N.01 OWN PRODUCT
CORESYNTH.IO
A hosting platform I'm building to make server management simpler. Provisioning, automation, an AI agent and operational tooling in one place.
WEBSITES, SYSTEMS. AND SOLID. BACKEND_
I'm Filip Džudža — a developer from Liberec. I build websites, internal tools and hosting systems with Next.js, PHP and TypeScript. I like practical work: a fast website, a stable server and code that is easy to maintain. More and more I build AI agents and complete automations — because a lot of the work still done by hand can simply run on its own.
> NEXT.JS / PHP / TYPESCRIPT
> HOSTING, LINUX, AUTOMATION
> CLEAN DEV WEB / BACKEND / INFRA
PRACTICAL DEV.
I don't sell buzzwords. I take a problem, split it into smaller parts and build something people can actually use and maintain. I work across frontend, backend and server operations — so I care about how it looks, how it works and how it runs.
WEBS & APPS
Next.js, Astro, React, PHP. Fast presentation sites, admin panels, internal tools and customer-facing systems.
SERVERS & HOSTING
Linux, Nginx, Docker, Proxmox, databases and automation. Things that should run reliably without unnecessary drama.
AUTOMOTIVE
Besides web work, I also do programming around automotive. It's a technical overlap, not the main face of this portfolio.
18+
40+
2018
PHP TypeScript JavaScript Node.js Next.js Python NGINX Docker PostgreSQL MariaDB Redis Linux Let's Encrypt Git PHP TypeScript JavaScript Node.js Next.js Python NGINX Docker PostgreSQL MariaDB Redis Linux Let's Encrypt Git PHP TypeScript JavaScript Node.js Next.js Python NGINX Docker PostgreSQL MariaDB Redis Linux Let's Encrypt Git
NOW.
LIVE
N.02 CLIENTS / PROJECTS
WEB DEVELOPMENT
I build websites and applications with Next.js, Astro, React and PHP. I like clean interfaces, fast loading and a backend that still makes sense a month later.
N.03 AUTOMATION
AI AGENTS
I build AI agents that handle bookings, customer communication, reminders and tedious internal routine. Why do it by hand when it can run on its own? Time saved is the best feature.
PRICING.
Starting packages for websites, apps, backend work and automation. Every project has its own scope, but this gives you a quick baseline.
P.01 PRESENCE
WEB / LANDING
FROM 12 000 CZK
A fast website, portfolio, microsite or landing page with strong performance and clear structure.
- Astro / Next.js
- Responsive brutal UI
- SEO basics + deploy
P.02 PRODUCT
APPLICATION
FROM 35 000 CZK
Internal tools, dashboards, client portals or booking systems with real business logic.
- Auth + database
- Admin interface
- API integrations
P.03 AGENTS
AI AUTOMATION
FROM 25 000 CZK
Complete AI agents that actually run operations — bookings, replying to customers on Instagram, SMS reminders and calendar management over Discord. Why do by hand what can work on its own.
- Discord / Instagram / SMS
- Bookings, memory, tools
- Wired straight into operations
P.04 SYSTEMS
BACKEND / INFRA
FROM 18 000 CZK
APIs, databases, servers, Docker, Nginx, monitoring and things that need to run reliably.
- REST / worker processes
- Linux deploy
- Performance + logs
Final pricing depends on scope, integrations and timeline.
→ DISCUSS SCOPE PRINCIPLES.
01
UNDERSTAND FIRST
Before writing code, I want to know what the result should actually solve. A good website is not just pretty — it helps people or work.
02
SIMPLE AND HONEST
I don't add technology just because it's trendy. If PHP and Nginx are enough, they're enough. If Next.js makes sense, I use Next.js.
03
THINK ABOUT OPERATIONS
A website doesn't end at deploy. I care about performance, backups, logs, updates, hosting and being able to find issues quickly.
04
NORMAL COMMUNICATION
No corporate fog. I'll tell you what makes sense, what is unnecessary and what I would do first in your place.
TESTIMONIALS.
Filip brought our bookings, e-shop and client accounts into one system that finally makes sense. We save a ton of time on admin and clients book online themselves. Straight talk, no fluff.
I needed a website, service bookings and an e-shop in one place. Filip built it so I can run it alongside my work in the workshop — fast, stable, and whenever something needs tweaking it's handled right away.
HAVE AN IDEA
OR A PROBLEM?.
A website, backend, hosting or automation. Tell me what you're solving and we'll find the simplest way forward.