1.5 years of IT Security before pivoting to hands-on development. The crypto and network fundamentals still come in handy.
04 — Shipped
Things that made it out.
05 — Toolbox
Frontend
AI Engineering
Data & Cloud
06 — Leo's AI Corner
Stuff I keep sending people.
a growing library — updated whenever something good dropsMCP Servers
13Skills & Frameworks
19
07 — Contact