About XA:I CORE

Built with ambition.
Delivered with clarity.

AI-First engineering with a clear standard — fast when speed matters, thorough when depth is needed. Every system is handed over so you can run it independently.

01 / Our Story
Fabian Stillrich · CEO & Founder XA:I CORE
Fabian Stillrich
CEO & Founder · XA:I CORE

What drives us

Engineering means better, more thoughtful, more durable. Our mission: building digital systems that deliver in practice what they promise on paper — with AI as our tool, innovation as our language, and honest communication as our standard.

How we work

Focused and deliberate. Every engagement starts with an honest initial call. AI is our daily tool — in research, code, architecture design, and monitoring. That makes us more efficient, which directly translates into quality and delivery speed.

What sets us apart

Generalists with depth. What we build, we hand over documented and ready to use independently. Our clients benefit from direct access to the engineering level — you talk to the people who actually build.

Engineering with ambition.
Precise. Portable. Built to last.

AI as our tool, innovation as our language, honest communication as our standard.

Proven

Engineering from one source.

From idea to production-ready system — everything from one team.

AI-First
Methodology in every project
Direct
Access to engineering team
GDPR
Compliant · EU-hosted
100%
Documented · independently usable
02 / Principles

Six standards every project is measured against.

01
AI-First, always.
AI in every step — research, architecture, code, testing, monitoring — because it elevates quality and speed.
02
Honest from minute one.
Clear assessment before the project — scope, budget, feasibility, communicated transparently.
03
Full independence.
Documented, portable, independently usable — your systems belong to you.
04
Premium focus.
Few projects at a time — full capacity for every engagement.
05
Direct access.
You talk directly to engineering — personal, on eye level.
06
Innovation as a tool.
New tools, approaches, and methods — because better tools deliver better results.
03 / FAQ

Quickly answered.

Who is behind XA:I CORE?
XA:I CORE was founded and is led by Fabian Stillrich. You speak directly with the engineering level — with the people who actually implement your project, not with an intermediary.
Where are you based?
Our headquarters is in Röttenbach, Bavaria. We work remote-first for clients throughout Germany, Austria and Switzerland — on-site appointments are planned at key milestones.
How do you work?
AI-First at every step — research, architecture, code, tests, monitoring. Every engagement begins with an honest assessment of scope and feasibility. We deliberately take on few projects at a time and hand over every system documented and independently usable.

Let's talk about your project.

Free initial call — honest assessment from minute 1.

Start your project →
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