Győri István Ádám

Websites, web apps & business software

Custom-built for small and mid-sized businesses – in Hungary and worldwide. You talk directly to the developer who builds your solution.

Independent developer · Debrecen, Hungary · Remote worldwide
Your problem is my challenge
Call me: +36 30 474 2777 Free Consultation
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How can I help your business?

Every project is built to your needs – these are the most common starting points.

Business website

A fast, mobile-friendly company website that brings enquiries – not just a digital business card.

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Webshop

Online store with payment, shipping and invoicing integrations, tailored to how you actually sell.

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ERP & business software

Custom inventory, order, production and invoicing system – replacing the pile of Excel sheets.

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Web application

Customer portals, booking systems, internal tools and SaaS products – usable from any browser.

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Automation & integrations

Connect your systems (invoicing, webshop, CRM) and automate repetitive manual work.

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Why work with me?

Direct contact

No account managers or middlemen – you talk to the person who actually builds your software.

Honest advice

If an existing product fits your needs better than custom development, I'll tell you.

Fixed quote

After understanding your needs you get an itemised quote – no hidden costs.

You own the code

Full source code and documentation are yours – no vendor lock-in.

Fast response

I usually reply within one business day, by phone or email.

Hungarian & English

I work with local businesses and international clients alike.

Featured Projects

Real production systems and automation solutions

TDT Electric – tdtelectric.hu
Live client website

TDT Electric – Electrician Website

Bilingual (HU/EN) business website for an electrical contractor in Debrecen. Custom design with dark mode, mobile-first layout, quote request flow and local SEO for Hajdú-Bihar county.

Web DesignResponsiveLocal SEOHU / EN
Visit live site: tdtelectric.hu

Enterprise ERP Solutions

Complete ERP systems from scratch. Inventory management, production planning, invoicing, reporting, multi-user permissions. Production systems for real businesses.

LaravelVue.jsMySQL

Web Automation Platform

Complex automation system with Python & Selenium. Automates repetitive web tasks, data extraction, form filling. Significant time savings on manual work.

PythonSeleniumWeb Scraping

Business Process Automation

C# desktop automation application with Selenium integration. Automates complex multi-step business workflows, API integrations, data processing.

C#SeleniumAPI Integration
Open Source Examples on GitHub

How we work together

  1. 1

    Free consultation

    A 20–30 minute call or meeting where you tell me about your business and the problem to solve.

  2. 2

    Proposal & quote

    I send a written proposal with scope, timeline and a fixed, itemised price.

  3. 3

    Development

    I build the solution in small steps; you see progress regularly and can give feedback early.

  4. 4

    Launch & support

    Go-live, training if needed, and ongoing support or maintenance afterwards.

Frequently Asked Questions

Everything you need to know about working with me

Every project is custom-built, so there is no fixed price list. After a free consultation I send you a written, itemised quote with a fixed price for the agreed scope – no hidden costs.
Yes – small and mid-sized businesses are my main clients. We can start with a small, well-defined first version and extend it later as your business grows.
A business website usually takes 2–6 weeks, a webshop or web application 1–3 months, a larger business system 3–6 months. You get a realistic timeline in the proposal.
Yes. I work fully remotely in English with international clients, and can invoice companies in the EU and beyond as a registered Hungarian sole proprietor.
Mostly remotely from Debrecen, Hungary, with online meetings. In and around Debrecen I'm happy to meet in person as well.
Yes. After launch I offer support and maintenance: bug fixes, updates, new features and technical help, as needed or on a monthly basis.
In most cases yes – invoicing (e.g. Számlázz.hu), webshops, CRM, accounting or warehouse software, via API, file import/export or automation.
You do. You receive the full source code and documentation, so you are never locked in to a single developer.
Yes, I'm happy to sign NDAs and work under a formal contract. I operate as a registered individual entrepreneur (EV) in Hungary and issue proper invoices.

Still have questions?

Get Free Consultation

Have a project in mind?

Tell me about it in a short call or email – the first consultation is free and comes with no obligation.

Call: +36 30 474 2777 Send an email