Dávid Marfiak

Web Developer & Designer

I create modern custom websites and web applications. I help turn ideas into fast and user-friendly digital solutions.

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What I offer

Custom website development

Modern websites | Next.js, Laravel, Filament

2010 - Present
  • I design and develop modern, fast and responsive websites tailored to the needs of your business.
  • A custom administration system allows you to easily edit text, photos and other content without any programming knowledge.
  • I focus on technical SEO, high performance, security and digital accessibility according to WCAG standards.
  • I tailor the website and administration features to your requirements, with the option of further expansion.

Custom web applications

Next.js, React, TypeScript, Laravel, Filament

2010 - Present
  • I design and develop modern, fast and secure web applications that digitize business processes, automate everyday tasks and improve efficiency.
  • I create clear administration interfaces, customer portals, booking systems and internal records with a focus on ease of use.
  • I use Next.js, React, TypeScript, Laravel and Filament to develop reliable applications with high performance, security and room for further expansion.

Custom payment system integration

Online payments, payment gateways, API integrations

2010 - Present
  • I implement payment solutions such as Stripe, GoPay, Comgate and Besteron, including card payments, Apple Pay, Google Pay and other supported payment methods.
  • I develop systems for automatic transaction processing, payment matching, invoice generation, subscription management and recurring payments.
  • I integrate payment systems into online stores, booking systems and web applications, including API communication, payment notifications and secure data transfer.

Website diagnostics and repair

WordPress, PrestaShop, Laravel, PHP, MySQL

2010 - Present
  • I identify and fix technical problems, code errors, broken features and database issues. I help restore damaged websites, online stores and web applications.
  • I resolve critical errors, compromised websites, malicious code, post-update issues and conflicts between modules or plugins, with a focus on security, stability and data protection.
  • I improve slow websites, optimize databases and resolve server, hosting and PHP configuration problems. I help restore unavailable systems and prevent recurring outages.

Featured projects

Bohovske.sk

A custom-built online store with a wide range of features and modern integrations.

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Project preview Bohovske.sk

Okpizza.sk

Website with a complete ordering system, integrated payment gateway, and custom-built features.

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Project preview Okpizza.sk

Turistickepalice.sk

An e-commerce store specializing in Fizan trekking poles, with exclusive distribution rights in Slovakia. Powered by PrestaShop.

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Project preview Turistickepalice.sk

About me

Hi, I'm Dávid. I create modern websites and applications with a focus on clean design and ease of use.

I primarily work with Next.js, React, TypeScript, Laravel, Filament, and Tailwind CSS. I’m constantly learning new technologies and turning my knowledge into practical, real-world projects.

Dávid Marfiak