AI & automation
I find the processes that eat up the most time in your company and automate them. Agent systems, connecting AI to your existing tools, custom scripts. The goal is not AI at any cost — the goal is less manual work.
// Jozef Walterstein · consultant
AI and automation,
built on 20 years in IT.
I help companies deploy AI where it actually saves work — and I make sure the whole thing runs securely. From the first consultation to a solution running in production.
01 / About
Who I am
My name is Jozef. I have been in IT for over twenty years — most of them managing server infrastructure and running migration and hardening projects for international companies, remotely and onsite across Europe, North America and Asia.
In recent years I have focused mainly on AI and automation. Not because it is fashionable, but because for the first time I see a technology that can take most of the routine work off a company's plate. My job is to find exactly where it makes sense and get it to the point where it runs on its own.
„Vzdať sa nie je možnosť." — the motto of this site's first version (in Slovak). Still true.
02 / What I do
What I can help with
Security
I spent years hardening systems for large international companies. Audits, configuration, documentation — and when needed, the uncomfortable questions like “who exactly has access to production?”
Web & infrastructure
I will build a website or a small SaaS from design to deployment, including the server it runs on. Backups, monitoring, automated deploys. Nothing you would have to manage by clicking around.
Scripts & tools for legacy environments
Single-purpose scripts and small tools that keep older environments alive. A script stopped working? Runs too long and needs optimizing? Got a repetitive task a simple GUI would solve? Get in touch.
03 / Projects
What I have worked on
20+ years of IT infrastructure for international companies
Server infrastructure management, migration and hardening projects — remote and onsite with clients across EMEA, North America and Asia-Pacific. The experience everything else on this page is built on.
Complete website rework — home wellness and longevity products
The original site was just about fast enough and could be managed, but it took many hours and keeping styles and content consistent was hard. I rebuilt it from scratch: new architecture, speed, an SEO foundation and content management the client handles on their own.
A multi-tenant VPS that manages itself
One server, multiple projects. Caddy, Docker Compose and git as the single source of truth — backups, health checks and the deploy pipeline run automatically, and a new project deploys with a single command. No clicking around an admin panel.
04 / Tools & open-source
Things built along the way
Working with AI produces a pile of small tools and scripts. The usable ones I publish.
[TO ADD: tool name]
A short description of what the tool does and what problem it solved.
github.com/[TO ADD] →[TO ADD: tool name]
A short description of what the tool does and what problem it solved.
github.com/[TO ADD] →[TO ADD: tool name]
A short description of what the tool does and what problem it solved.
github.com/[TO ADD] →05 / Stack
What I work with
Tools change every month. This is what I currently use daily.
AI tools
Claude Code · Fable 5, Opus 4.8, Sonnet 5
OpenAI Codex · GPT 5.5
Cursor · Composer 2.5
xAI Grok & Imagine
OpenRouter
local LLMs
Infrastructure
Linux
Docker & Compose
Caddy
Hetzner
Cloudflare · Pages, DNS, Turnstile
git
restic backups
Development
Laravel & Filament
Astro
WordPress
Node.js
Python
PowerShell · legacy environments
PHP
MCP integrations
06 / How I work
How I work
Short iterations and continuous results — no six-month wait for a big reveal. I use AI daily in my own work, so I know what to expect from it and where its limits are.
Everything I hand over is versioned, backed up and reversible. And you will not end up depending on me: every handover includes documentation and procedures so you can run the system yourself.
07 / Contact
Got a project on your desk?
Tell me what it is about. I will get back to you within three business days.